PCF8576CH/1,118

Overview

The PCF8576CH/1,118 is a single-chip LCD controller and driver designed for low multiplex rates. It supports up to four backplanes and forty segments, enabling the drive of static or multiplexed displays containing up to twenty 7-segment characters. The device features a display RAM with auto-incremented addressing and hardware subaddressing to minimize communication overheads. It communicates via a two-line bidirectional I²C bus and is compatible with most microcontrollers. The component operates within a temperature range of -40 °C to 85 °C and utilizes a 64-pin LQFP plastic package.

Feature Summary

• Single-chip integration of LCD controller and driver functions
• Support for up to four backplanes and forty segment drives
• Two-line bidirectional I²C bus interface for microcontroller communication
• Display RAM with auto-incremented addressing to reduce communication overhead

Applications

• Low multiplex rate liquid crystal display systems
• Microcontroller-based user interface panels
• Consumer electronics requiring simple alphanumeric display output

Procurement Notes

Verify the specific ordering suffix and package variant against the manufacturer's current product data sheet to ensure compatibility with design requirements. Confirm that the I²C bus speed and voltage levels match the target system specifications. Check for any updates in the component lifecycle status or recommended design alternatives provided by NXP Semiconductors prior to final procurement decisions.

Selection Notes

Select this component when designing systems requiring a dedicated driver for small to medium-sized LCDs with low multiplex rates. It is suitable for applications where minimizing external components is critical due to its integrated controller and driver capabilities. Ensure the display module supports the maximum capacity of forty segments and four backplanes. Consider the I²C interface availability on the host microcontroller as a primary selection criterion.

Part Context

The PCF8576 series belongs to NXP Semiconductors' portfolio of universal LCD drivers intended for low multiplex rate applications. This family provides peripheral devices that interface directly with Liquid Crystal Displays, generating necessary drive signals. The PCF8576CH/1,118 specifically denotes the version packaged in a 64-lead Low Profile Quad Flat Package (LQFP), facilitating surface-mount assembly in compact electronic designs.

Replacement Considerations

Consult the official NXP selector guide for LCD segment drivers to identify equivalent or upgraded parts within the same family. Verify pinout compatibility and functional equivalence before substituting with other models such as those from the PCA854x or PCF855x series.