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NXP Semiconductors Electronic Components Datasheet

PCA85276 Datasheet

LCD driver

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PCA85276
Automotive 40 x 4 LCD driver
Rev. 3 — 12 November 2018
Product data sheet
1. General description
The PCA85276 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 PCA85276 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 23 on page 45.
2. Features and benefits
AEC-Q100 grade 2 compliant for automotive applications
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 8.0 V for guest-host LCDs and high-threshold twisted nematic LCDs
Low power consumption
Extended temperature range up to 105 C
400 kHz I2C-bus interface
May be cascaded for large LCD applications (up to 1280 segments/elements possible)
No external components required
1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 21.


NXP Semiconductors Electronic Components Datasheet

PCA85276 Datasheet

LCD driver

No Preview Available !

NXP Semiconductors
PCA85276
Automotive 40 x 4 LCD driver
3. Ordering information
Table 1. Ordering information
Type number
Topside
marking
Package
Name
PCA85276ATT PCA85276TT TSSOP56
Description
plastic thin shrink small outline package, 56 leads;
body width 6.1 mm
Version
SOT364-1
3.1 Ordering options
Table 2. Ordering options
Type number
Orderable
part number
PCA85276ATT PCA85276ATT/AJ
Package
TSSOP56
Packing method
REEL 13" Q1 NDP
Minimum
order quantity
2000
Temperature
Tamb = 40 C to +105 C
4. Block diagram
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Fig 1. Block diagram of PCA85276
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DDD
PCA85276
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 12 November 2018
© NXP B.V. 2018. All rights reserved.
2 of 54


Part Number PCA85276
Description LCD driver
Maker NXP
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PCA85276 Datasheet PDF






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