MCP2221-I/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock

Name: MCP2221-I/ML
Brand: Microchip
SKU: MCP2221-I/ML
Availability: InStock

MCP2221-I/ML is a USB-to-UART/I2C serial converter from Microchip in a 16-pin QFN package, supporting 12 Mbit/s USB Full Speed and I2C/SMBus/UART interfaces. Max data transfer rate reaches 1.5 MBps. From $1.20, in stock with worldwide shipping.

NOT RECOMMENDEDIntegrated CircuitVerified Jun 2026

Package / Visual Reference

MCP2221-I/MLQuad Flat No-Lead

Quick Facts

Manufacturer: Microchip
Package: Quad Flat No-Lead
Pin Count: 16
Lifecycle: NOT RECOMMENDED
Datasheet: MCP2221-I/ML Datasheet PDF
Category: Integrated Circuit
Price: From $2.2700(MOQ 1)
Temp Range: -40.0°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of MCP2221-I/ML?

USB Full Speed interface at 12 Mbit/s enabling fast PC-to-peripheral communication
Supports I2C, SMBus, and UART bridging in a single 16-pin QFN chip
Compact VQFN-16 package measuring 4x4 mm for space-constrained designs
Four GPIO pins with configurable functions for flexible interface expansion

What is MCP2221-I/ML used for?

MCP2221-I/ML is ideal for USB-to-serial bridge applications such as connecting microcontrollers or sensors to a PC without a native USB interface. It simplifies prototyping of I2C and UART peripherals by providing plug-and-play USB connectivity. Engineers use it in development boards, data loggers, and industrial handheld devices requiring USB communication.

What are the specifications of MCP2221-I/ML?

Manufacturer Package Code	VQFN-16
Factory Lead Time	14Weeks
YTEOL	3
Bus Compatibility	I2C; SMBUS; UART; USB
Clock Frequency-Max	12MHz
Data Transfer Rate-Max	1.5MBps
JESD-30 Code	S-PQCC-N16
JESD-609 Code	e3
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	LCC16,.16SQ,25
Package Shape	SQUARE
Package Style	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Qualification Status	Not Qualified
Screening Level	AEC-Q100; TS 16949
Supply Current-Max	15mA
Supply Voltage-Max	5.5V
Supply Voltage-Min	3V
Supply Voltage-Nom	3.3V
Surface Mount	YES
Technology	CMOS
Temperature Grade	INDUSTRIAL
Terminal Finish	Matte Tin (Sn)
Terminal Form	NO LEAD
Terminal Pitch	0.65mm
Terminal Position	QUAD
uPs/uCs/Peripheral ICs Type	SERIAL IO/COMMUNICATION CONTROLLER, SERIAL
Package	Quad Flat No-Lead

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99
HTS Code	8542.39.00.01
Country of Origin	Thailand

Where can I find the MCP2221-I/ML datasheet?

MCP2221-I/ML Datasheet Download

Official datasheet from Microchip

What are equivalent replacements for MCP2221-I/ML?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What USB speed does MCP2221-I/ML support and what maximum data transfer rate can it achieve?

MCP2221-I/ML supports USB Full Speed at 12 Mbit/s, delivering a maximum effective data transfer rate of 1.5 MBps. This bandwidth is sufficient for high-throughput serial communication tasks such as data logging, firmware programming, and real-time sensor streaming in embedded development setups.

Which serial protocols can MCP2221-I/ML bridge to USB simultaneously?

MCP2221-I/ML bridges USB to I2C, SMBus, and UART interfaces within a single IC. The I2C port supports standard-mode 100 kHz and fast-mode 400 kHz speeds, while the UART supports configurable baud rates. This multi-protocol capability eliminates the need for separate bridge chips in mixed-interface designs.

How does the VQFN-16 package of MCP2221-I/ML compare to a DIP alternative for PCB layout?

The VQFN-16 package has a 4x4 mm footprint with 16 leads on a 0.5 mm pitch, occupying far less PCB area than an equivalent 16-pin DIP package at 19.5 mm x 6.35 mm. This makes MCP2221-I/ML suitable for compact USB adapters, dongles, and multilayer boards where minimizing component footprint is critical.

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From $2.2700

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Qty.	Unit Price	Ext. Price
1+	$3.1500	$3.15
66+	$2.5790	$170.21
100+	$2.3800	$238.00
1000+	$2.2900	$2290.00
5000+	$2.2700	$11350.00

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Unit price: $3.1500 · Total: $3.15

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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MCP2221-I/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock

What are the key features of MCP2221-I/ML?

What is MCP2221-I/ML used for?

What are the specifications of MCP2221-I/ML?

Compliance & Regulatory

Where can I find the MCP2221-I/ML datasheet?

What are equivalent replacements for MCP2221-I/ML?

Frequently Asked Questions

What USB speed does MCP2221-I/ML support and what maximum data transfer rate can it achieve?

Which serial protocols can MCP2221-I/ML bridge to USB simultaneously?

How does the VQFN-16 package of MCP2221-I/ML compare to a DIP alternative for PCB layout?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Microchip

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