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NXP Semiconductors Electronic Components Datasheet

PCA85232 Datasheet

LCD driver

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PCA85232
LCD driver for low multiplex rates
Rev. 4 — 8 April 2015
Product data sheet
1. General description
The PCA85232 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 160 segments. It can easily
be cascaded for larger LCD applications. The PCA85232 is compatible with most
microcontrollers and communicates via the two-line bidirectional I2C-bus. Communication
overheads are minimized by a display RAM with auto-incremental addressing, by
hardware subaddressing, and by display memory switching (static and duplex drive
modes).
For a selection of NXP LCD segment drivers, see Table 29 on page 56.
2. Features and benefits
AEC-Q100 compliant for automotive applications
Single-chip LCD controller and driver for up to 640 elements
Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing
160 segment drives:
Up to 80 7-segment numeric characters
Up to 40 14-segment alphanumeric characters
Any graphics of up to 640 elements
May be cascaded for large LCD applications (up to 5120 elements possible)
160 4-bit RAM for display data storage
Software programmable frame frequency in the range of 117 Hz to 176 Hz; factory
calibrated
Wide LCD supply range: from 1.8 V for low threshold LCDs and up to 8.0 V for
guest-host LCDs and high threshold (automobile) twisted nematic LCDs
Internal LCD bias generation with voltage-follower buffers
Selectable display bias configuration: static, 12, or 13
Wide power supply range: from 1.8 V to 5.5 V
LCD and logic supplies may be separated
Low power consumption, typical: IDD = 4 A, IDD(LCD) = 65 A
400 kHz I2C-bus interface
Auto-incremental display data loading across device subaddress boundaries
Versatile blinking modes
Compatible with Chip-On-Glass (COG) technology
No external components required
1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 19 on page 58.


NXP Semiconductors Electronic Components Datasheet

PCA85232 Datasheet

LCD driver

No Preview Available !

NXP Semiconductors
PCA85232
LCD driver for low multiplex rates
Two sets of backplane outputs for optimal COG configurations of the application
3. Ordering information
Table 1. Ordering information
Type number
Package
Name
PCA85232U
bare die
Description
197 bumps; 6.5 1.16 0.40 mm
Version
PCA85232U
3.1 Ordering options
Table 2. Ordering options
Product type number Orderable part number Sales item
(12NC)
Delivery form
PCA85232U/2DA/Q1 PCA85232U/2DA/Q1,0 935291553026 chips with bumps in tray
4. Marking
IC
revision
1
Table 3. Marking codes
Product type number
PCA85232U
Marking code
PC85132/232-1
PCA85232
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 8 April 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
2 of 65


Part Number PCA85232
Description LCD driver
Maker NXP
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PCA85232 Datasheet PDF






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