PCA8551BTT is an ultra low-power LCD segment driver with 4 backplane- and 36 segment-driver outputs, with either an I�C- (PCA8551A) or an SPI-bus (PCA8551B) interface. It comprises an internal oscillator, bias generation, instruction decoding, and display controller. Features and benefits AEC-Q100 grade 2 compliant for automotive applications Single chip LCD controller and driver Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing Selectable display bias configuration: static, 1⁄2, or 1⁄3 Internal LCD bias generation with buffers 36 segment drives: Up to 18 7-segment numeric characters Up to 9 14-segment alphanumeric characters Any graphics of up to 144 segments/elements Auto-incrementing display data and instruction loading Versatile blinking modes Independent supplies of VLCD and VDD Power supply ranges: 1.8 V to 5.5 V for VLCD 1.8 V to 5.5 V for VDD Ultra low-power consumption 400 kHz I�C-bus interface (PCA8551A) 5 MHz SPI-bus interface (PCA8551B) Internally generated or externally supplied clock signal
Feature
- AEC-Q100 grade 2 compliant for automotive applications
- Single chip LCD controller and driver
- Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing
- Selectable display bias configuration: static, 1⁄2, or 1⁄3
- Internal LCD bias generation with buffers
- 36 segment drives:
- Up to 18 7-segment numeric characters
- Up to 9 14-segment alphanumeric characters
- Any graphics of up to 144 segments/elements
- Auto-incrementing display data and instruction loading
- Versatile blinking modes
- Independent supplies of VLCD and VDD
- Power supply ranges:
- 1.8 V to 5.5 V for VLCD
- 1.8 V to 5.5 V for VDD
- Ultra low-power consumption
- 400 kHz I²C-bus interface (PCA8551A)
- 5 MHz SPI-bus interface (PCA8551B)
- Internally generated or externally supplied clock signal
Target Applications
- Displays integrated
- in a car instrument cluster
- in a control indicator
- Battery operated applications
- Healthcare devices
