cy7c63101

CY7C63101 - 8-Bit RISC Microcontroller with USB Interface

Overview

The CY7C63101 is part of the CY7C630/1XXA family of 8-bit RISC microcontrollers featuring an integrated 1.5 Mbps USB serial interface engine. This cost-effective solution is designed for low-speed USB peripherals such as mice, joysticks, and gamepads. The microcontroller employs a Harvard architecture with 35 USB-optimized instructions and operates with an internal 12 MHz clock derived from an external 6 MHz ceramic resonator or crystal.

Key features include integrated USB transceivers, general purpose I/O ports with LED drive capability, on-chip memory, and multiple reset mechanisms. The device is particularly suited for Human Interface Device (HID) applications that require USB connectivity.

Key Features

• USB Compliance:
  • Conforms to USB 1.5 Mbps Specification, Version 1.0
  • Compatible with USB HID Specification, Version 1.0
  • Supports 1 device address and 2 endpoints
• Microcontroller Core:
  • 8-bit RISC architecture with Harvard design
  • 6 MHz external clock (ceramic resonator or crystal)
  • 12 MHz internal operation
  • 35 USB-optimized instructions
• Memory:
  • 128 bytes of RAM
  • 4K bytes of EPROM
• I/O Capabilities:
  • Integrated USB transceivers
  • Up to 16 Schmitt trigger I/O pins with internal pull-up
  • Up to 8 I/O pins with LED drive capability
  • Special purpose I/O mode for mouse applications
  • Maskable interrupts on all I/O pins
• Timing and Control:
  • 8-bit free-running timer
  • Watchdog timer (WDT)
  • Internal power-on reset (POR)
• Power Management:
  • Instant-On Now™ for Suspend and Periodic Wake-up Modes
  • Improved output drivers to reduce EMI
• Operating Conditions:
  • Voltage range: 4.0V to 5.25V DC
  • Temperature range: 0°C to 70°C

Applications

• USB mice and pointing devices
• Game controllers and joysticks
• USB keyboards and input devices
• Human Interface Devices (HID)
• Low-speed USB peripherals
• Consumer electronics with USB connectivity

Functional Description

Memory Organization

The CY7C63101 features a Harvard architecture with separate program and data memory spaces:

• Program Memory: 4K bytes of EPROM organized as 2048 x 16 bits
• Data Memory: 128 bytes of RAM organized as 128 x 8 bits
• Security: Includes a security fuse bit to protect program memory

I/O Ports

The device features two general purpose I/O ports:

• Port 0: 8 low-current I/O pins with Schmitt trigger inputs
• Port 1: 8 high-current I/O pins capable of driving LEDs
• All I/O pins feature:
  • Internal pull-up resistors
  • Maskable interrupt capability
  • Controlled rise/fall times for reduced EMI

USB Engine

The integrated USB engine provides full-speed (1.5 Mbps) USB functionality:

• Supports control (Endpoint 0) and interrupt (Endpoint 1) transfers
• Automatic handling of USB enumeration process
• Integrated USB transceiver with differential receiver and driver
• Complies with USB low-speed driver and receiver specifications

Timing and Interrupts

• 8-bit free-running timer with interrupt capability
• Watchdog timer for system reliability
• Multiple interrupt sources:
  • GPIO pin changes
  • USB events
  • Timer overflow
  • Wake-up events

Electrical Characteristics

Absolute Maximum Ratings

• Supply voltage (VCC): -0.5V to +7.0V
• Input voltage (any pin): -0.5V to VCC +0.5V
• Operating temperature: 0°C to 70°C
• Storage temperature: -65°C to +150°C

Recommended Operating Conditions

• Supply voltage: 4.0V to 5.25V
• Operating temperature: 0°C to 70°C
• Clock frequency: 6 MHz ±0.25%

USB Electrical Characteristics

• Low-speed driver output characteristics:
  • Differential output voltage: 1.3V min, 2.8V max
  • Rise/fall time: 75 ns to 300 ns
• Receiver characteristics:
  • Differential input sensitivity: ±200 mV
  • Common mode range: 0.8V to 2.5V

Package Information

The CY7C63101 is available in multiple package options:

• 24-pin SOIC (Small Outline Integrated Circuit)
• 24-pin QSOP (Quarter Size Outline Package)
• 24-pin Windowed CerDIP (for development)

All packages are RoHS compliant and suitable for commercial temperature range applications. The windowed CerDIP package allows for UV erasure during development cycles.

Ordering Information

The device is available in several variants with different memory sizes and package options. The CY7C63101 specifically denotes the 4K EPROM version with 16 I/O pins. Complete ordering codes include package type and temperature range suffixes.