CY7C63231A-PXC

Application Specific Microcontrollers Overview

The CY7C63231A-PXC is a low-speed USB peripheral controller from the enCoRe™ USB family, integrating an 8-bit RISC microcontroller with a USB Serial Interface Engine (SIE). It operates within a voltage range of 4.0V to 5.5V DC and supports temperatures from 0°C to 70°C. The device features 3 Kbytes of EPROM and 96 bytes of RAM. It includes an internal oscillator eliminating external crystals, configurable GPIO pins with up to 50 mA sink current, and auto-configuration for PS/2 or USB modes without external switching components.

Application Specific Microcontrollers Feature Summary

• Integrated crystal-less internal oscillator supporting 6-MHz and 12-MHz internal clocks
• Auto-configurable interface operating as PS/2 or USB without external mode-switching components
• Up to 10 versatile GPIO pins with individually configurable drive strength up to 50 mA sink
• Supports one low-speed USB device address, one control endpoint, and one data endpoint

Application Specific Microcontrollers Applications

• Mice
• Gamepads
• Joysticks

Application Specific Microcontrollers Procurement Notes

Verify the specific package variant against the datasheet, as the CY7C63231A is available in 16-pin PDIP, 18-pin SOIC, 18-pin PDIP, and die form. Confirm that the -PXC suffix corresponds to the required package type and temperature rating for the intended design implementation.

Application Specific Microcontrollers Selection Notes

Select this component for applications requiring combined PS/2 and low-speed USB connectivity with minimal external components. Ensure firmware utilizes the 96-byte RAM efficiently, keeping the Data Stack Pointer (DSP) below 0x4Fh to avoid conflicts with USB Endpoint FIFOs allocated in the upper RAM region.

Application Specific Microcontrollers Part Context

This part belongs to the Cypress Semiconductor enCoRe™ USB family, designed for enhanced component reduction. It shares architectural similarities with the CY7C63221A but differs in memory configuration or pinout availability depending on the specific sub-model variant selected for production.

Application Specific Microcontrollers Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the verified source material.