CY7C6331A

• enCoRe™ USB - enhanced Component Reduction
-Internal oscillator eliminates the need for an external crystal or resonator
-Interface can auto-configure to operate as PS/2 or USB without the need for external components to switch between modes (no GPIO pins needed to manage dual mode capability)
-Internal 3.3V regulator for USB pull-up resistor
-Configurable GPIO for real-world interface without external components
• Flexible, cost-effective solution for applications that combine PS/2 and low-speed USB, such as mice, gamepads,
joysticks, and many others
• USB Specification Compliance
-Conforms to USB Specification, Version 2.0
-Conforms to USB HID Specification, Version 1.1
-Supports 1 Low-Speed USB device address
-Supports 1 control endpoint and 1 data endpoint
-Integrated USB transceiver
• 3.3V regulated output for USB pull-up resistor
• 8-bit RISC microcontroller
-Harvard architecture
-12-MHz internal CPU clock
• Internal memory
-96 bytes of RAM
-3 Kbytes of EPROM
• Interface can auto-configure to operate as PS/2 or USB
-No external components for switching between PS/2 and USB modes
-No GPIO pins needed to manage dual mode capability
• I/O ports
-Up to 10 versatile General Purpose I/O (GPIO) pins, individually configurable
-High current drive on any GPIO pin: 50 mA/pin current sink
-Each GPIO pin supports high-impedance inputs, internal pull-ups, open drain outputs, or traditional CMOS outputs
-Maskable interrupts on all I/O pins
-XTALIN, XTALOUT and VREG can be configured as additional input pins
• Internal low-power wake-up timer during suspend mode
-Periodic wake-up with no external components
• Optional 6-MHz internal oscillator mode
-Allows fast start-up from suspend mode
• Watch Dog timer (WDT)
• Low-voltage Reset at 3.75V
• Internal brown-out reset for suspend mode
• Improved output drivers to reduce EMI
• Operating voltage from 4.0V to 5.5VDC
• Operating temperature from 0 to 70 degrees Celsius
• CY7C63221A available in 16-pin PDIP
• CY7C63231A available in 18-pin SOIC, 18-pin PDIP
• Industry-standard programmer support