Data Sheet - Confidential
DOC 56-34-01508 • Rev 1.0 • March 2017
iNAND® 7250
e.MMC 5.1 with HS400 Interface
Confidential, subject to all applicable non-disclosure agreements
www.SanDisk.com
Confidential
SanDisk® iNAND 7250 e.MMC 5.1+ HS400 I/F data sheet
REVISION HISTORY
Doc. No
Revision
Date
Description
DOC-56-34-01508
1.0
March - 2016
Released version
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TABLE OF CONTENTS
1.
Introduction ......................................................................................................................... 5
1.1. General Description ...................................................................................................... 5
1.2. Plug-and-Play Integration ............................................................................................. 6
1.3. Feature Overview ......................................................................................................... 7
1.4. MMC bus and Power Lines ........................................................................................... 8
1.4.1. Bus operating conditions ............................................................................................. 8
2. e.MMC Selected Features Overview ................................................................................ 10
2.1. HS400 Interface .......................................................................................................... 11
2.2. Enhanced User Data Area (EUDA) ............................................................................. 11
2.3. Field Firmware Upgrade (FFU) ................................................................................... 11
2.4. Cache ......................................................................................................................... 11
2.5. Discard ....................................................................................................................... 11
2.6. Power off Notifications ................................................................................................ 12
2.7. Packed Commands .................................................................................................... 12
2.8. Boot Partition .............................................................................................................. 12
2.9. RPMB Partition ........................................................................................................... 12
2.10. Automatic Sleep Mode ................................................................................................ 12
2.11. Sleep (CMD5) ............................................................................................................. 12
2.12. Enhanced Reliable Write ............................................................................................ 12
2.13. Sanitize ...................................................................................................................... 13
2.14. Secure Erase .............................................................................................................. 13
2.15. Secure Trim ................................................................................................................ 13
2.16. Partition Management................................................................................................. 13
2.17. Device Health ............................................................................................................. 14
2.18. EOL Status ................................................................................................................. 14
2.19. Enhanced Write Protection ......................................................................................... 14
2.20. High Priority Interrupt (HPI)......................................................................................... 14
2.21. H/W Reset .................................................................................................................. 14
2.22. Host-Device Synchronization Flow (Enhanced STROBE) ........................................... 15
2.23. Command-Queue ....................................................................................................... 15
3. Product Specifications ..................................................................................................... 16
3.1. Typical Power Measurements ..................................................................................... 16
3.2. Operating Conditions .................................................................................................. 17
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3.2.1. Operating and Storage Temperature Specifications ................................................... 17
3.2.2. Moisture Sensitivity ................................................................................................... 17
3.3. Reliability .................................................................................................................... 18
3.4 Typical System Performance ...................................................................................... 19
4. Physical Specifications .................................................................................................... 20
Interface Description ......................................................................................................... 22
5.
5.1. MMC I/F Ball Array ..................................................................................................... 22
5.2. Pins and Signal Description ........................................................................................ 23
5.3. Registers value ........................................................................................................... 24
5.3.1. OCR Register ............................................................................................................ 24
5.3.2. CID Register.............................................................................................................. 24
5.3.3. DSR Register ............................................................................................................ 24
5.3.4. CSD Register ............................................................................................................ 25
5.3.5. EXT_CSD Register ................................................................................................... 26
5.3.6. User Density.............................................................................................................. 32
6. HW Application Guidelines ............................................................................................... 33
6.1. Design Guidelines ...................................................................................................... 33
6.2. Capacitor Selection & Layout Guidelines .................................................................... 34
6.3. Reference Schematics ................................................................................................ 36
7. Propriety iNAND 7250 feature overview .......................................................................... 37
7.1. Device Report ............................................................................................................. 37
7.1.1. Device Report fields .................................................................................................. 37
7.2. Power-Loss indications ............................................................................................... 38
7.2.1. Unstable Power-Supply indications ............................................................................ 38
8. Marking .............................................................................................................................. 40
9. Ordering Information ........................................................................................................ 41
How to Contact Us .................................................................................................................. 42
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1. INTRODUCTION
1.1. General Description
Overview SanDisk iNAND 7250 is an Embedded Flash Drive (EFD) designed for write intensive
applications in a wide range of home entertainment and security applications, such as Set-Top-
Box (STB), Over The Top (OTT), Home Gateways, Smart TV, Smart Security Cameras and more.
The iNAND 7250 utilizes an LDPC ECC machine and MLC memory to provide a robust, high
performance, high quality and high endurance product. The LDPC engine significantly improves
error correction enabling longer device lifetime and an increased ability to handle operation at
high temperature.
The iNAND 7250 provides 8GB to 64GB of capacity and supports e.MMC 5.1. The iNAND 7250 is
the ideal choice to deliver high reliability and high performance for storage applications like
imaging, video, music, GPS, gaming, email, office and other new applications such as NOR
replacement for embedded systems or other devices.
The design of the iNAND 7250 is based on a JEDEC compatible form factor measuring
11.5x13mm (153 balls) for all capacities to lower integration costs and accelerate time-to-
market.
Architecture iNAND 7250 combines an embedded thin flash controller with advanced
enterprise Multi-level Cell (eMLC) NAND flash technology enhanced by SanDisk’s embedded
flash management software running as firmware on the flash controller. iNAND 7250 employs
an industry-standard eMMC 5.11 interface featuring Command-Queue, HS400 interface, FFU,
as well as legacy eMMC 4.51 features such as EUDA, Power Off Notifications, Packed
commands, Cache, Boot / RPMB partitions, HPI, and HW Reset, making it an optimal device for
both reliable code and data storage.
Like our other iNAND products, iNAND 7250 offers plug-and-play integration and support for
multiple NAND technology transitions, as well as features such as an advanced power
management scheme.
iNAND 7250 architecture and embedded firmware fully emulates a hard disk to the host
processor, enabling read/write operations that are identical to a standard, sector-based hard
drive. In addition, SanDisk firmware employs patented methods, such as virtual mapping,
dynamic and static wear-leveling, and automatic block management to ensure high data
reliability and maximizing flash life expectancy.
iNAND 7250 also includes an intelligent controller, which manages interface protocols, data
storage and retrieval, error correction code (ECC) algorithms, defect handling and diagnostics,
power management and clock control.
Combining high performance with features for easy integration and exceptional reliability,
iNAND 7250 is an EFD designed to exceed the demands of both manufacturers and their
customers.
1 Compatible to JESD84-B51
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1.2. Plug-and-Play Integration
iNAND’s optimized architecture eliminates the need for complicated software integration and
testing processes thereby enabling plug-and-play integration into the host system. The
replacement of one iNAND device with another of a newer generation requires virtually no
changes to the host. This allows manufacturers to adopt advanced NAND Flash technologies
and update product lines with minimal integration or qualification efforts.
iNAND 7250 features a MMC interface allows for easy integration regardless of the host
(chipset) type used. All device and interface configuration data (such as maximum frequency
and device identification) are stored on the device.
Figure 1 shows a block diagram of the SanDisk iNAND 7250 with MMC Interface.
MMC Bus
Interface
SanDisk iNAND
Single Chip
controller
Data In/Out
Flash
Memory
Control
Figure 1 - SanDisk iNAND 7250 with MMC Interface Block Diagram
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1.3. Feature Overview
SanDisk iNAND 7250, with MMC interface, includes the following features:
• Memory controller and NAND flash
• Mechanical design that complies with JEDEC Specifications with specific optimizations for
automotive applications
• Offered in three TFBGA packages of e.MMC 5.1
o 11.5mm x 13mm x 0.8mm (8GB-16GB)
o 11.5mm x 13mm x 1.0mm (32GB)
o 11.5mm x 13mm x 1.2mm (64GB)
• Operating temperature range: –25C° to +85C°
• Dual power system
• Core voltage (VCC) 2.7-3.6 V
•
I/O (VCCQ) voltage, either: 1.7-1.95V or 2.7-3.6V
• 8GB - 64GB of data storage
• Supports three data bus widths: 1bit (default), 4bit, 8bit
• Complies with e.MMC Specification Ver. 5.1 HS400
• Variable clock frequencies of 0-20 MHz, 0-26 MHz (default), 0-52 MHz (high-speed), 0-200
MHz SDR (HS200), 0-200 MHz DDR (HS400)
• Up to 300 MB/sec bus transfer rate, using 8 parallel data lines at 200 MHz, HS400 Mode
• High data integrity with eMLC memory, advanced LDPC ECC engine, automatic refresh,
advanced power protection
• Flexible EUDA, Fast boot
• Up to 3K P/E cycles, 10 year data retention @ 55°C fresh
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SanDisk iNAND 7250 e.MMC 5.1 HS400 I/F data sheet
1.4. MMC bus and Power Lines
SanDisk iNAND 7250 supports the MMC interface protocol. For more details regarding these
buses refer to JEDEC standard No. JESD84-B51.
The iNAND bus has the following communication and power lines:
• CMD: Command is a bidirectional signal. The host and iNAND operate in two modes, open
drain and push-pull.
• DAT0-7: Data lines are bidirectional signals. Host and iNAND operate in push-pull mode.
• CLK: Clock input.
• RST_n: Hardware Reset Input.
• VCCQ: Power supply line for host interface.
• VCC: Power supply line for internal flash memory.
• VDDi: iNAND’s internal power node, not the power supply. Connect 0.1uF capacitor from
VDDi to ground.
• VSS, VSSQ: Ground lines.
• RCLK: Data strobe.
• VSF: Vendor specific functions used for debugging purposes.
1.4.1. Bus operating conditions
Table 1 - Bus operating conditions
Max
Unit
VCCQ+0.5
100
V
µA
µA
Parameter
Peak voltage on all lines
Input Leakage Current (before initializing
and/or connecting the internal pull-up
resistors)
Min
-0.5
-100
Input Leakage Current (after changing the
-2
2
bus width and disconnecting the internal
pull-up resistors)
Output Leakage Current (before initializing
and/or connecting the internal pull-up
resistors)
-100
100
µA
Output Leakage Current (after changing
-2
2
µA
the bus width and disconnecting the
internal pull-up resistors)
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