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PCF8820 - 67 x 101 Grey-scale/ECB colour dot matrix LCD driver

General Description

ORDERING INFORMATION BLOCK DIAGRAM PINNING Pad configuration Pad functions Row driver outputs Column driver outputs Ground supply Supply voltage Voltage multiplier output Voltage multiplier regulation input Supply voltage of bias voltage generator LCD intermediate bias voltages Serial data input Serial data output Serial clock input Slave address inputs Oscillator signal input External reset input Test pads FUNCTIONAL DESCRIPTION Oscillator I2C-bus interface controller Input filters Display Data RAM (DDRAM) Timing generator Address counter Display address counter Command decoder Column driver outputs Row driver outputs Bias voltage generator High voltage generator Temperature compensation Temperature sensor LCD driver waveforms DDRAM to display mapping DDRAM addressing 7.18 7.18.1 7.18.2 7.18.3 7.18.4 7.18.5 7.18.6 7.18.7 8 8.1 8.1.1 8.1.2 8.1.3 8.1.4 8.1.5 8.1.6 8.1.7 8.1.8 8.1.9 8.1.10 8.2 9 10 11 12 13 13.1 13.2 13.3 13.4 13.5 13.6 14 15 16 17 18 19 20 21 I2C-bus interface Bit transfer START and STOP conditions System configuration Acknowledge I2C-bus protocol Command decoder Display data byte INSTRUCTIONS PCF8820 Description of the bit functions Power-down mode Partial screen mode Y-address of DDRAM Bias system High voltage generator configuration Temperature read-out VLCD control register Grey-scale register and grey-scale level Direct drive mode Frame frequency calibration Reset and initialization LIMITING VALUES HANDLING DC CHARACTERISTICS TIMING APPLICATION

Overview

INTEGRATED CIRCUITS DATA SHEET PCF8820 67 × 101 Grey-scale/ECB colour dot matrix LCD driver Product specification File under Integrated Circuits, IC12 2000 Dec 07 Philips Semiconductors Product specification 67 × 101 Grey-scale/ECB colour dot matrix LCD driver CONTENTS 1 2 3 4 5 6 6.1 6.2 6.2.1 6.2.2 6.2.3 6.2.4 6.2.5 6.2.6 6.2.7 6.2.8 6.2.9 6.2.10 6.2.11 6.2.12 6.2.13 6.2.14 6.2.15 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 7.11 7.12 7.13 7.14 7.15 7.16 7.