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HMT043ATA-3C LCD Module User Manual Release Date - Preliminary Draft release Document Name: HMT043ATA-3C Page: 1 of 10

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LCD Module User Manual Document Name: HMT043ATA-3C Page: 2 of 10

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LCD Module User Manual 1 Basic Specification TOPWAY HMT043ATA-3C is a Smart TFT Module with 32bit MCU on board. Its graphics engine provides numbers of outstanding features. It supports TOPWAY TML 3.0 (Editor 2017) for preload and pre-design display interface that simplify the host operation and development time. Suitable for industry control, instrumentation, medical electronics, power electric equipment applications. General Specification Screen Size(Diagonal) : Resolution : Color Depth : Pixel Configuration : Display Mode : Viewing Direction : Outline Dimension : Active Area : Backlight...

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LCD Module User Manual Terminal Function UART Interface Terminal (K1/K3) Descriptions Power supply No connection, leave open Data Input (eg. to Host MCU’s UART TXD) Data output (eg. to Host MCU’s UART RXD) Request To Send (function as busy BUSY signal) 1：Busy；0：No busy (eg. to Host MCU IO, check before sending data or command) Ground, (0V) Note. *1. User data and commands transfer through this terminal. *2. HOST using command hand shake during communication is suggested. Power supply (5V) USB DATA negative signal USB DATA positive signal No connection, leave open Ground, (0V) Note. *1. TML...

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LCD Module User Manual VSS=0V, VIO =3.3V, TOP =25C Items Symbol MIN. TYP. MAX. Unit Applicable Pin Operating Voltage VDD 4.8 5.0 5.2 V VDD Rx Input Hi VRxH 0.8VIO VIO V Rx Rx Input Lo VRXL 0 0.2VIO V Rx Tx Output Hi VTXH 0.7VIO VIO V Tx Tx Output Lo VTXL 0 0.3VIO V Tx Operating Current IDD 295 mA VDD (*1) Operating Current (USB) IVUSB 160 mA VUSB Battery Supply current IBAT 0.6 uA (*2) Note. *1. Normal display condition. *2. For Battery driving RTC application, RTC configuration should be enabled in the project global setting. And after install/re-install the battery, it should be power-on...

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LCD Module User Manual Basic Operation Function Descriptions HMT043ATA-3C TML files Picture files ICONS files UART interface Custom Memories Touch Panel VP variables Control and Draw Engine TML files, Picture files, ICON files are stored inside FLASH memory area. They are preloaded to HMT043ATA-3C for stand alone interface use. Those files are preloaded via USB interface as an USB drive. All the interface flow and the touch response are based on the preloaded TML files VP variables memory is inside RAM area, it provides real time access via UART by the HOST or display onto the TFT by TML...

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LCD Module User Manual Quick Start Guide Install TOPWAY Graphics Editor Import pictures 2. design UI flow Connect to host Show 5. real time data Command Descriptions Please refer to “SMART LCD Command Manual” . Document Name: HMT043ATA-3C Page: 7 of 1

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LCD Module User Manual 5 Optical Characteristics Item View Angles Contrast Ratio Response Time TOFF White Blue Uniformity NTSC Luminance 1.IF= 40 mA, and the ambient temperature is 25℃. 2. The test systems refer to Note 1 and Note 2.

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LCD Module User Manual Note 1: The data are measured after LEDs are turned on for 5 minutes. LCM displays full white. The brightness is the average value of 9 measured spots. Measurement equipment SR-3A (1°) Measuring condition: - Measuring surroundings: Dark room - Measuring temperature: Ta=25℃. - Adjust operating voltage to get optimum contrast at the center of the display. Note 3: The definition of contrast ratio (Test LCM using SR-3A (1°)): Luminance When LCD is at “White” state Contrast = Ratio(CR) Luminance When LCD is at “Black” state (Contrast Ratio is measured in optimum common...

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LCD Module User Manual 6 Precautions of using LCD Modules Please refer to "LCD-Module-Design-Handling-Precaution.pdf". Document Name: HMT043ATA-3C Page: 10 of 10

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