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TM028HDZP01

TM028HDZP01

Product catalog summary

General Specifications
The TM028HDZP01 is a 2.8-inch display module with a resolution of 240(RGB)x320, using a-Si technology. It features a vertical stripe pixel configuration with a pixel pitch of 0.18x0.18 mm. The module dimensions are 48.40 x 69.20 x 2.20 mm, and the active area is 43.20 x 57.60 mm. It lacks a touch screen panel and uses a ZIF connection. The display is driven by the ST7789VI IC, supporting 65K/262K color depth.

Input/Output Terminals
The module has 40 pins for functions like power supply, ground, interface mode selection, reset, chip select, and data I/O. It supports 8-bit and 16-bit MCU parallel interfaces and a 4-line serial interface.

Absolute Maximum Ratings
Power voltage (VCC) ranges from -0.3 to 4.6 V, with logic supply voltage (IOVCC) also between -0.3 and 4.6 V. Operating temperature is -20 to 70°C, and storage temperature is -30 to 80°C.

Electrical Characteristics
The module operates at 3.2 to 3.4 V for logic and I/O. Power consumption in white mode is 42.6 mW, and the backlight consumes 240 to 256 mW. The backlight unit has 4 parallel white LEDs, each with a forward current of 20 mA and a forward voltage of 2.8 to 3.2 V.

Timing Chart
Detailed timing characteristics for 8080 series MCU parallel interface and 4-line serial interface are provided, including reset timing and write cycle sequences.

Optical Characteristics
Optical performance details include viewing angles, contrast ratio, response time, chromaticity, uniformity, and luminance, measured under specific conditions.

Environmental/Reliability Test
The module undergoes tests like high/low temperature operations, storage tests, humidity tests, thermal shock, ESD, and package drop tests to ensure reliability.

Mechanical and Packing Drawings
Diagrams provide detailed dimensions and tolerances for the module, ensuring proper handling and integration.

Precautions for Use
Guidelines include avoiding mechanical shock, careful handling of the polarizer, preventing static electricity, and maintaining appropriate storage conditions.

Specifications and Protocols
Protocols for 8080-Series WRX and RDX signals are outlined, with WRX for writing data and RDX for reading data from the LCD driver.

Serial Interface
The serial interface includes a command write mode for writing commands and data to the LCD driver, using a 4-line serial protocol for reading specific commands.

Power On/Off Sequence
The power sequence prevents damage or abnormal effects, with a hardware reset necessary if the RESX line is unstable during power on.

Catalog excerpts

MODEL VERSION: SPEC VERSION : ISSUED DATE: □Preliminary Specification ■Final Product Specification TIANMA Confirmed : Prepared by Junqin_li Xiaonan_han Xujian_pei Lizhi_zhang This technical specification is subjected to change without notice The information contained herein is the exclusive property of TIANMA MICRO-ELECTRONICS Corporation and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of TIANMA MICRO-ELECTRONICS Corporation. Page

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The information contained herein is the exclusive property of TIANMA MICRO-ELECTRONICS Corporation and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of TIANMA MICRO-ELECTRONICS Corporation. Page 2 of 28

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Issued Date Preliminary Specification Release Final Spec Release Editor Zhixian_Li Yanzhong_kong The information contained herein is the exclusive property of TIANMA MICRO-ELECTRONICS Corporation and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of TIANMA MICRO-ELECTRONICS Corporation. Page 3 of 28

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General Specifications Feature Display Spec. Mechanical Characteristics Electrical Characteristics Size Resolution Technology Type Pixel Configuration Pixel pitch(mm) Display Mode Surface Treatment Viewing Direction LCM (W x H x D) (mm) Active Area(mm) With /Without TSP Matching Connection Type LED Numbers Interface Color Depth Driver IC Spec 2.8 240(RGB)x320 a-Si R.G.B. Vertical Stripe 0.18X0.18 Normally Back HC ALL 48.40 x 69.20x 2.20 43.20× 57.60 Without TSP ZIF 4-Parallel white LED MCU 8/16 bit / 4-wire SPI 65K/262K ST7789VI Note 1: Viewing direction for best image quality is different from...

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Input/Output Terminals Backlight anode Backlight cathode Backlight cathode Backlight cathode Backlight cathode Power Supply for Analog Power Supply for I/O System Interface mode select. Interface mode select. Reset pin,Signal is active low. Read enable in 8080 MCU parallel interface. SPI interface input pin. The data is latched on the rising edge of the SCL signal. SPI interface output pin. The data is output on the falling edge of the SCL signal. data input data input data input data input Chip select signal. Low: chip can be accessed; High: chip cannot be accessed. Display data/command selection...

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data input data input data input data input data input data input data input data input data input data input data input data input Tearing effect signal is used to synchronize MCU to frame memory Note1: Interface mode select IM123=0,IM0=1 : MCU-16bit, DB[15:0] IM123=0,IM0=0 : MCU-8bit, DB[7:0] IM123=1, IM0=0: 4-line 8bit serial. — I/O definition：I --- Input; O --- Output; I/O --- Input/Output; P --- Power; N No connection Absolute Maximum Ratings GND=0V Item Power Voltage The information contained herein is the exclusive property of TIANMA MICRO-ELECTRONICS Corporation and shall not be distributed,...

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Logic Supply voltage Logic Input voltage Logic Output Voltage Operating Temperature Storage Temperature Absolute Maximum Ratings , Note1: Input/output voltage include DB0~DB4, DB5~DB10, DB11~DB15, RESET,CS, DCX ,RD WR,SDA,SDO, FMARK, IM123,IM0. The information contained herein is the exclusive property of TIANMA MICRO-ELECTRONICS Corporation and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of TIANMA MICRO-ELECTRONICS Corporation. Page 7 of 2

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Electrical Characteristics MODULE BLOCK DIAGRAM Vcom &Tcon Grayscale Manipulation Voltage The information contained herein is the exclusive property of TIANMA MICRO-ELECTRONICS Corporation and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of TIANMA MICRO-ELECTRONICS Corporation. Page 8 of 28

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Supply voltage for logic Logic Supply voltage High Level High Level Input Signal Voltage Output Voltage Power Consumption White Mode (60Hz) Back Light Table 4.1 LCD module electrical characteristics Note1:IOVCC≤VCC Note2:under white pattern,VCC=IOVCC=3.3.different product will be different , for reference only. 4.3 Backlight Unit Item Forward Current Forward Voltage Operating Life Time Remark For each LED For each LED For each LED CIRCUIT DIAGRAM (If=20mA / Vf=3.0V TYP) Note 2: LED: VF =3.0V IF =20mA Note 3: IF is defined for one LED. ℃ Optical performance should be evaluated at Ta=25 only. If...

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Timing Chart 5.1 8080 Series MCU Parallel Interface Characteristics: 16/8-bit Bus Figure 1 Parallel Interface Timing Characteristics (8080-Series MCU Interface) The information contained herein is the exclusive property of TIANMA MICRO-ELECTRONICS Corporation and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of TIANMA MICRO-ELECTRONICS Corporation. Page 10 of 28

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8080 Parallel Interface Characteristics The information contained herein is the exclusive property of TIANMA MICRO-ELECTRONICS Corporation and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of TIANMA MICRO-ELECTRONICS Corporation. Page 11 of 28

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Note1: The rising time and falling time (Tr, Tf) of input signal and fall time are specified at 15 ns or less. Logic high and low levels are specified as 30% and 70% of IOVCC for Input signals. Note2: VDDI=IOVCC,CSX=CS,WRX=WR,RDX=RD 5.2 Serial Interface Characteristics (4-line serial) Figure 4 4-line serial Interface Timing Characteristics The information contained herein is the exclusive property of TIANMA MICRO-ELECTRONICS Corporation and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of TIANMA MICRO-ELECTRONICS Corporation. Page 12 of...

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Table2 4-line serial Interface Characteristics Note : The rising time and falling time (Tr, Tf) of input signal are specified at 15 ns or less. Logic high and low levels are specified as 30% and 70% of IOVCC for Input signals. Note2: CSX=CS,DOUT=SDO Reset Timing RESX=RESET Figure 5 Reset Timing The information contained herein is the exclusive property of TIANMA MICRO-ELECTRONICS Corporation and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of TIANMA MICRO-ELECTRONICS Corporation. Page 13 of 28

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TM028HDZP01

TM028HDZP01

Catalog excerpts

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