TM1723 is a dedicated circuit for LCD drive control with keyboard scan interface, which integrates MCU digital interface, data latch, LCD drive, keyboard scan, magic color backlight drive and other circuits. This product has excellent performance and reliable quality. It does not need to change the underlying instructions of the decoder board. It is fully compatible with the instruction set of the existing 3-port LED driver IC of Tianwei Electronics. Existing decoder boards that support LED display can be directly connected to the LCD display front panel, without the need for an external microcontroller for key scanning (or scanning keys through the decoding board), and no need to use HT6221 for key scanning. At the same time, it supports PWM backlight drive and SW common input expansion port.

Product features? Adopt low-power CMOS process

20X4 dots LCD driver

Maximum 4X3 key input

4-channel LED driver, with 64-level PWM, can be used for LCD magic backlight driver

4 universal input ports, which can be connected to a dial-type electronic coding switch

1/3 LCD drive bias

LCD working voltage adjustable

Serial interface (CLK, STB, DIO)

Oscillation mode: built-in RC oscillation

Package form: SOP28, SOP32

The application note is mainly used in display driver for VCR, VCD, DVD and home theater products.

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MF-MSMF075-2

MF-MSMF010-2

MF-PSMF020X-2

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MF-NSMF012-2

MF-USMF005-2

MF-USMF020-2

MF-USMF010-2

MF-MSMF050-2

AT45DB161E-SSHD-T

AT45DB161E-SHD-T

AT45DB041E-SHN-T

AT24C16C-PUM

AT24C64D-SSHM-T

SP3232EEY-L/TR

FH26W-39S-0.3SHW(60)

DM3AT-SF-PEJM5

LM1117MPX-3.3/NOPB

24LC32AT-I/SN

24LC512-I/P

SP485REN-L/TR

SP202EEN-L/TR

SP3223EEY-L/TR

SP3078EEN-L/TR

SP3232EET-L/TR

ST16C554DIQ64-F

ADG1208YRUZ-REEL7

SP3243EBEA-L/TR

XR21V1414IM48TR-F

IRF9540NPBF

HF49FD/012-1H11

HFD27/012-S

HF32F/024-HS3(555)

HF49FD/005-1H11

49F seat

HF46F/24-HS1

HFE10-1/12-HST-L2

HF161F-W/12-HT

HFD27/009-S

HFD4/24-S

HFD2/003-S-L2

HF49FD/012-1H11T

HF105F-1/012D-1HS

HF33F/024-HS

HF33F/005-ZS3(555)

HF7520/012-HSTP

HF32FA-G/012-HSL1

HF49FD/005-1H12

HFD4/12

HFD4/5-S1R

HF46F-G/5-HS1

HFD27/005-M

JQX-102F-P/012

HF49FD/024-1H12T

HFD23/012-1ZS(555)

HFD4/3-SR

HF41F/5-HS

HF41F/5-ZS

HFKC/012-ZST(555)

HF115F/012-1HS3

HF165FD-G/24-HY1STF

HFD4/12-SR

HFD27/005-S

HFD27/024-S

HFD4/5-SR