PCF8801 View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
'PCF8801' PDF : 20 Pages View PDF
Philips Semiconductors
LCD driver for 140 × 2 segments
Product speciï¬cation
PCF8801
FEATURES
• Single-chip LCD controller/driver
• Fixed backplane multiplexing at a rate of 1 : 2
• Internal LCD bias generation (0.5VDD)
• 140 segment outputs configured to drive seven
40-segment characters
• On-chip oscillator with one external resistor
• Wide power supply range (2.7 V up to 5.5 V)
• Low power consumption
• Compatible with most microprocessors/microcontrollers
• 1 MHz serial bus interface (280-bit shift register)
• Easily cascaded for large LCD applications (two
cascade directions possible)
• Compatible with chip-on-glass technology
• Manufactured by silicon gate CMOS process.
The chip can easily be cascaded for larger LCD
applications, and the direction of the information flow in the
cascade can be selected. The PCF8801 is compatible with
most microprocessors/microcontrollers and
communicates via a serial bus interface comprising a
280-bit shift register.
The outputs are multiplexed by a clock signal generated by
the internal oscillator which needs only one external
resistor. Cascade applications only require the clock signal
to be generated by the first device with the internal
oscillators in the other devices disabled.
The PCF8801 is designed for chip-on-glass applications.
It has a narrow package with raised points (bumps) for
easy assembly on to LCD glass.
GENERAL DESCRIPTION
The PCF8801 is a peripheral device which interfaces a
multiplexed Liquid Crystal Display (LCD) having two
backplanes and up to 140 segments. It generates drive
signals at a multiplex rate of 1 : 2 allowing seven
40-segment (5 x 8) characters to be driven.
ORDERING INFORMATION
TYPE
NUMBER
PCF8801U
NAME
−
PACKAGE
DESCRIPTION
chip with bumps in tray
VERSION
−
2000 Feb 04
2
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