General description
The PCA8530 is a fully featured Chip-On-Glass (COG)1 Liquid Crystal Display (LCD)
driver, designed for high-contrast Vertical Alignment (VA) LCD with multiplex rates up to
1:4. It generates the drive signals for a static or multiplexed LCD containing up to
4 backplane, 102 segment outputs, and up to 408 segments/elements. The PCA8530
features an internal charge pump with internal capacitors for on-chip generation of the
LCD driving voltage. To ensure an optimal and stable contrast over the full temperature
range, the PCA8530 offers a programmable temperature compensation of the LCD supply
voltage. The PCA8530 can be easily controlled by a microcontroller through either the
two-line I2C-bus or a four-line bidirectional SPI-bus.
For a selection of NXP LCD segment drivers, see Table 58 on page 93.

Features and benefits
 AEC Q100 grade 2 compliant for automotive applications
 Low power consumption
 Extended operating temperature range from 40 C to +105 C
 102 segments and 4 backplanes allowing to drive:
 up to 51 7-segment numeric characters
 up to 25 14-segment alphanumeric characters
 any graphics of up to 408 segments/elements
 408-bit RAM for display data storage
 Two sets of backplane outputs providing higher flexibility for optimal COG layout
configurations
 Up to 4 chips can be cascaded to drive larger displays with an internally generated or
externally supplied VLCD
 Selectable backplane drive configuration: static, 2, or 4 backplane multiplexing
 LCD supply voltage
 Programmable internal charge pump for on-chip LCD voltage generation up to
5  VDD2
 External LCD voltage supply possible as well
 Selectable 400 kHz I2C-bus or 3 MHz SPI-bus interface
 Selectable linear temperature compensation of VLCD
 Selectable display bias configuration
 Wide range for digital and analog power supply: from 2.5 V to 5.5 V
 Wide LCD voltage range from 4.0 V for low threshold LCDs up to 12.0 V for high
threshold twisted nematic and Vertical Alignment (VA) displays
 Display memory bank switching in static and 1:2 multiplex drive modes
 Programmable frame frequency in the range of 45 Hz to 300 Hz; factory calibrated
with a tolerance of 3 Hz (at 80 Hz)
 Selectable inversion scheme for LCD driving waveforms: frame or n-line inversion
 Diagnostic features for status monitoring
 Integrated temperature sensor with temperature readout
 On chip calibration of internal oscillator frequency and VLCD
 Laser marking at the back-side of the die for traceability of the lot number, wafer
number, and die position on the wafer

Applications
 Automotive
 Instrument clusters
 Climate control
 Car entertainment
 Car radio
 Industrial
 Consumer
 Medical and health care
 Measuring equipment
 Machine control systems
 Information boards
 White goods
 General-purpose display modules