DDR2 SDRAM
MT47H256M4 – 32 Meg x 4 x 8 banks
MT47H128M8 – 16 Meg x 8 x 8 banks
MT47H64M16 – 8 Meg x 16 x 8 banks
Features
• VDD = +1.8V ±0.1V, VDDQ = +1.8V ±0.1V
• JEDEC-standard 1.8V I/O (SSTL_18-compatible)
• Differential data strobe (DQS, DQS#) option
• 4n-bit prefetch architecture
• Duplicate output strobe (RDQS) option for x8
• DLL to align DQ and DQS transitions with CK
• 8 internal banks for concurrent operation
• Programmable CAS latency (CL)
• Posted CAS additive latency (AL)
• WRITE latency = READ latency - 1 tCK
• Selectable burst lengths (BL): 4 or 8
• Adjustable data-output drive strength
• 64ms, 8192-cycle refresh
• On-die termination (ODT)
• Industrial temperature (IT) option
• RoHS-compliant
• Supports JEDEC clock jitter specification
1Gb: x4, x8, x16 DDR2 SDRAM
Features
Options1
• Configuration
– 256 Meg x 4 (32 Meg x 4 x 8 banks)
– 128 Meg x 8 (16 Meg x 8 x 8 banks)
– 64 Meg x 16 (8 Meg x 16 x 8 banks)
• FBGA package (Pb-free) – x16
– 84-ball FBGA (8mm x 12.5mm)
Rev. G, H
• FBGA package (Pb-free) – x4, x8
– 60-ball FBGA (8mm x 11.5mm)
Rev. G
• FBGA package (Pb-free) – x4, x8
– 60-ball FBGA (8mm x 10mm) Rev. H
• FBGA package (lead solder) – x16
– 84-ball FBGA (8mm x 12.5mm)
• FBGA package (lead solder) – x4, x8
– 60-ball FBGA (8mm x 11.5mm)
Rev. G, H
Rev. G
• FBGA package (lead solder) – x4, x8
– 60-ball FBGA (8mm x 10mm) Rev. H
• Timing – cycle time
– 1.875ns @ CL = 7 (DDR2-1066)
– 2.5ns @ CL = 5 (DDR2-800)
– 2.5ns @ CL = 6 (DDR2-800)
– 3.0ns @ CL = 4 (DDR2-667)
– 3.0ns @ CL = 5 (DDR2-667)
– 3.75ns @ CL = 4 (DDR2-533)
• Self refresh
– Standard
– Low-power
• Operating temperature
– Commercial (0°C ≤ TC ≤ 85°C)
– Industrial (–40°C ≤ TC ≤ 95°C;
–40°C ≤ TA ≤ 85°C)
– Automotive (–40°C ≤ TC , TA ≤ 105ºC)
• Revision
Marking
256M4
128M8
64M16
HR
HQ
CF
HW
HV
JN
-187E
-25E
-25
-3E
-3
-37E
None
L
None
IT
AT
:G/:H
Note:
1. Not all options listed can be combined to
define an offered product. Use the Part
Catalog Search on www.micron.com for
product offerings and availability.
PDF: 09005aef821ae8bf
1GbDDR2.pdf – Rev. T 02/10 EN
1
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2004 Micron Technology, Inc. All rights reserved.
Products and specifications discussed herein are subject to change by Micron without notice.
1Gb: x4, x8, x16 DDR2 SDRAM
Features
Table 1: Key Timing Parameters
Speed Grade
CL = 3
CL = 4
CL = 5
CL = 6
Data Rate (MT/s)
-187E
-25E
-25
-3E
-3
-37E
400
400
400
400
400
400
533
533
533
667
533
533
667
800
667
667
667
n/a
800
800
800
n/a
n/a
n/a
CL = 7
1066
n/a
n/a
n/a
n/a
n/a
tRC (ns)
54
55
55
54
55
55
Table 2: Addressing
Parameter
Configuration
Refresh count
Row address
Bank address
Column address
256 Meg x 4
128 Meg x 8
64 Meg x 16
32 Meg x 4 x 8 banks
16 Meg x 8 x 8 banks
8 Meg x 16 x 8 banks
8K
A[13:0] (16K)
BA[2:0] (8)
A[11, 9:0] (2K)
8K
A[13:0] (16K)
BA[2:0] (8)
A[9:0] (1K)
8K
A[12:0] (8K)
BA[2:0] (8)
A[9:0] (1K)
PDF: 09005aef821ae8bf
1GbDDR2.pdf – Rev. T 02/10 EN
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2004 Micron Technology, Inc. All rights reserved.
Figure 1: 1Gb DDR2 Part Numbers
1Gb: x4, x8, x16 DDR2 SDRAM
Features
Example Part Number: MT47H128M8HQ-37E
MT47H
Configuration
Package
Speed
Revision
-
:
{
:G/:H
Revision
L
IT
AT
Low power
Industrial temperature
Automotive temperature
-187E
-25E
-25
-3E
-3
-37E
Speed Grade
tCK = 1.875ns, CL = 7
tCK = 2.5ns, CL = 5
tCK = 2.5ns, CL = 6
tCK = 3ns, CL = 4
tCK = 3ns, CL = 5
tCK = 3.75ns, CL = 4
Configuration
256 Meg x 4
128 Meg x 8
64 Meg x 16
256M4
128M8
64M16
Package
Pb-free
84-ball 8mm x 12.5mm FBGA
60-ball 8mm x 11.5mm FBGA
60-ball 8mm x 10.0mm FBGA
Lead solder
84-ball 8mm x 12.5mm FBGA
60-ball 8mm x 10mm FBGA
60-ball 8mm x 11.5mm FBGA
HR
HQ
CF
HW
JN
HV
Note:
1. Not all speeds and configurations are available in all packages.
FBGA Part Number System
Due to space limitations, FBGA-packaged components have an abbreviated part marking that is different from the
part number. For a quick conversion of an FBGA code, see the FBGA Part Marking Decoder on Micron’s Web site:
http://www.micron.com.
PDF: 09005aef821ae8bf
1GbDDR2.pdf – Rev. T 02/10 EN
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2004 Micron Technology, Inc. All rights reserved.
1Gb: x4, x8, x16 DDR2 SDRAM
Contents
State Diagram .................................................................................................................................................. 9
Functional Description ................................................................................................................................... 10
Industrial Temperature .............................................................................................................................. 10
Automotive Temperature ........................................................................................................................... 11
General Notes ............................................................................................................................................ 11
Functional Block Diagrams ............................................................................................................................. 12
Ball Assignments and Descriptions ................................................................................................................. 15
Packaging ...................................................................................................................................................... 19
Package Dimensions .................................................................................................................................. 19
FBGA Package Capacitance ......................................................................................................................... 22
Electrical Specifications – Absolute Ratings ..................................................................................................... 23
Temperature and Thermal Impedance ........................................................................................................ 23
Electrical Specifications – IDD Parameters ........................................................................................................ 26
IDD Specifications and Conditions ............................................................................................................... 26
IDD7 Conditions .......................................................................................................................................... 27
AC Timing Operating Specifications ................................................................................................................ 31
AC and DC Operating Conditions .................................................................................................................... 41
ODT DC Electrical Characteristics ................................................................................................................... 42
Input Electrical Characteristics and Operating Conditions ............................................................................... 43
Output Electrical Characteristics and Operating Conditions ............................................................................. 46
Output Driver Characteristics ......................................................................................................................... 48
Power and Ground Clamp Characteristics ....................................................................................................... 52
AC Overshoot/Undershoot Specification ......................................................................................................... 53
Input Slew Rate Derating ................................................................................................................................ 55
Commands .................................................................................................................................................... 68
Truth Tables ............................................................................................................................................... 68
DESELECT ................................................................................................................................................. 72
NO OPERATION (NOP) .............................................................................................................................. 73
LOAD MODE (LM) ..................................................................................................................................... 73
ACTIVATE .................................................................................................................................................. 73
READ ......................................................................................................................................................... 73
WRITE ....................................................................................................................................................... 73
PRECHARGE .............................................................................................................................................. 74
REFRESH ................................................................................................................................................... 74
SELF REFRESH ........................................................................................................................................... 74
Mode Register (MR) ........................................................................................................................................ 74
Burst Length .............................................................................................................................................. 75
Burst Type ................................................................................................................................................. 76
Operating Mode ......................................................................................................................................... 76
DLL RESET ................................................................................................................................................. 76
Write Recovery ........................................................................................................................................... 77
Power-Down Mode .................................................................................................................................... 77
CAS Latency (CL) ........................................................................................................................................ 78
Extended Mode Register (EMR) ....................................................................................................................... 79
DLL Enable/Disable ................................................................................................................................... 80
Output Drive Strength ................................................................................................................................ 80
DQS# Enable/Disable ................................................................................................................................. 80
RDQS Enable/Disable ................................................................................................................................. 80
Output Enable/Disable ............................................................................................................................... 80
On-Die Termination (ODT) ........................................................................................................................ 81
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1GbDDR2.pdf – Rev. T 02/10 EN
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2004 Micron Technology, Inc. All rights reserved.
1Gb: x4, x8, x16 DDR2 SDRAM
Off-Chip Driver (OCD) Impedance Calibration ............................................................................................ 81
Posted CAS Additive Latency (AL) ............................................................................................................... 81
Extended Mode Register 2 (EMR2) .................................................................................................................. 83
Extended Mode Register 3 (EMR3) .................................................................................................................. 84
Initialization .................................................................................................................................................. 85
ACTIVATE ...................................................................................................................................................... 88
READ ............................................................................................................................................................. 90
READ with Precharge ................................................................................................................................. 94
READ with Auto Precharge .......................................................................................................................... 96
WRITE .......................................................................................................................................................... 101
PRECHARGE ................................................................................................................................................. 111
REFRESH ...................................................................................................................................................... 112
SELF REFRESH .............................................................................................................................................. 113
Power-Down Mode ....................................................................................................................................... 115
Precharge Power-Down Clock Frequency Change .......................................................................................... 122
Reset ............................................................................................................................................................. 123
CKE Low Anytime ...................................................................................................................................... 123
ODT Timing .................................................................................................................................................. 125
MRS Command to ODT Update Delay ........................................................................................................ 127
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1GbDDR2.pdf – Rev. T 02/10 EN
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
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1Gb: x4, x8, x16 DDR2 SDRAM
List of Tables
Table 1: Key Timing Parameters ...................................................................................................................... 2
Table 2: Addressing ......................................................................................................................................... 2
Table 3: FBGA 84-Ball – x16 and 60-Ball – x4, x8 Descriptions .......................................................................... 17
Table 4: Input Capacitance ............................................................................................................................ 22
Table 5: Absolute Maximum DC Ratings ........................................................................................................ 23
Table 6: Temperature Limits .......................................................................................................................... 24
Table 7: Thermal Impedance ......................................................................................................................... 25
Table 8: General IDD Parameters .................................................................................................................... 26
Table 9: IDD7 Timing Patterns (8-Bank Interleave READ Operation) ................................................................. 27
Table 10: DDR2 IDD Specifications and Conditions (Die Revisions E, G, and H) ................................................ 28
Table 11: AC Operating Specifications and Conditions .................................................................................... 31
Table 12: Recommended DC Operating Conditions (SSTL_18) ........................................................................ 41
Table 13: ODT DC Electrical Characteristics ................................................................................................... 42
Table 14: Input DC Logic Levels ..................................................................................................................... 43
Table 15: Input AC Logic Levels ..................................................................................................................... 43
Table 16: Differential Input Logic Levels ........................................................................................................ 44
Table 17: Differential AC Output Parameters .................................................................................................. 46
Table 18: Output DC Current Drive ................................................................................................................ 46
Table 19: Output Characteristics .................................................................................................................... 47
Table 20: Full Strength Pull-Down Current (mA) ............................................................................................ 48
Table 21: Full Strength Pull-Up Current (mA) ................................................................................................. 49
Table 22: Reduced Strength Pull-Down Current (mA) ..................................................................................... 50
Table 23: Reduced Strength Pull-Up Current (mA) .......................................................................................... 51
Table 24: Input Clamp Characteristics ........................................................................................................... 52
Table 25: Address and Control Balls ............................................................................................................... 53
Table 26: Clock, Data, Strobe, and Mask Balls ................................................................................................. 53
Table 27: AC Input Test Conditions ................................................................................................................ 54
Table 28: DDR2-400/533 Setup and Hold Time Derating Values (tIS and tIH) ................................................... 56
Table 29: DDR2-667/800/1066 Setup and Hold Time Derating Values (tIS and tIH) .......................................... 57
Table 30: DDR2-400/533 tDS, tDH Derating Values with Differential Strobe ..................................................... 60
Table 31: DDR2-667/800/1066 tDS, tDH Derating Values with Differential Strobe ............................................ 61
Table 32: Single-Ended DQS Slew Rate Derating Values Using tDSb and tDHb .................................................. 62
Table 33: Single-Ended DQS Slew Rate Fully Derated (DQS, DQ at VREF) at DDR2-667 ..................................... 62
Table 34: Single-Ended DQS Slew Rate Fully Derated (DQS, DQ at VREF) at DDR2-533 ..................................... 63
Table 35: Single-Ended DQS Slew Rate Fully Derated (DQS, DQ at VREF) at DDR2-400 ..................................... 63
Table 36: Truth Table – DDR2 Commands ..................................................................................................... 68
Table 37: Truth Table – Current State Bank n – Command to Bank n ............................................................... 69
Table 38: Truth Table – Current State Bank n – Command to Bank m .............................................................. 71
Table 39: Minimum Delay with Auto Precharge Enabled ................................................................................. 72
Table 40: Burst Definition .............................................................................................................................. 76
Table 41: READ Using Concurrent Auto Precharge ......................................................................................... 96
Table 42: WRITE Using Concurrent Auto Precharge ....................................................................................... 102
Table 43: Truth Table – CKE ......................................................................................................................... 117
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1GbDDR2.pdf – Rev. T 02/10 EN
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© 2004 Micron Technology, Inc. All rights reserved.
1Gb: x4, x8, x16 DDR2 SDRAM
List of Figures
Figure 1: 1Gb DDR2 Part Numbers ................................................................................................................... 3
Figure 2: Simplified State Diagram ................................................................................................................... 9
Figure 3: 256 Meg x 4 Functional Block Diagram ............................................................................................. 12
Figure 4: 128 Meg x 8 Functional Block Diagram ............................................................................................. 13
Figure 5: 64 Meg x 16 Functional Block Diagram ............................................................................................. 14
Figure 6: 60-Ball FBGA – x4, x8 Ball Assignments (Top View) ........................................................................... 15
Figure 7: 84-Ball FBGA – x16 Ball Assignments (Top View) .............................................................................. 16
Figure 8: 84-Ball FBGA Package (8mm x 12.5mm) – x16 ................................................................................... 19
Figure 9: 60-Ball FBGA Package (8mm x 11.5mm) – x4, x8 ............................................................................... 20
Figure 10: 60-Ball FBGA (8mm x 10mm) – x4, x8 ............................................................................................. 21
Figure 11: Example Temperature Test Point Location ..................................................................................... 24
Figure 12: Single-Ended Input Signal Levels ................................................................................................... 43
Figure 13: Differential Input Signal Levels ...................................................................................................... 44
Figure 14: Differential Output Signal Levels .................................................................................................... 46
Figure 15: Output Slew Rate Load .................................................................................................................. 47
Figure 16: Full Strength Pull-Down Characteristics ......................................................................................... 48
Figure 17: Full Strength Pull-Up Characteristics ............................................................................................. 49
Figure 18: Reduced Strength Pull-Down Characteristics ................................................................................. 50
Figure 19: Reduced Strength Pull-Up Characteristics ...................................................................................... 51
Figure 20: Input Clamp Characteristics .......................................................................................................... 52
Figure 21: Overshoot ..................................................................................................................................... 53
Figure 22: Undershoot .................................................................................................................................. 53
Figure 23: Nominal Slew Rate for tIS .............................................................................................................. 58
Figure 24: Tangent Line for tIS ....................................................................................................................... 58
Figure 25: Nominal Slew Rate for tIH .............................................................................................................. 59
Figure 26: Tangent Line for tIH ...................................................................................................................... 59
Figure 27: Nominal Slew Rate for tDS ............................................................................................................. 64
Figure 28: Tangent Line for tDS ...................................................................................................................... 64
Figure 29: Nominal Slew Rate for tDH ............................................................................................................ 65
Figure 30: Tangent Line for tDH ..................................................................................................................... 65
Figure 31: AC Input Test Signal Waveform Command/Address Balls ............................................................... 66
Figure 32: AC Input Test Signal Waveform for Data with DQS, DQS# (Differential) ........................................... 66
Figure 33: AC Input Test Signal Waveform for Data with DQS (Single-Ended) .................................................. 67
Figure 34: AC Input Test Signal Waveform (Differential) ................................................................................. 67
Figure 35: MR Definition ............................................................................................................................... 75
Figure 36: CL ................................................................................................................................................ 78
Figure 37: EMR Definition ............................................................................................................................. 79
Figure 38: READ Latency ............................................................................................................................... 82
Figure 39: WRITE Latency ............................................................................................................................. 82
Figure 40: EMR2 Definition ........................................................................................................................... 83
Figure 41: EMR3 Definition ........................................................................................................................... 84
Figure 42: DDR2 Power-Up and Initialization ................................................................................................. 85
Figure 43: Example: Meeting tRRD (MIN) and tRCD (MIN) .............................................................................. 88
Figure 44: Multibank Activate Restriction ....................................................................................................... 89
Figure 45: READ Latency ............................................................................................................................... 91
Figure 46: Consecutive READ Bursts .............................................................................................................. 92
Figure 47: Nonconsecutive READ Bursts ........................................................................................................ 93
Figure 48: READ Interrupted by READ ........................................................................................................... 94
Figure 49: READ-to-WRITE ............................................................................................................................ 94
Figure 50: READ-to-PRECHARGE – BL = 4 ...................................................................................................... 95
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1Gb: x4, x8, x16 DDR2 SDRAM
Figure 51: READ-to-PRECHARGE – BL = 8 ...................................................................................................... 95
Figure 52: Bank Read – Without Auto Precharge ............................................................................................. 97
Figure 53: Bank Read – with Auto Precharge ................................................................................................... 98
Figure 54: x4, x8 Data Output Timing – tDQSQ, tQH, and Data Valid Window .................................................. 99
Figure 55: x16 Data Output Timing – tDQSQ, tQH, and Data Valid Window ..................................................... 100
Figure 56: Data Output Timing – tAC and tDQSCK ......................................................................................... 101
Figure 57: Write Burst ................................................................................................................................... 103
Figure 58: Consecutive WRITE-to-WRITE ...................................................................................................... 104
Figure 59: Nonconsecutive WRITE-to-WRITE ................................................................................................ 104
Figure 60: WRITE Interrupted by WRITE ....................................................................................................... 105
Figure 61: WRITE-to-READ ........................................................................................................................... 106
Figure 62: WRITE-to-PRECHARGE ................................................................................................................ 107
Figure 63: Bank Write – Without Auto Precharge ............................................................................................ 108
Figure 64: Bank Write – with Auto Precharge ................................................................................................. 109
Figure 65: WRITE – DM Operation ................................................................................................................ 110
Figure 66: Data Input Timing ........................................................................................................................ 111
Figure 67: Refresh Mode ............................................................................................................................... 112
Figure 68: Self Refresh .................................................................................................................................. 114
Figure 69: Power-Down ................................................................................................................................ 116
Figure 70: READ-to-Power-Down or Self Refresh Entry .................................................................................. 118
Figure 71: READ with Auto Precharge-to-Power-Down or Self Refresh Entry .................................................. 118
Figure 72: WRITE-to-Power-Down or Self Refresh Entry ................................................................................ 119
Figure 73: WRITE with Auto Precharge-to-Power-Down or Self Refresh Entry ................................................. 119
Figure 74: REFRESH Command-to-Power-Down Entry ................................................................................. 120
Figure 75: ACTIVATE Command-to-Power-Down Entry ................................................................................ 120
Figure 76: PRECHARGE Command-to-Power-Down Entry ............................................................................ 121
Figure 77: LOAD MODE Command-to-Power-Down Entry ............................................................................ 121
Figure 78: Input Clock Frequency Change During Precharge Power-Down Mode ........................................... 122
Figure 79: RESET Function ........................................................................................................................... 124
Figure 80: ODT Timing for Entering and Exiting Power-Down Mode .............................................................. 126
Figure 81: Timing for MRS Command to ODT Update Delay .......................................................................... 127
Figure 82: ODT Timing for Active or Fast-Exit Power-Down Mode ................................................................. 127
Figure 83: ODT Timing for Slow-Exit or Precharge Power-Down Modes ......................................................... 128
Figure 84: ODT Turn-Off Timings When Entering Power-Down Mode ............................................................ 128
Figure 85: ODT Turn-On Timing When Entering Power-Down Mode ............................................................. 129
Figure 86: ODT Turn-Off Timing When Exiting Power-Down Mode ............................................................... 130
Figure 87: ODT Turn-On Timing When Exiting Power-Down Mode ................................................................ 131
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1GbDDR2.pdf – Rev. T 02/10 EN
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2004 Micron Technology, Inc. All rights reserved.