H&M Semiconductor HM1628
HM1628 is an LED Controller driven on a 1/5 to 1/8 duty factor.DESCRIPTION
Replace the new template Increase in the number and history p p eC Ki KLL K K 1、GENERAL DESCRIPTION
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 microcomputer. 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...