Overview
The PCF8562TT/S400/2118 is a universal LCD driver designed by NXP USA Inc. for low multiplex rates. This peripheral device interfaces with almost any Liquid Crystal Display (LCD) and generates the necessary drive signals for static or multiplexed LCDs. It is compatible with most microcontrollers and communicates via a 400 kHz I2C-bus interface. The device is particularly useful for automotive applications due to its AEC-Q100 compliance.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | TSSOP48 (plastic thin shrink small outline package, 48 leads) |
| Supply Voltage Range | 1.8 V to 5.5 V |
| LCD Supply Voltage Range | 2.5 V to 6.5 V |
| Operating Temperature Range | -40 °C to +85 °C |
| I2C-Bus Interface | 400 kHz |
| Display Segments | Up to 32 segments (e.g., 16 7-segment numeric characters, 8 14-segment alphanumeric characters, or any graphics of up to 128 elements) |
| 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 |
Key Features
- AEC-Q100 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, 1⁄2, or 1⁄3
- Internal LCD bias generation with voltage-follower buffers
- 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
- Low power consumption
- No external components required
- Manufactured in silicon gate CMOS process
Applications
The PCF8562TT/S400/2118 is suitable for a variety of applications, including:
- Automotive displays due to its AEC-Q100 compliance
- Industrial control panels and displays
- Consumer electronics requiring LCD displays
- Medical devices with LCD interfaces
- Any system requiring low multiplex rate LCD driving
Q & A
- What is the primary function of the PCF8562TT/S400/2118?
The primary function is to interface with and drive Liquid Crystal Displays (LCDs) with low multiplex rates.
- What is the operating temperature range of the PCF8562TT/S400/2118?
The operating temperature range is -40 °C to +85 °C.
- What types of LCDs can the PCF8562TT/S400/2118 drive?
The device can drive static or multiplexed LCDs with up to four backplanes and up to 32 segments.
- What is the I2C-bus interface frequency of the PCF8562TT/S400/2118?
The I2C-bus interface operates at 400 kHz.
- Does the PCF8562TT/S400/2118 require external components for operation?
No, the device does not require any external components for operation.
- What is the power supply range for the PCF8562TT/S400/2118?
The power supply range is from 1.8 V to 5.5 V, and the LCD supply voltage range is from 2.5 V to 6.5 V.
- Is the PCF8562TT/S400/2118 compliant with automotive standards?
Yes, it is AEC-Q100 compliant for automotive applications.
- What types of display configurations are supported by the PCF8562TT/S400/2118?
The device supports static, 2, 3, or 4 backplane multiplexing and static, 1⁄2, or 1⁄3 display bias configurations.
- How does the PCF8562TT/S400/2118 manage display data?
The device uses 32 × 4-bit RAM for display data storage and features auto-incremented display data loading across device subaddress boundaries.
- What are some of the display capabilities of the PCF8562TT/S400/2118?
The device can drive up to sixteen 7-segment numeric characters, eight 14-segment alphanumeric characters, or any graphics of up to 128 elements.
