This part is a kind of semiconductor called TM1620B.

Function of this product has LED.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

• • • • • • • • 1 2 3 4 5 6 7 8 9 10 GND DIO CLK STB K2 VDD SEG1/KS1 SEG2/KS2 SEG3/KS3 SEG4/KS4 GR1 GR2 GND GR3 GR4 SEG14/GR5 SEG13/GR6 SEG12/GR7 SEG6/KS6 SEG5/KS5 20 19 18 17 16 15 14 13 12 11 -1- VCC 10K DIO CT GND LED -2- KS1 KS2 KS3 KS4 KS5 K2 4 KS6 -3- -4- -5- CLK DIO STB 1 B0 2 B1 3 B2 4 B3 5 B4 6 B5 7 B6 8 B7 CLK DIO STB 1 B0 2 B1 `````` `````` 8 B7 B0 B1 B2 B3 Twait SEG1 SEG2 SEG3 SEG3 SEG4 SEG5 SEG6 SEG6 SEG12 SEG12 GRID1 SEG4 SEG5 SEG1 SEG2 1 2 3 4 5 6 7 a b c d e f g DPY a f e g d b c GRID1 [LEDgn] Free Da [ ... ]

TM1620B PDF Datasheet Download