PCF8545ATT中文资料Universal LCD driver for multiplex rates up to 1:8数据手册恩XP规格书

描述 Description

The PCF8545 is a peripheral device which interfaces to almost any Liquid Crystal Display(LCD) with low multiplex rates. It generates the drive signals for any multiplexed LCDcontaining up to eight backplanes, and up to 320 elements. The PCF8545 is compatiblewith most microcontrollers and communicates via the two-line bidirectional I2C-bus(PCF8545A) or a three line unidirectional SPI-bus (PCF8545B). Communicationoverheads are minimized using a display RAM with auto-incremented addressing.

特性 Features

Single-chip 320 elements LCD controller and driver
Wide range for digital power supply: from 1.8 V to 5.5 V
LCD supply range from 2.5 V up to 5.5 V
LCD and logic supplies may be separated
Low power consumption
Selectable backplane drive configuration: 4, 6, or 8 backplane multiplexing
Selectable display bias configuration
320-bit RAM for display data storage
400 kHz I²C-bus interface (PCF8545A)
5 MHz SPI-bus interface (PCF8545B)
Programmable frame frequency in the range of 60 Hz to 300 Hz in steps of 10 Hz;factory calibrated
320 segments driven allowing:up to 40 7-segment alphanumeric characters
up to 20 14-segment alphanumeric characters
any graphics of up to 320 elements
Manufactured in silicon gate CMOS process

应用 Application

Industrial and consumer products