Design Files
Receive the full breakdown. See the product footprint and more in the eCad file.
Universal LCD Driver for Low Multiplex Rates
The PCF8532 is a peripheral device which interfaces to almost any Liquid Crystal Display (LCD) 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 PCF8532 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).
Not to be used for new designs. Replacement part is PCF85132U/2DA/1 for industrial and PCA85132U/2DA/Q1 for automotive applications.
Product Details
Block Diagram
Choose a diagram:
Features
- Single-chip LCD controller and driver for up to 640 elements
- Selectable backplane drive configuration: static or 2, 3 or 4 backplane multiplexing
- 160 segment drives:
- Up to 80 7-segment numeric characters
- Up to 42 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
- 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, 1/2 or 1/3
- 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
- Two sets of backplane outputs for optimal COG configurations of the application
- Display memory bank switching in static and duplex drive modes
- No external components required
- Manufactured in silicon gate CMOS process
Buy/Parametrics
|
|
|
|
|
|
|
|---|---|---|---|---|---|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Documentation
Quick reference to our documentation types.
1-5 of 10 documents
-
Data Sheet
Universal LCD driver for low multiplex rates
-
Application Note
Cascading NXP LCD segment drivers
-
Application Note
EMC and system level ESD design guidelines for LCD drivers
-
Application Note
Design guidelines for COG modules with NXP monochrome LCD drivers
-
Application Note
ESD and EMC sensitivity of IC
Design Resources
Engineering Services
To get further assistance directly from NXP, please see our Engineering Services.
2 engineering services
-
Independent Design House (IDH)
Hardware Design Services
-
Independent Design House (IDH)
Embedded Software Design
To find additional partner offerings that support this product, visit our Partner Marketplace.