NXP Semiconductors PCA8547
The PCA8547 is a fully featured Liquid Crystal Display (LCD)1 driver, specifically designed for high-contrast Vertical Alignment (VA) LCD with multiplex rates up to 1:4. It generates the drive signals for any static or multiplexed LCD containing up to four backplanes, 44 segments, and up to 176 elements. The PCA8547 features an internal charge pump with internal capacitors for on-chip generation of the LCD driving voltage.FEATURES AND BENEFITS
● AEC Q100 compliant for automotive applications.● Low-power single-chip LCD controller and driver
● 176 elements allowing to drive:
● up to 22 7-segment alphanumeric characters
● up to 11 14-segment alphanumeric characters
● Selectable backplane drive configuration: static, 2, or 4 backplane multiplexing
● Software programmable internal charge pump for on-chip LCD voltage generation up to 9 V with internal capacitors
● 400 kHz I2C-bus interface (PCA8547A)
● 5 MHz SPI-bus interface (PCA8547B)
● Programmable temperature compensation of VLCD with both, negative and positive slopes in four temperature regions
● 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
● On-chip RAM for display data storage arranged in two banks
● Display memory bank switching
● Programmable frame frequency in the range of 60 Hz to...