HT1632C Datasheet - Holtek Semiconductor

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 using PWM control 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 - 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

APPLICATIONs
• Industrial control indicator
• Digital clock, thermometer, counter, voltmeter
• Instrumentation readouts
• Other consumer application
• LED Displays