CY7C63743C-SXCT

Application Specific Microcontrollers Overview

The CY7C63743C-SXCT is an 8-bit RISC microcontroller from the enCoRe™ USB family, designed as a low-speed USB and PS/2 peripheral controller. It features an internal oscillator eliminating external crystals, 8 Kbytes of OTP EPROM, and 256 bytes of RAM. The device supports auto-configuration between USB and PS/2 modes without GPIO pin dedication. Key electrical parameters include a 12-MHz internal CPU clock, operation at 4.0V to 5.5VDC, and an operating temperature range of 0°C to 70°C. It integrates a USB transceiver, SPI block, capture timers, and up to 16 configurable GPIO pins with high current drive capabilities.

Application Specific Microcontrollers Feature Summary

• Crystalless internal oscillator with precision tuning for USB timing (6 MHz ±1.5%)
• Auto-configuring interface supporting both USB 2.0 and PS/2 protocols without external switching components
• Integrated 3.3V regulator for USB pull-up resistor and configurable GPIO ports with 50 mA sink capability
• Includes SPI serial communication block, four 8-bit input capture registers, and watchdog timer

Application Specific Microcontrollers Applications

• Low-speed USB mice and gamepads
• Joysticks and other human interface devices
• Wireless applications utilizing RF inputs via capture timers
• Cost-effective embedded systems requiring combined USB/PS/2 connectivity

Application Specific Microcontrollers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and moisture sensitivity level prior to handling. Check for obsolescence notices as this part may be marked not recommended for new designs. Ensure proper ESD protection during storage and assembly due to humidity sensitivity.

Application Specific Microcontrollers Selection Notes

Select this model for applications requiring dual-mode USB and PS/2 support with minimal external components. Consider the 24-pin SOIC package for surface mount implementations. Evaluate power consumption requirements against the typical 10 mA active current and 10 µA sleep mode. Ensure firmware development tools support the M8B core architecture and OTP programming constraints.

Application Specific Microcontrollers Part Context

This component belongs to the Cypress Semiconductor (now Infineon) enCoRe™ USB family, specifically the CY7C637xxC series. It shares architectural similarities with the CY7C63722C and CY7C63723C but offers expanded I/O capacity in a 24-pin package. The 'SXCT' suffix typically denotes a specific tape-and-reel packaging variant for automated assembly.

Application Specific Microcontrollers Replacement Considerations

Direct substitutes within the same family include CY7C63743-SC or CY7C63743-PC, though package differences exist. Cross-family replacements require careful evaluation of pin compatibility and memory size. Verify that alternative controllers support the required USB HID specification version and GPIO configurations.