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PCA85371 PDF预览

PCA85371

更新时间: 2024-11-06 01:18:23
品牌 Logo 应用领域
恩智浦 - NXP /
页数 文件大小 规格书
82页 2918K
描述
Automotive LCD driver for multiplex rates up to 1:8

PCA85371 数据手册

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PCA8537  
Automotive LCD driver for multiplex rates up to 1:8  
Rev. 1 — 31 May 2012  
Product data sheet  
1. General description  
The PCA8537 is a fully featured Liquid Crystal Display (LCD)1 driver, 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 PCA8537 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 PCA8537 offers a  
programmable temperature compensation of the LCD supply voltage. The PCA8537 can  
be easily connected to a microcontroller by either the two-line I2C-bus (PCA8537AH) or a  
three-line bidirectional SPI-bus (PCA8537BH).  
2. Features and benefits  
AEC Q100 compliant for automotive applications.  
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 (PCA8537AH)  
5 MHz SPI-bus interface (PCA8537BH)  
Programmable temperature compensation of VLCD in 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 VLCD  
Manufactured in silicon gate CMOS process  
1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 18.  

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