Overview
The PCA85162T/Q900/1Y is a 32 x 4 automotive LCD driver designed by NXP USA Inc. for low multiplex rates. This peripheral device is capable of interfacing with almost any Liquid Crystal Display (LCD), making it versatile for various automotive applications. It generates the drive signals for static or multiplexed LCDs containing up to four backplanes and up to 32 segments. The device is compatible with most microcontrollers and communicates via a two-line bidirectional I2C-bus, minimizing communication overheads through features like display RAM with auto-incremented addressing and hardware subaddressing.
Key Specifications
| Specification | Details |
|---|---|
| Number of Segment Drives | 32 segment drives |
| Display RAM | 32 × 4-bit RAM for display data storage |
| Backplane Drive Configuration | Static, 2, 3, or 4 backplane multiplexing |
| Display Bias Configuration | Static, 1⁄2, or 1⁄3 |
| Power Supply Range | From 1.8 V to 5.5 V |
| Logic LCD Supply Range | From 2.5 V to 8.0 V |
| Temperature Range | Up to 95 °C |
| I2C-Bus Interface | 400 kHz |
| Compatibility | AEC-Q100 compliant for automotive applications |
| Manufacturing Process | Silicon gate CMOS process |
Key Features
- Single chip LCD controller and driver
- Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing
- Selectable display bias configuration: static, 1⁄2, or 1⁄3
- Internal LCD bias generation with voltage-follower buffers
- Supports up to 16 7-segment numeric characters, up to 8 14-segment alphanumeric characters, or any graphics of up to 128 segments/elements
- Display memory bank switching in static and duplex drive modes
- Versatile blinking modes
- Independent supplies possible for LCD and logic voltages
- Low power consumption
- No external components required
Applications
The PCA85162T/Q900/1Y is primarily designed for automotive applications, including instrument clusters, infotainment systems, and other automotive displays that require low multiplex rates. Its versatility and compatibility with various LCD configurations make it suitable for a wide range of display needs in the automotive sector.
Q & A
- What is the PCA85162T/Q900/1Y used for? The PCA85162T/Q900/1Y is used as a 32 x 4 automotive LCD driver for low multiplex rates, interfacing with various LCD displays in automotive applications.
- What is the communication interface of the PCA85162T/Q900/1Y? The device communicates via a two-line bidirectional I2C-bus.
- What are the power supply ranges for the PCA85162T/Q900/1Y? The device operates with a power supply range from 1.8 V to 5.5 V and an LCD logic supply range from 2.5 V to 8.0 V.
- Is the PCA85162T/Q900/1Y compliant with automotive standards? Yes, it is AEC-Q100 compliant for automotive applications.
- What is the maximum temperature range for the PCA85162T/Q900/1Y? The device can operate up to a temperature of 95 °C.
- Can the PCA85162T/Q900/1Y be cascaded for larger LCD applications? Yes, it can be easily cascaded for larger LCD applications.
- What type of manufacturing process is used for the PCA85162T/Q900/1Y? It is manufactured in a silicon gate CMOS process.
- Does the PCA85162T/Q900/1Y require external components? No, it does not require any external components.
- What types of LCDs can the PCA85162T/Q900/1Y support? It can support static or multiplexed LCDs with up to four backplanes and up to 32 segments.
- What is the I2C-bus interface frequency of the PCA85162T/Q900/1Y? The I2C-bus interface operates at 400 kHz.
