HT1632C -- 32x8 & 24x16 LED Driver

General Description
The HT1632C is a memory mapping LED display controller/driver, which can select a number of ROW and commons. These are 32 ROW & 8 commons and 24 ROW & 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 HT1632C. The display can be extended by cascading the HT1632C for wider applications.

Features
Operating voltage: 2.4V~5.5V
Multiple LED display - 32 ROW /8 COM and
24 ROW & 16 COM
Integrated display RAM - select 32 ROW &
8 COM for 64x4 display RAM, or select
24 ROW & 16 COM for 96x4 display RAM
16-level PWM brightness control
Integrated 256kHz RC oscillator
Serial MCU interface - CSB, RDB, WRB, 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