PCF8536AT datasheet(1/74 Pages) NXP

部件名	PCF8536AT

功能描述	Universal LCD driver for low multiplex rates including a 6 channel PWM generator

PDF	74 Pages

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制造商	NXP [NXP Semiconductors]

网页	http://www.nxp.com

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1.

General description

The PCF8536 is a peripheral device which interfaces to almost any Liquid Crystal Display

(LCD)1 with low multiplex rates. It generates the drive signals for any multiplexed LCD

containing up to eight backplanes, up to 44 segments, and up to 320 elements. The

PCF8536 is compatible with most microcontrollers and communicates via the two-line

bidirectional I2C-bus (PCF8536AT) or a three line unidirectional SPI-bus (PCF8536BT).

Communication overheads are minimized using a display RAM with auto-incremented

addressing.

The PCF8536 features an on-chip PWM controller for LED illumination. Up to six

independent channels can be configured. Each channel has 128 levels allowing the

possibility for two RGB controllers. Each of them provides over 2 million colors. Each

channel can also be used for static drive.

2.

Features and benefits

 Single-chip 320 segment LCD controller and driver with 6 channel PWM generator

 6 channel PWM generator for backlight LED illumination

 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

 Low power consumption

 Selectable backplane drive configuration: 4, 6, or 8 backplane multiplexing

 LCD and logic supplies may be separated

 320-bit RAM for display data storage

 6 PWM outputs with a 7-bit resolution (128 steps) and drivers for external transistors

 Programmable PWM frame frequency to avoid LCD backlight flickering

 400 kHz I2C-bus interface (PCF8536AT)

 5 MHz SPI-bus interface (PCF8536BT)

 Programmable frame frequency in the range of 60 Hz to 300 Hz in steps of 10 Hz;

factory calibrated

PCF8536

Universal LCD driver for low multiplex rates including a 6

channel PWM generator

Rev. 2 — 21 February 2012

Product data sheet

1.

The definition of the abbreviations and acronyms used in this data sheet can be found in Section 19.

类似零件编号 - PCF8536AT

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