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NXP Semiconductors Electronic Components Datasheet

PCF85132 Datasheet

LCD driver

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PCF85132
LCD driver for low multiplex rates
Rev. 1 — 23 November 2010
Product data sheet
1. General description
The PCF85132 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 be
easily cascaded for larger LCD applications. The PCF85132 is compatible with most
microprocessors or microcontrollers and communicates via a 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).
2. Features and benefits
„ 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 eighty 7-segment numeric characters
‹ Up to forty 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 steps of 5 Hz in the range of 60 Hz to
90 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 μA, IDD(LCD) = 30 μA
„ 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
„ Two sets of backplane outputs for optimal COG configurations of the application
1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 15 on page 50.
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NXP Semiconductors Electronic Components Datasheet

PCF85132 Datasheet

LCD driver

No Preview Available !

NXP Semiconductors
PCF85132
LCD driver for low multiplex rates
3. Ordering information
Table 1. Ordering information
Type number Package
Name
Description
Delivery form
Version
PCF85132U
PCF85132U
bare die; 197 bumps; chips with bumps in tray PCF85132U
6.5 × 1.16 × 0.40 mm
4. Marking
Table 2. Marking codes
Type number
PCF85132U
Marking code
PC85132/232-1
PCF85132
Product data sheet
www.DataSheet.in
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 23 November 2010
© NXP B.V. 2010. All rights reserved.
2 of 54


Part Number PCF85132
Description LCD driver
Maker NXP Semiconductors
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PCF85132 Datasheet PDF






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