HM1628 Datasheet | H&M Semiconductor

HM1628-AX-BJ-67EN HM1628 LED Driver IC Product Specification Specification Revision History ： Version 2010-01-A 2012-01-B1 Data 2010-01 2012-01 Description Replace the new template Increase in the number and history p p e C Ki 1、GENERAL DESCRIPTION HM1628 is an LED Controller driven on a 1/5 to 1/8 duty factor. 10 segment output lines, 4 grid output lines, 3 segment/ grid output lines, one display memory, control circuit, key scan circuit are all incorporated into a single chip to build a highly reliable peripheral device for a single chip microputer. Serial data is fed to HM1628 via a three-line serial interface. Housed in a 28 pins SOP Package, HM1628 pin assignments and application circuit are optimized for easy PCB Layout and cost saving advantages. Features - CMOS technology - Low power consumption - Multiple display modes (10 segment, 7 grid to 13 segment, 4 grid) - Key scanning (10 x 2 Matrix) - 8-step dimming circuitry - Serial interface for clock, data input, data output, strobe pins - Built-in RC oscillator: （450KHz±5%） - Available in 28 pins, SOP 2、BLOCK DIAGRAM AND PIN DESCRIPTION 2.1、PIN CONFIGURATIONS NC 1 DIO 2 CLK 3 STB 4 K1 5 K2 6 VDD 7 SEG1/KS1 8 SEG2/KS2 9 SEG3/KS3 10 SEG4/KS4 11 SEG5/KS5 12 SEG6/KS6 13 SEG7/KS7 14 28 GND 27 GRID1 26 GRID2 25 GND 24 GRID3 23 GRID4 22 GND 21 VDD 20 SEG14/GRID5 19 SEG13/GRID6 18 SEG12/GRID7 17 SEG10/KS10 16 SEG9/KS9 15 SEG8/KS8 p e C p Ki K 2.2、PIN DESCRIPTION Pin No....