NXP LCD driver
PCA8536 and PCF8536
PCA8536
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
The`NXP`PCx8536`is`a`peripheral`device,`equipped`with``
a`low-power`serial`interface`(I2C-`or`SPI-bus),`that`controls`and`
drives`almost`any`LCD`display`with`multiplex`rates`up`to`1:8.`
``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:`I2C`(PCx8536AT)`or`SPI`
(PCx8536BT)`
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.`
``Low`power`consumption
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.
``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
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``
-`Climate`control
-`Dashboard`display