CY8C9560A-24AXI

Overview

The CY8C9560A-24AXI is a 100-pin TQFP I/O expander featuring 60 configurable data pins and 16 independent 8-bit PWM outputs. It operates on a 3 V to 5.25 V supply with a maximum clock frequency of 100 kHz via an I2C interface. The device includes 27 Kbytes of internal EEPROM for user settings and defaults, supports interrupt output for state changes, and provides strong drive modes (10 mA source, 25 mA sink).

Feature Summary

• Configurable I/O ports supporting input, output, bidirectional, and PWM functions.
• Integrated 27 Kbyte EEPROM for storing user defaults and system data.
• Extendable soft addressing algorithm for flexible I2C bus configuration.
• Dedicated interrupt output indicating input level or PWM state changes.

Applications

• Monitoring and controlling board-level devices such as LEDs.
• System intrusion detection applications.
• Storing error codes or manufacturing data for diagnostic read-back.

Procurement Notes

Verify the specific ordering suffix against official Infineon documentation to confirm package type and temperature range. Ensure the I2C master supports clock stretching for proper communication. Confirm RoHS compliance status through current datasheets before procurement.

Selection Notes

Select this model when 60 general-purpose I/O lines and 16 PWM channels are required. The 100-pin TQFP package suits designs needing extensive pin counts. Verify that the application requires the 27 Kbyte EEPROM capacity for persistent storage needs.

Part Context

This component belongs to the CY8C95xxA family of multi-port I/O expanders. It shares architectural similarities with the CY8C9520A and CY8C9540A but offers increased I/O count and PWM sources. All family members operate identically regarding register mapping and I2C protocols.

Replacement Considerations

CY8C9540A: Offers 40 I/Os and 8 PWMs in smaller packages. CY8C9520A: Provides 20 I/Os and 4 PWMs. These variants share the same software architecture but differ in pin count and package options.