Datasheet > PCF8537BH

PCF8537BH

更新时间： 2024-09-21 12:12:39

品牌	Logo	应用领域
恩智浦 - NXP		驱动器
页数	文件大小	规格书
82页	2925K
描述
Industrial LCD driver for multiplex rates up to 1:8

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PCF8537BH 数据手册

PCF8537

Industrial LCD driver for multiplex rates up to 1:8

Rev. 1 — 31 May 2012

Product data sheet

1. General description

The PCF8537 is a fully featured Liquid Crystal Display (LCD)¹driver, specifically designed

for high-contrast Vertical Alignment (VA) LCD with multiplex rates up to 1:8. It generates

the drive signals for any static or multiplexed LCD containing up to eight backplanes,

46 segments, and up to 352 elements. The PCF8537 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 PCF8537 offers a

programmable temperature compensation of the LCD supply voltage. The PCF8537 can

be easily connected to a microcontroller by either the two-line I²C-bus (PCF8537AH) or a

three-line bidirectional SPI-bus (PCF8537BH).

2. Features and benefits

 Low-power single-chip LCD controller and driver

 352 elements allowing to drive:

 up to 44 7-segment alphanumeric characters

 up to 22 14-segment alphanumeric characters

 Selectable backplane drive configuration: static, 2, 4, 6, or 8 backplane multiplexing

 Software programmable internal charge pump for on-chip LCD voltage generation up

to 9 V with internal capacitors

 400 kHz I²C-bus interface (PCF8537AH)

 5 MHz SPI-bus interface (PCF8537BH)

 Programmable temperature compensation of V_LCDin four regions

 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

 Display memory bank switching in static, duplex, and quadruplex drive modes

 352-bit RAM for display data storage

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

factory calibrated

 Integrated temperature sensor with temperature readout

 On chip calibration of internal oscillator frequency and V_LCD

 Manufactured in silicon gate CMOS process

1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 17.

12 3 4 5 6 7...82

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