HT1632 -- 32x8 & 24x16 LED Driver

General Description

The HT1632 is a memory mapping LED display controller/driver, which can select a number of out bits and commons. These are 32 out bits & 8 commons and 24 out bits & 16 commons. The device supports 16-gradation LEDs for each out line usingPWMcontrol with software instructions. A serial interface is conveniently provided for the command mode and data mode. Only three or four lines are required for the interface between the host controller and the HT1632. The display can be extended by cascading the HT1632 for wider applications.

Features

Operating voltage: 2.4V~5.5V
Multiple LED display - 32 out bits/8 commons and 24 out bits/16 commons
Integrated display RAM - select 32 out bits &
8 commons for 64x4 display RAM, or select 24
outbits & 16 commons for 96x4 display RAM
16-level PWM brightness control
Integrated 256kHz RC oscillator
Serial MCU interface - CS, RD, WR, DATA
Data mode & command mode instruction
Cascading function for extended applications
Selectable NMOS open drain output driver and
PMOS open drain output driver for commons
52-pin QFP package

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