7C63201

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CY7C63201 - 8-Bit RISC USB Microcontroller Technical Summary

Overview

The CY7C63201 is an 8-bit RISC-based microcontroller with an integrated USB 1.5 Mbps serial interface engine, designed for low-speed USB peripheral applications. It belongs to the CY7C63xxx family of microcontrollers, featuring optimized USB functionality, low EMI emissions, and flexible I/O configurations. With its Harvard architecture and USB-optimized instruction set, it is ideal for Human Interface Devices (HIDs) such as mice, joysticks, and gamepads.

Key Features

• USB Compliance: Conforms to USB 1.5 Mbps Specification (v1.0) and USB HID Specification (v1.0)
• Microcontroller Core: 8-bit RISC architecture with 35 USB-optimized instructions
• Clock System: 6 MHz external ceramic resonator or crystal input, internally doubled to 12 MHz
• Memory:
  • 4K bytes of EPROM (CY7C63201 variant)
  • 128 bytes of RAM
• I/O Ports:
  • Up to 10 general-purpose I/O pins (Schmitt trigger inputs with internal pull-ups)
  • 8 low-current (Port 0) and 2 high-current (Port 1) I/O pins with LED drive capability
  • Maskable interrupts on all I/O pins
• Timers: 8-bit free-running timer and watchdog timer (WDT)
• Power Management: Internal power-on reset (POR), 4.0V to 5.25V operating range
• Packaging: Available in 18-pin PDIP and 18-pin Windowed CerDIP packages

Applications

• USB HID devices (mice, keyboards, joysticks, game controllers)
• Low-speed USB peripherals requiring simple control
• Embedded systems with USB connectivity
• Consumer electronics with USB interface requirements

Functional Description

Memory Organization

The CY7C63201 features a Harvard architecture with separate program and data memory spaces:

• Program Memory: 4K bytes of EPROM with linear addressing
• Data Memory: 128 bytes of RAM organized for efficient USB data handling
• Security: Includes a security fuse bit to protect programmed code

I/O Ports and Interrupts

The device features two configurable I/O ports:

• Port 0: 8 low-current I/O pins with Schmitt trigger inputs and programmable pull-ups
• Port 1: 2 high-current I/O pins capable of driving LEDs directly
• Interrupts: All I/O pins support maskable interrupts with dedicated enable registers

USB Engine

The integrated USB engine supports:

• Full USB 1.5 Mbps low-speed operation
• 1 device address with 2 endpoints (Endpoint 0 for control, Endpoint 1 for interrupt transfers)
• Automatic USB enumeration process handling
• Built-in transceivers with no external components required

Timers and Reset

• 8-bit Timer: Free-running timer with interrupt capability
• Watchdog Timer: Protects against software lockups
• Reset Sources: Power-on reset (POR), watchdog reset, and USB bus reset

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage: -0.5V to +6.0V
• Input Voltage: -0.5V to VDD+0.5V
• Operating Temperature: 0°C to +70°C
• Storage Temperature: -65°C to +150°C

DC Characteristics

• Operating Voltage: 4.0V to 5.25V
• Input High Voltage: 2.0V min (at VDD = 4.0V)
• Input Low Voltage: 0.8V max (at VDD = 4.0V)
• Port 1 Sink Current: 20mA max per pin
• Power Consumption: < 50mA typical during active operation

USB Electrical Characteristics

• USB Data Rate: 1.5 Mbps ±0.25%
• USB Differential Input Sensitivity: 200mV min
• USB Driver Output Impedance: 28Ω to 44Ω

Package Information

The CY7C63201 is available in the following packages:

• 18-pin PDIP (Plastic Dual In-line Package):
  • Dimensions: 22.86mm x 6.35mm body
  • 0.3" row spacing
• 18-pin Windowed CerDIP (Ceramic Dual In-line Package):
  • Dimensions: 23.62mm x 6.92mm body
  • UV-erasable window for development

Ordering Information

The device is available in several variants with different memory sizes and package options:

• CY7C63200: 2K EPROM
• CY7C63201: 4K EPROM
• Suffixes indicate package type:
  • -PC: 18-pin PDIP (plastic)
  • -WC: 18-pin Windowed CerDIP

Development Support

The CY7C63201 is supported by:

• Standard EPROM programmers
• Windowed packages for development and testing
• USB protocol analyzers for debugging

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