PCF8562TT/S400/2,1

Display Drivers Overview

The PCF8562TT/S400/2,1 is a single-chip LCD controller and driver designed for low multiplex rate applications. It interfaces with microprocessors via a two-line bidirectional I²C-bus, supporting speeds up to 400 kHz. The device provides drive signals for static or multiplexed LCDs with up to four backplanes and 32 segments. Key features include selectable backplane configurations (static, 2/3/4), bias settings (static, 1/2, 1/3), and internal voltage generation. It contains 32 × 4-bit RAM for display data storage with auto-incremental addressing. Operating voltages range from 1.8 V to 5.5 V for logic and 2.5 V to 6.5 V for LCD supplies.

Display Drivers Feature Summary

• Generates drive signals for LCDs with up to four backplanes and 32 segments
• Includes 32 × 4-bit RAM for display data storage with auto-incremental addressing
• Supports selectable backplane drive configurations including static and multiplexing modes
• Features internal LCD bias generation with voltage-follower buffers

Display Drivers Applications

• Consumer battery-powered products
• Electronic metering devices
• Portable instruments
• Mobile telephones

Display Drivers Procurement Notes

Verify the specific suffix /S400/2,1 against official NXP documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with target system voltage levels, as the device supports a wide logic supply range of 1.8 V to 5.5 V and LCD supply up to 6.5 V. Confirm that the I²C bus speed requirements align with the device's maximum 400 kHz capability. Check for any specific environmental ratings or RoHS compliance details in the latest datasheet revision.

Display Drivers Selection Notes

Select this component when designing systems requiring direct control of simple LCD displays without external driver ICs. It is suitable for applications needing low power consumption and minimal external components. Consider its compatibility with TTL/CMOS microprocessors and its ability to handle various LCD types, including guest-host and twisted nematic variants. Evaluate if the 32-segment limit meets the display complexity requirements of the target application.

Display Drivers Part Context

The PCF8562 series belongs to NXP's family of LCD segment drivers, designed to simplify interface between microcontrollers and liquid crystal displays. Unlike real-time clocks such as the PCF8563, this part focuses on display driving capabilities. It integrates necessary bias generation and memory, reducing board space and component count compared to discrete solutions.

Display Drivers Replacement Considerations

Check for pin-compatible alternatives within the PCF856x family, such as the PCF8563, though functional differences exist. Verify if newer revisions or updated packaging options are available directly from NXP. Ensure any substitute maintains the same I²C address and command set compatibility.