CY7C63923-PVXC

Controllers Overview

The CY7C63923-PVXC is a low-speed USB peripheral controller from the enCoRe II family, designed for component reduction in embedded systems. It integrates an M8C CPU with Harvard architecture capable of up to 24 MHz operation, supported by up to 8 Kbytes of Flash memory and 256 bytes of RAM. The device features a built-in crystalless oscillator, internal 3.3 V regulator, and integrated USB transceiver with pull-up resistor. It provides up to 36 GPIO pins, SPI serial communication, capture timers, and supports automatic PS/2 or USB interface configuration without external switching components.

Controllers Feature Summary

• Integrated crystalless oscillator and internal regulators eliminate the need for external crystals and discrete voltage regulation components.
• Auto-configurable interface allows seamless operation as either a USB or PS/2 device without dedicated GPIO pins for mode switching.
• High-current GPIO ports support configurable sink currents up to 50 mA per pin for direct drive applications.
• In-system reprogrammability enables firmware updates via the D+ and D- pins using a dedicated serial programming protocol.

Controllers Applications

• PC Human Interface Device (HID) peripherals such as optical mice and keyboards
• Gaming controllers including joysticks and game pads
• General-purpose embedded devices like barcode scanners and POS terminals

Controllers Procurement Notes

Verify the specific package variant corresponding to the PVXC suffix against the manufacturer's official documentation to ensure correct pinout compatibility. Confirm that the operating temperature range and voltage specifications align with the target system requirements before integration.

Controllers Selection Notes

Select this component when designing low-speed USB peripherals requiring minimal external circuitry. The integrated oscillator and regulators reduce bill-of-materials costs. Ensure the application utilizes the available GPIO count and memory size, as the CY7C639xx series offers higher pin counts compared to the CY7C63310 or CY7C638xx variants.

Controllers Part Context

This part belongs to the enCoRe II USB microcontroller family, which includes the CY7C63310, CY7C638xx, and CY7C639xx series. The CY7C639xx series represents the high-end option within this group, providing the maximum number of GPIO pins and extended I/O capabilities while maintaining the same core USB and MCU architecture.

Controllers Replacement Considerations

Direct functional substitutes within the same family include other CY7C639xx variants with different package options, such as CY7C63903 or CY7C63913. Verify pin compatibility and package dimensions when substituting, as the core functionality remains consistent across the series.