Datasheet > PCF8536_11

PCF8536_11

更新时间： 2024-11-18 12:12:39

品牌	Logo	应用领域
恩智浦 - NXP		驱动
页数	文件大小	规格书
74页	2560K
描述
Universal LCD driver for low multiplex rates including a 6 channel PWM generator

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PCF8536_11 数据手册

PCF8536

Universal LCD driver for low multiplex rates including a 6

channel PWM generator

Rev. 2 — 21 February 2012

Product data sheet

1. General description

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

(LCD)¹with 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

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

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