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HT1618
LED Driver
DESCRIPTION
TM1618 is an LED Controller driven ASIC.
1 segment/grid output lines, MCU digital interface, data latch, High-
voltage LED driver, key scan circuit dare all incorporated into a single chip to build a highly reliable peripheral device for a single chip microcomputer.
Housed in a 18-pin DIP Package, TM1618 pin assignments and application circuit are optimized for easy PCB Layout and cost saving advantages.
FEATURES z
CMOS Technology z Display Modes (5segment, 7 grid to 8segment, 4grid) z Key Scanning (5 x 1Bit) z 8-Step Dimming Circuitry z Serial Interface (CLK, STB, DIN, DOUT) z Oscillatory Manners; RC Oscillation (450KHz ±5%) z Built-in on-r...