PCF8536
Overview
The PCF8536 is a peripheral device which interfaces to almost any Liquid Crystal Display (LCD)1 with low multiplex rates. It generates the drive signals for any multiplexed LCD containing up to eight backplanes, up to 44 segments, and up to 320 elements.
- Single-chip 320 segment LCD controller and driver with 6 channel PWM generator
- 6 channel PWM generator for backlight LED illumination
- Selectable display bias configuration
- Wide range for digital power supply: from 1.8 V to 5.5 V
- Wide LCD supply range: from 2.5 V for low threshold LCDs and up to 9.0 V for high threshold twisted nematic LCDs
- Low power consumption
- Selectable backplane drive configuration: 4, 6, or 8 backplane multiplexing
- LCD and logic supplies may be separated
- 320-bit RAM for display data storage
- 6 PWM outputs with a 7-bit resolution (128 steps) and drivers for external transistors
