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NXP Semiconductors Electronic Components Datasheet

PCF85176 Datasheet

universal LCD driver

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PCF85176
40 x 4 universal LCD driver for low multiplex rates
Rev. 5 — 6 January 2015
Product data sheet
1. General description
The PCF85176 is a peripheral device which interfaces to almost any Liquid Crystal
Display (LCD)1 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. It can be easily
cascaded for larger LCD applications. The PCF85176 is compatible with most
microcontrollers and communicates via the two-line bidirectional I2C-bus. Communication
overheads are minimized by a display RAM with auto-incremented addressing, by
hardware subaddressing, and by display memory switching (static and duplex drive
modes).
For a selection of NXP LCD segment drivers, see Table 24 on page 49.
2. Features and benefits
Single chip LCD controller and driver
Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing
Selectable display bias configuration: static, 12, or 13
Internal LCD bias generation with voltage-follower buffers
40 segment drives:
Up to 20 7-segment numeric characters
Up to 10 14-segment alphanumeric characters
Any graphics of up to 160 segments/elements
40 4-bit RAM for display data storage
Auto-incremented display data loading across device subaddress boundaries
Display memory bank switching in static and duplex drive modes
Versatile blinking modes
Independent supplies possible for LCD and logic voltages
Wide power supply range: from 1.8 V to 5.5 V
Wide logic LCD supply range:
From 2.5 V for low-threshold LCDs
Up to 6.5 V for guest-host LCDs and high-threshold twisted nematic LCDs
Low power consumption
400 kHz I2C-bus interface
May be cascaded for large LCD applications (up to 2560 segments/elements possible)
No external components required
Manufactured in silicon gate CMOS process
1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 21.


NXP Semiconductors Electronic Components Datasheet

PCF85176 Datasheet

universal LCD driver

No Preview Available !

NXP Semiconductors
PCF85176
40 x 4 universal LCD driver for low multiplex rates
3. Ordering information
Table 1. Ordering information
Type number
Package
Name
PCF85176H
TQFP64
PCF85176T
TSSOP56
Description
Version
plastic thin quad flat package, 64 leads; SOT357-1
body 10 10 1.0 mm
plastic thin shrink small outline package, SOT364-1
56 leads; body width 6.1 mm
3.1 Ordering options
Table 2. Ordering options
Product type number Sales item (12NC) Orderable part number
PCF85176H/1
PCF85176T/1
935290063518
935290075118
PCF85176H/1,518
PCF85176T/1,118
IC
Delivery form
revision
1
tape and reel, 13 inch, dry pack
1
tape and reel, 13 inch
4. Marking
Table 3. Marking codes
Product type number
PCF85176H/1
PCF85176T/1
Marking code
PCF85176H
PCF85176T
PCF85176
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 6 January 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
2 of 57


Part Number PCF85176
Description universal LCD driver
Maker NXP
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PCF85176 Datasheet PDF






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