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MCP2221A-I/P

MCHPMCP2221A-I/P

Microchip Technology
USB Interface IC USB 2.0 to I2C Converter with GPIO
214 in stock
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Overview

The MCP2221A-I/P is a USB 2.0 to I2C/UART protocol converter that enables easy communication between a PC and various serial peripherals. This 14-pin PDIP version is specifically designed for through-hole mounting, making it ideal for prototyping and development environments without the need for custom PCBs.

Why Choose This Part

This device features 5V tolerant I/O and integrated ADC/DAC peripherals, allowing for basic analog signal monitoring alongside digital communication. It operates from a 3V to 5.5V supply and requires minimal external components, as the USB termination resistors and clock source are integrated.

Applications

PC-Based Hardware Debugging
Directly interface with I2C sensors or UART-based microcontrollers from a terminal or custom PC script for rapid debugging.
Factory Calibration Tools
Create simple USB-to-serial fixtures for programming EEPROMs or calibrating industrial sensors during production.
USB Peripheral Addition
Add plug-and-play USB connectivity to existing legacy systems that only provide serial or I2C headers.

Key Specifications

Function Bridge, USB to I2C/UART
Protocol USB
Interface I2C, UART
Standards USB 2.0
Package / Case 14-DIP (0.300", 7.62mm)
Current - Supply 13mA
Voltage - Supply 3V ~ 5.5V
Operating Temperature -40degC ~ 85degC
Supplier Device Package 14-PDIP

Getting Started

To begin development, download the MCP2221 Utility from Microchip to configure the internal descriptors and GPIO settings. For software integration, Microchip provides a dedicated C++ and .NET DLL, while open-source Python libraries like Adafruit-Blinka allow for immediate scripting of I2C and GPIO operations.

Part of Microchip USB Bridges family » MCP2221

MCP2221 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
MCP2221A-I/P (this part) DIP-14 214
MCP2221A-I/ML VQFN-16 1,666
MCP2221A (Microchip) SOIC-14 9,526
Also available as: MCP2221A-I/ST, MCP2221AT-I/ML, MCP2221A-I/SL, MCP2221, MCP2221A-I/SN

Also Consider

MCP2221A-I/SL MCHPMicrochip Technology - The SOIC version of the same IC for high-volume surface-mount production environments.
FT232HL FTDI - A higher-performance USB-to-multi-protocol bridge capable of much faster data rates and additional modes like SPI and JTAG.
CP2112 SiLSilicon Labs - A specialized USB to I2C bridge that uses standard HID class drivers to avoid custom driver installations.

Categories

Interface ICs > USB Interface ICs