CY7C63743-PC

Application Specific Microcontrollers Overview

The CY7C63743-PC is an 8-bit RISC microcontroller from the enCoRe™ USB family, designed for low-speed USB and PS/2 peripheral applications. It features a crystalless internal oscillator, eliminating the need for external resonators. The device integrates 8 Kbytes of OTP EPROM and 256 bytes of RAM. It supports one low-speed USB device address with three data endpoints and auto-configures between USB and PS/2 modes without external switching components. The MCU operates on a 4.0V to 5.5V supply within a 0°C to 70°C temperature range and is housed in a 24-pin PDIP package.

Application Specific Microcontrollers Feature Summary

• Integrated crystalless oscillator with precision tuning for USB timing (6 MHz ±1.5%)
• Auto-configuring interface supporting both USB 2.0 and PS/2 protocols without GPIO pin dedication
• 8-bit M8B RISC core with 8 Kbytes OTP EPROM and 256 bytes RAM
• Up to 16 configurable GPIO pins with high current sink capability (50 mA/pin)

Application Specific Microcontrollers Applications

• USB and PS/2 mice
• Gamepads and joysticks
• Wireless RF input interfaces using capture timers

Application Specific Microcontrollers Procurement Notes

Verify component status as this part number may be discontinued or subject to last-time buy notices. Confirm RoHS compliance requirements, as original Cypress versions were non-compliant while later Infineon variants may differ. Ensure programming equipment compatibility with the M8B architecture and OTP memory type before procurement.

Application Specific Microcontrollers Selection Notes

Select the CY7C63743-PC when a 24-pin through-hole package is required for designs combining USB and PS/2 connectivity. Compare against the CY7C63743-SXCT for surface-mount needs. Consider the CY7C63723 series if fewer I/O pins (10 vs 16) are sufficient for the application to reduce board space.

Application Specific Microcontrollers Part Context

This component belongs to the CY7C637xx family, which includes the CY7C63722 (die), CY7C63723 (18-pin), and CY7C63743 (24-pin). The -PC suffix specifically denotes the 24-pin Plastic Dual In-Line Package (PDIP) variant. The family shares identical core functionality, differing primarily in pin count and physical packaging.

Application Specific Microcontrollers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official obsolescence notices for recommended replacements or evaluate the CY7C63743-SXCT for equivalent functionality in a different package.