PCF8534A - Universal LCD driver for low multiplex rates - NXP Semiconductors
Features
Single-chip LCD controller and driver
Selectable backplane drive con?gurations: static or 2, 3 or 4 backplane multiplexing
60 segment drives:
30 8-segment numeric characters
16 15-segment alphanumeric characters
Any graphics of up to 240 elements
Cascading supported for larger applications
60 × 4-bit display data storage RAM
Wide LCD supply range: from 2.5 V for low threshold LCDs up to 6.5 V for guest-host
LCDs and high threshold (automobile) twisted nematic LCDs
Internal LCD bias generation with voltage follower buffers
Selectable display bias con?gurations: static, 1⁄
2 or 1⁄3
Wide logic power supply range: from 1.8 V to 5.5 V
LCD and logic supplies may be separated
Low power consumption
400 kHz I2
C-bus interface
Compatible with any microprocessors or microcontrollers
No external components
Display memory bank switching in static and duplex drive modes
Auto-incremented display data loading
Versatile blinking modes
Silicon gate CMOS process
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