Specifications 
Description 
Model Name 
Date 
7.5” E-PAPER DISPLAY 
7.5inch e-Paper V2 
2019/06/28 
Revision 
2.0 
10F, International Science & Technology Building, Fuhong Rd, Futian District, 
Shenzhen, China
Email:
(order/shipment):sales@waveshare.com
(tech support)    :service@waveshare.com 
Website: www.waveshare.com 
Table of Contents 
1. General Description....................................................
     1.1 Overview............................................................
     1.2 Feature ..............................................................
     1.3 Mechanical Specification........................................
     1.4  Mechanical Drawing of EPD module .......................
     1.5  Input/Output Terminals........................................
     1.6  Reference Circuit ................................................
2. Environmental............................................................
     2.1 Handling, Safety and Environmental Requirements...
     2.2  Reliability test.....................................................
3. Electrical Characteristics .............................................
     3.1  Absolute maximum rating.....................................
     3.2  Panel DC Characteristics.......................................
     3.3 Panel AC Characteristics........................................
4. Typical Operating Sequence.........................................
     4.1  Normal Operation Flow.........................................
     4.2  Reference Program Code......................................
5. Command Table.........................................................
6. Optical characteristics.................................................
     6.1  Specifications ....................................................
     6.2   Definition of contrast ratio...................................
     6.3   Reflection Ratio..................................................
     6.4   Bi-stability ........................................................
7. Point and line standard...............................................
8. Packing.....................................................................
9. Precautions ................................................................
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7.5inch e-Paper V22/52
Revision History
Rev.
1.0
Issued Date
May.02.2018
1. Preliminary
2.0
Jun.28.2019
1. Updating
Revised Contents
7.5inch e-Paper V23/52
1. General Description
1.1 Over View 
The display is a TFT active matrix electrophoretic display, with interface and a reference 
system design. The 7.5” active area contains 800×480 pixels, and has 1-bit white/black 
full display capabilities. An integrated circuit contains gate buffer, source buffer, interface, 
timing control logic, oscillator, DC-DC, SRAM, LUT, VCOM, and border are supplied with 
each panel. 
1.2  Features 
• High contrast
• High reflectance
• Ultra wide viewing angle
• Ultra low power consumption
• Pure reflective mode
• Bi-stable
• Commercial temperature range
• Landscape, portrait mode
• Antiglare hard-coated front-surface
• Low current deep sleep mode
• On chip display RAM
• Waveform stored in On-chip OTP
• Serial peripheral interface available
• On-chip oscillator
• On-chip booster and regulator control for generating VCOM, Gate and source driving
voltage
• I2C Signal Master Interface to read external temperature sensor
• Available in COG package IC thickness 300um
1.3 Mechanical Specifications 
Parameter 
Screen Size 
Display Resolution 
Active Area 
Pixel Pitch 
Pixel Configuration 
Outline Dimension 
Weight 
Specifications 
7.5 
800(H)×480(V) 
163.2(H)×97.92(V) 
0.205×0.204 
Square 
170.2 (H)×111.2(V) ×1.18(D) 
44±0.5 
Unit 
Inch 
Pixel 
mm 
mm 
mm 
g 
Remark 
Dpi: 125 
7.5inch e-Paper V24/52
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111,2±0,2 Outline
7.5inch e-Paper V25/52
1.5 Input/Output Terminals 
1.5-1 Pin out List 
Pin # Type  Single 
Description 
Remark 
NC 
No connection and do not connect with other NC pins  Keep Open 
GDR 
RESE 
This pin is N-MOS gate control 
Current sense input for control loop 
NC 
No connection and do not connect with other NC pins  Keep Open 
VSHR 
TSCL 
I/O  TSDA 
Positive source voltage for Red 
I2C clock for external temperature sensor 
I2C data for external temperature sensor 
I 
BS 
Input interface setting. Select 3 wire/ 4 wire SPI interface Note 1.5-5 
O  BUSY_N 
This pin indicates the driver status 
RST_N 
Global reset pin. Low reset 
Note 1.5-4 
Note 1.5-3 
DC 
CSB 
SCL 
Serial communication Command/Data input 
Note 1.5-2 
Serial communication chip select 
Note 1.5-1 
Serial communication clock input 
O 
P 
P 
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1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
I 
I 
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I 
14 
I/O 
SDA 
Serial communication data input 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
P  VDDIO 
P 
VDD 
P 
VSS 
P  VDD_18
V
P 
P 
P 
P 
P 
VOTP 
VSH 
VGH 
VSL 
VGL 
IO voltage supply 
Digital/Analog power 
Digital ground 
1.8V voltage input &output 
OTP program power (7.5V) 
Positive source voltage 
Positive gate voltage 
Negative source voltage 
Negative gate voltage 
O 
VCOM 
VCOM output 
7.5inch e-Paper V26/52
Note 1.5-1: This pin (CSB) is the chip select input connecting to the MCU. The chip is enabled for 
MCU communication only when CSB is pulled Low. 
Note 1.5-2: This pin (DC) is Data/Command control pin connecting to the MCU. When the pin is 
pulled HIGH, the data will be interpreted as data. When the pin is pulled Low, the data 
will be interpreted as command. 
Note 1.5-3: This pin (RST_N) is reset signal input.   The Reset is active Low. 
Note 1.5-4: This pin (BUSY_N) is BUSY_N state output pin. When BUSY_N is low, the operation of 
chip should not be interrupted and any commands should not be issued to the module. 
The driver IC will put BUSY_N pin low when the driver IC is working such as: 
- Outputting display waveform; or
- Programming with OTP
- Communicating with digital temperature sensor
Note 1.5-5: This pin (BS) is for 3-line SPI or 4-line SPI selection. When it is “Low”, 4-line SPI is 
selected. When it is “High”, 3-line SPI (9 bits SPI) is selected. Please refer to below 
Table. 
Table: Bus interface selection 
MPU Interface 
4-lines serial peripheral interface (SPI) 
3-lines serial peripheral interface (SPI) – 9 bits SPI 
BS 
L 
H 
7.5inch e-Paper V27/52
1.6  Reference Circuit 
Note: 
1. Inductor L1 is wire-wound  inductor. There are no special  requirements
for other parameters.
2. Suggests  using Si1304BDL or Si1308EDL TUBE MOS (Q1) , otherwise it
may affect the normal  boost of the circuit.
3. The default  circuit  is 4-wire SPI. If the user wants  to use 3-wire SPI.
4. Default  voltage value of all capacitors  is 50V.
7.5inch e-Paper V28/52