OM4068P PDF даташит
Спецификация OM4068P изготовлена «NXP Semiconductors» и имеет функцию, называемую «LCD driver for low multiplex rates». |
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Детали детали
Номер произв | OM4068P |
Описание | LCD driver for low multiplex rates |
Производители | NXP Semiconductors |
логотип |
28 Pages
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INTEGRATED CIRCUITS
DATA SHEET
OM4068
LCD driver for low multiplex rates
Product specification
File under Integrated Circuits, IC12
1998 Jun 18
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Philips Semiconductors
LCD driver for low multiplex rates
Product specification
OM4068
FEATURES
• 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, 1⁄2 or
1⁄3
• 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 (VDD − VSS) of 2.5 to 5.5 V
• Display supply voltage range (VLCD − VSS) of
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.
APPLICATIONS
• Telecom equipment
• Portable instruments
• Alarm systems
• Automotive equipment.
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.
ORDERING INFORMATION
TYPE NUMBER
OM4068H(1)
OM4068P
OM4068U/5(2)
OM4068U
NAME
QFP44
DIP40
die
tray
PACKAGE
DESCRIPTION
plastic quad flat package; 44 leads (lead length 1.3 mm);
body 10 × 10 × 1.75 mm
plastic dual in-line package; 40 leads (600 mil)
unsawn wafer
chip in tray
Notes
1. Gull Wing package.
2. For details see Chapter “Bonding pad locations”.
VERSION
SOT307-2
SOT129-1
−
−
1998 Jun 18
2
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Philips Semiconductors
LCD driver for low multiplex rates
BLOCK DIAGRAM
Product specification
OM4068
handbook, full pagewidth
M0
M1
VLCD
BP1 BP2 BP3
SEG1 to SEG32(1)
BACKPLANE OUTPUTS
4
LCD VOLTAGE
SELECTOR
(CONTROL LOGIC)
4
BIAS
VOLTAGE
GENERATOR
4
POWER-ON
RESET
32
DISPLAY SEGMENT OUTPUTS
DISPLAY LATCH
SHIFT REGISTER
OM4068
TIMING
GENERATOR
OSCILLATOR
SCE
SCLK
SDIN
SDOUT
VSS VDD
MBK817
(1) SEG1, SEG6, SEG15 and SEG25 are not available in DIP40 package.
Fig.1 Block diagram.
1998 Jun 18
3
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Номер в каталоге | Описание | Производители |
OM4068 | LCD driver for low multiplex rates | NXP Semiconductors |
OM4068H | LCD driver for low multiplex rates | NXP Semiconductors |
OM4068P | LCD driver for low multiplex rates | NXP Semiconductors |
OM4068U | LCD driver for low multiplex rates | NXP Semiconductors |
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