This part is a kind of semiconductor called TM1722.

Function of this product has LCD drive control dedicated circuit.

Manufacturers : Titan Micro

Image and pinout :

Some of the text within the PDF file :

3 LED IC ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ © © © 7.1. MSB LSB 7.2. © 7.3. 7.4. MSB LSB © 01H 0C3H LED 45H 40H 0C0H PWM 0FH 97H 0C1H © LED1 LED2 1/8T 1/16T T=500US 10.1. CL K D IO STB Command1 Command2 Command3 D ata1 D ata2 ``````` D ata n Command4 10.2. © CL K D IO STB Command1 Command2 Command3 D ata1 Command4 D ata2 ``````` Command5 © 0C1H 00H … 44H ) 0CH ( 97H / © 1 00H 1 40H 0C0H NO / 97H © VCC VCC 550 550 550 10K 10K 10K 0.1uF 100uF LED LED LED 100P 100P 100P GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 COM0 COM1 COM2 COM3 H0 L0 H1 L1 H2 L2 H3 L3 H4 L4 H5 L5 0 1 2 3 4 5 LCD © © © z © [ ... ]

TM1722 PDF Datasheet Download