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LCD Segment Drivers
- PCA85132U
- PCA85133U
- PCA85134H
- PCA85162T
- PCA85176
- PCA85232U
- PCA85233UG
- PCA85262ATT
- PCA85276ATT
- PCA8530DUG
- PCA8534AH
- PCA8536
- PCA8537
- PCA8538UG
- PCA8543AHL
- PCA8546
- PCA8547
- PCA8551
- PCA8553DTT
- PCA8561
- PCA8576
- PCA8576C
- PCA9620
- PCE85133AUG
- PCE85176AUG
- PCF2100CT
- PCF21XXC_FAMILY
- PCF85132U
- PCF85133U
- PCF85134HL
- PCF85162T
- PCF85176
- PCF8532U
- PCF8533U
- PCF8534A
- PCF8534AU
- PCF8536
- PCF8537
- PCF8538UG
- PCF8545
- PCF8551
- PCF8553DTT
- PCF8562TT
- PCF8566
- PCF8576C
- PCF8576D
- PCF8577CT
- PCA8538 evaluation board
- PCA9620 evaluation board
- PCA8538 evaluation board
- PCA8537 and PCF8537 evaluation board
- PCF8553 LCD demo board
- PCA8538UG
Overview
The PCA8538 is a fully featured Chip-On-Glass (COG) Liquid Crystal Display (LCD) driver, designed for high-contrast Vertical Alignment (VA) LCD with multiplex rates up to 1:9. It generates the drive signals for a static or multiplexed LCD containing up to 9 backplanes, 102 segments, and up to 918 elements. The PCA8538 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 PCA8538 offers a programmable temperature compensation of the LCD supply voltage. The PCA8538 can be easily controlled by a microcontroller through either the two-line I²C-bus or a four-line bidirectional SPI-bus.
Features
- AEC Q100 grade 2 compliant for automotive applications
- Low power consumption
- Extended operating temperature range from -40 °C to +105 °C
- 102 segments and 9 backplanes allowing to drive:
- up to 114 7-segment numeric characters
- up to 57 14-segment alphanumeric characters
- any graphics of up to 918 elements
- 918-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, 4, 6, 8, or 9 backplane multiplexing
- LCD supply voltage:
- Programmable internal charge pump for on-chip LCD voltage generation up to 5 x 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, duplex, and quadruplex 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
Target 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
Features
- AEC Q100 grade 2 compliant for automotive applications
- Low power consumption
- Extended operating temperature range from -40 °C to +105 °C
- 102 segments and 9 backplanes allowing to drive:
- up to 114 7-segment numeric characters
- up to 57 14-segment alphanumeric characters
- any graphics of up to 918 elements
- 918-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, 4, 6, 8, or 9 backplane multiplexing
- LCD supply voltage:
- Programmable internal charge pump for on-chip LCD voltage generation up to 5 x 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, duplex, and quadruplex 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
Target 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
