Peripherals and Logic
LCD Drivers
LCD Segment Drivers
- PCA85132U
- PCA85133U
- PCA85134H
- PCA85162T
- PCA85176
- PCA85232U
- PCA85233UG
- PCA85262ATT
- PCA85276ATT
- PCA8530DUG
- PCA8534AH
- PCA8536
- PCA8537
- PCA8543AHL
- PCA8546
- PCA8547
- PCA8551
- PCA8553DTT
- PCA8561
- PCA8576
- PCA8576C
- PCA9620
- PCE85176AUG
- PCF2100CT
- PCF21XXC_FAMILY
- PCF85132U
- PCF85133U
- PCF85134HL
- PCF85162T
- PCF85176
- PCF8532U
- PCF8533U
- PCF8534A
- PCF8534AU
- PCF8536
- PCF8537
- PCF8545
- PCF8551
- PCF8553DTT
- PCF8562TT
- PCF8566
- PCF8576C
- PCF8576D
- PCF8577CT
- PCA9620 evaluation board
- PCF8553 LCD demo board
- PCA8537 and PCF8537 evaluation board
PCF8545

PCF8545: Universal LCD driver for multiplex rates up to 1:8

Overview

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 LCD containing up to eight backplanes, and up to 320 elements. The PCF8545 is compatible with most microcontrollers and communicates via the two-line bidirectional I2C-bus (PCF8545A) or a three line unidirectional SPI-bus (PCF8545B). Communication overheads are minimized using a display RAM with auto-incremented addressing.

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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

Target Applications

Industrial and consumer products

MoreLess

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

Target Applications

Industrial and consumer products

Data Sheets

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