CYTMA545-48LQI36AB

Overview

The CYTMA545-48LQI36AB is a TrueTouch Multi-Touch All-Points Touchscreen Controller manufactured by Cypress Semiconductor Corp. It supports two-wire capacitive touch sensing with a 32-bit resolution. The device features I²C and SPI interface options for data communication. It operates within a supply voltage range of 1.71V to 5.5V. The component is housed in a 48-QFN (6x6) surface-mount package.

Feature Summary

• Supports TrueTouch Multi-Touch All-Points technology for comprehensive touch detection
• Integrates dual interface capabilities including I²C and SPI protocols
• Designed for two-wire capacitive touch panel applications

Applications

• Capacitive touchscreen controller integration
• Multi-touch input device implementation
• Embedded systems requiring I²C or SPI connectivity

Procurement Notes

Verify the specific suffix and package variant against official Cypress documentation to ensure compatibility with system requirements. Confirm that the 48-QFN footprint matches the PCB design. Check for any updated lifecycle status or alternative pin-compatible replacements if necessary.

Selection Notes

Select this component when a dedicated controller for multi-touch capacitive screens is required. Ensure the host processor supports either I²C or SPI interfaces as specified. Verify that the operating voltage range aligns with the system power rails.

Part Context

This part belongs to the TrueTouch family of controllers, designed for high-performance touch sensing. It replaces older single-point or limited multi-touch solutions by providing all-points tracking capabilities within a compact QFN package suitable for space-constrained designs.

Replacement Considerations

Consult official Cypress substitution guides for direct equivalents. No public substitute part numbers are confirmed in the provided source material.