OM4068 Philips Semiconductors, OM4068 Datasheet - Page 2

• Manufacturer Part Number: OM4068
• Description: LCD driver for low multiplex rates
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
ORDERING INFORMATION
Notes
1. Gull Wing package.
2. For details see Chapter “Bonding pad locations”.
1998 Jun 18
OM4068H
OM4068P
OM4068U/5
OM4068U
Single-chip LCD controller/driver
Static/duplex/triplex drive modes with up to
32/64/96 LCD segments drive capability per device
Selectable backplane drive configuration: static or
2 or 3 backplane multiplexing
Selectable display bias configuration drive: static,
1
32 segment drivers
Serial data input (word length 32 to 96 bits)
On-chip generation of intermediate LCD bias voltages
2 MHz fast serial bus interface
CMOS compatible
Compatible with any 4-bit, 8-bit or 16-bit
microprocessors/microcontrollers
May be cascaded for large LCD applications
Logic supply voltage range (V
Display supply voltage range (V
3.5 to 6.5 V
Low power consumption, suitable for battery operated
systems
No external components needed by the oscillator
Manufactured in silicon gate CMOS process.
LCD driver for low multiplex rates
3
TYPE NUMBER
(1)
(2)
QFP44
NAME
DIP40
tray
die
DD
LCD
V
SS
V
) of 2.5 to 5.5 V
plastic quad flat package; 44 leads (lead length 1.3 mm);
body 10
plastic dual in-line package; 40 leads (600 mil)
unsawn wafer
chip in tray
SS
) of
10
1
2
or
1.75 mm
2
APPLICATIONS
GENERAL DESCRIPTION
The OM4068 is a low-power CMOS LCD driver, designed
to drive Liquid Crystal Displays (LCDs) with low multiplex
rates. It generates the drive signals for any static or
multiplexed LCD containing up to three backplanes and up
to 32 segment lines and can be easily cascaded for larger
LCD applications. All necessary functions for the display
are provided in a single chip, including on-chip generation
of LCD bias voltages, resulting in a minimum of external
components and lower power consumption. A 3-line bus
structure enables serial data transfer with most
microprocessors/microcontrollers. All inputs are CMOS
compatible.
Telecom equipment
Portable instruments
Alarm systems
Automotive equipment.
DESCRIPTION
PACKAGE
Product specification
OM4068
SOT307-2
SOT129-1
VERSION