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MCP2221
  • MCP2221
  • MCP2221
  • MCP2221
  • MCP2221

MCP2221

Not Recommended for new designs

The MCP2221 is a USB-to-UART/I2C serial converter which enables USB connectivity in applications that have a UART and I²C interfaces. The device reduces external components by integrating the USB termination resistors and the oscillator needed for USB operation. The MCP2221 also has four GP pins providing miscellaneous functionalities (GPIO, USBCFG, SSPND, Clock Output, ADC, DAC, interrupt detector).Please see our MikroElektronika click board! http://www.mikroe.com/click/usb-i2c...

Microchip Technology MCP2221 Product Info

16 April 2026 0

Parameters

Upstream Port

USB 2.0

USB Speed

Full Speed

Down stream Ports

I2C/SMBus, UART

MCU Interface

I2C/SMBus, UART

Tx Buffer Size

64

Rx Buffer Size

64

GPIOs

4

OpVoltage

3.0 to 5.5

ROM I/F

No

UART

No

CompactFlash

No

Secure Digita lMMcards

0

SD MM CS DIO Ports

0

Memory Stick

No

xD Picture Card

No

Logical Unit Num

0

Temp Range Min

-40

Temp Range Max

85

Features

    • Supports full-speed USB (12 Mb/s)
    • Communications and configuration
    • Human Interface Device (HID) for I²C™, chip control and configuration
    • 64-byte Transmit
    • 64-byte Receive
    • 64 byte buffer to handle data throughput at any I²C™ baud rate
    • Fully configurable VID and PID assignments, and string descriptors
    • Bus-powered or self-powered
    • USB 2.0 Compliant
    • 4 kV Human Body Model (HBM)

Description

The MCP2221 is a USB-to-UART/I2C serial converter which enables USB connectivity in applications that have a UART and I²C interfaces. The device reduces external components by integrating the USB termination resistors and the oscillator needed for USB operation. The MCP2221 also has four GP pins providing miscellaneous functionalities (GPIO, USBCFG, SSPND, Clock Output, ADC, DAC, interrupt detector).

Please see our MikroElektronika click board! http://www.mikroe.com/click/usb-i2c

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