PCF8576 Philips Semiconductors, PCF8576 Datasheet - Page 3

• Manufacturer Part Number: PCF8576
• Description: Universal LCD driver for low multiplex rates
• Manufacturer: Philips Semiconductors

Philips Semiconductors
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3
1998 Feb 06
PCF8576T
PCF8576U
PCF8576U/2
PCF8576U/5
PCF8576U/7
PCF8576U/10
PCF8576U/12
TYPE NUMBER
Single-chip LCD controller/driver
Selectable backplane drive configuration: static or 2/3/4
backplane multiplexing
Selectable display bias configuration: static,
Internal LCD bias generation with voltage-follower
buffers
40 segment drives: up to twenty 8-segment numeric
characters; up to ten 15-segment alphanumeric
characters; or any graphics of up to 160 elements
40
Auto-incremented display data loading across device
subaddress boundaries
Display memory bank switching in static and duplex
drive modes
Versatile blinking modes
LCD and logic supplies may be separated
Wide power supply range: from 2 V for low-threshold
LCDs and up to 9 V for guest-host LCDs and
high-threshold (automobile) twisted nematic LCDs
Low power consumption
Power-saving mode for extremely low power
consumption in battery-operated and telephone
applications
I
TTL/CMOS compatible
Universal LCD driver for low multiplex
rates
2
C-bus interface
FEATURES
ORDERING INFORMATION
4-bit RAM for display data storage
VSO56
NAME
FFC
FFC
plastic very small outline package; 56 leads
chip in tray
chip with bumps in tray
unsawn wafer
chip with bumps on tape
chip on film frame carrier (FFC)
chip with bumps on film frame carrier (FFC)
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2
or
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2
The PCF8576 is a peripheral device which interfaces to
almost any Liquid Crystal Display (LCD) with low multiplex
rates. It generates the drive signals for any static or
multiplexed LCD containing up to four backplanes and up
to 40 segments and can easily be cascaded for larger LCD
applications. The PCF8576 is compatible with most
microprocessors/microcontrollers and communicates via a
two-line bidirectional I
are minimized by a display RAM with auto-incremented
addressing, by hardware subaddressing and by display
memory switching (static and duplex drive modes).
DESCRIPTION
Compatible with any 4-bit, 8-bit or 16-bit
microprocessors/microcontrollers
May be cascaded for large LCD applications (up to
2560 segments possible)
Cascadable with 24-segment LCD driver PCF8566
Optimized pinning for plane wiring in both single and
multiple PCF8576 applications
Space-saving 56-lead plastic very small outline package
(VSO56)
Very low external component count (at most one
resistor, even in multiple device applications)
Compatible with chip-on-glass technology
Manufactured in silicon gate CMOS process.
PACKAGE
GENERAL DESCRIPTION
2
C-bus. Communication overheads
Product specification
PCF8576
SOT190-1
VERSION