Days Microelectronics Chen TEL :0755-61866250-6603 MOBILE: 13410571175 
 TM1642 is a constant with a keyboard scan interface LED (light emitting diode display) dedicated drive control circuit within the integrated MCU digital interface, data latches, LED high-voltage drive, keyboard scanning circuit. The digital LED display IC products with excellent performance, reliable quality. Segment LED products are mainly used in the constant current display driver IC such as home audio keyboard scan display, air conditioning with a large display, color and so on. The digital LED display IC products used SOP28 packages. Keyboard scan IC 
 Second, the characterization of 
 Digital LED display IC with power CMOS process 
 Digital LED display IC variety of display modes (10 segments × 7 位 ~ 13 × 4 bits) 
 Constant current LED driver LED display ICSEG maximum voltage: VDD-1V 
 Keyboard scan the largest difference between IC channel + / - 3% 
 Between ICs + / -6% 
 Digital LED display IC bond scan (10 × 2) 
 IC digital LED display brightness adjustment circuit (adjustable constant current software 8) 
 Keyboard scan IC serial interface (CLK, STB, DIN, DOUT) 
 Keyboard scan IC Oscillator: Internal RC oscillator (450KHz +5%) 
 Keyboard scan IC chip power-on reset circuit 
 Keyboard scan IC package: SOP28 
 TM1642-day micro-factory air digital LED display IC 
 TM1642-day micro-LED display IC 
 Hello, my side is the Chen-day microelectronics, digital LED display IC IC Our factory in Shenzhen, one set of design production and sales, mainly supply LED driver IC, like the TM1803 is mainly used in single exposed light, TM1804 mainly used for point source, TM1809, TM1812 is mainly used in light bar, tube, can be directly replaced by peer 1909,1912, and TM1816 can be directly replaced DM134/135, 5020/5024.TM1808, TM1831 chip can be applied directly without the meteor lights on. TEL: 134 1057 1175 
 Keyboard scanning circuit IC for more information on product information, please point http://blog.sina.com.cn/u/2425517780. 

 TM1616 TM1617 TM1618 TM1618A TM1620 TM1620B TM1624 TM1668 TM1623 TM1627 TM1628 TA6932 TM1626A TM1626B TM1638 TM1629X digital LED display ICTM1639 TM1629 TM1635 TM1636 TM1637 TM1640 TM1641 TM1642 TM1647 74HC164 TM1621 TM1721 TM1722 TM1723 TM1726 TM1727 TM1801 TM1810 TM1802 TM1803 TM1804 TM1805 TM1809 TM1808 TM1831 TM1811 TM1812 TM1806 TM1903 TM1823 TM1822 TM1821 TA1670 TA1669 TA1667 TM1820 TA1666 TM1818 TM1819 TM1816LV TM1816 74HC595 74HC245 74HC138 74HC04 74HC123 TM4953 TM75823 TM75823 TM72131 TM2312 keyboard scan IC TM2313 TM2314 TM9937 TM9936 ADE7755 TM7759 TM7760 TM7752 TM7751 TM7705 TM7706 TM7707 TM7708 TM7711 TM7714 TM7715 TM7709 TA0903B TM7710 

 Our company mainly produces and sells LED / LCD display driver IC lighting and energy metering and management of IC Power Management IC Special IC Series industrial control products such as 100 balance, and more for the car full-color LED display single-color LED light exposed; full color exposed ; LED module; LED pixel lights; LED light source; LED light bar; barrier tube; LED luminous characters DVD cooker electronics industrial landscape lighting, LED display, said