PCA8536 Datasheet, PDF (1/2 Pages) NXP Semiconductors – I2C/SPI LCD and PWM LED controller for industrial and automotive applications

NXP LCD driver
PCA8536 and PCF8536
I²C/SPI LCD and PWM LED controller for
industrial and automotive applications
This advanced, highly integrated LCD controller drives up to eight backplanes, up to 44 segments,
and up to 320 elements, and provides an on-chip, 6-channel PWM controller for LED illumination.
Compatible with most MCUs, it simplifies design, reduces power, and minimizes communication
overhead.
Key features
`` Single-chip 320 segment LCD controller and driver
`` 6-channel PWM generator for backlight LED illumination
`` AEC Q100 compliant for automotive applications (PCA8536)
`` Selectable display bias configuration
`` Wide digital supply voltage range: 1.8 to 5.5 V
`` Wide LCD supply voltage range: 2.5 to 9.0 V
`` Choice of serial interface: I<sup>2</sup>C (PCx8536AT) or SPI
(PCx8536BT)
`` Low power consumption
`` Operating temp up to 85 °C (PCF8536) or 95 °C (PCA8536)
`` Silicon gate CMOS process
Applications
`` Industrial version (PCF8536)
- White goods
- Consumer products
`` Automotive version (PCA8536)
- Car radio
- Climate control
- Dashboard display
The NXP PCx8536 is a peripheral device, equipped with `
a low-power serial interface (I<sup>2</sup>C- or SPI-bus), that controls and
drives almost any LCD display with multiplex rates up to 1:8.
The device is available in two types, one for industrial
(PCF8536) and one for automotive applications (PCA8536). `
The automotive type supports an extended operating
temperature range up to 95 °C, and is AEC Q100 compliant.
Both types are also compatible with most microcontrollers and
communicate via standard serial interfaces. The AT versions
use the two-line bidirectional I²C-bus (400 kHz), while the BT
versions use the three-line unidirectional SPI-bus (5 MHz).
Communication overheads are minimized by using a 320-bit
display RAM with auto-incremented addressing.
An on-chip PWM controller for LED backlight illumination `
is included. The PWM has six outputs with 7-bit resolution `
(128 steps) ideal to drive external transistors. Up to six
independent channels can be configured. The 128 levels `