MCP2221-I/SL Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP2221-I/SL is a USB-to-UART and I2C/SMBus protocol bridge from Microchip in a 14-pin SOIC package. Running at up to 12 MHz with 1.5 Mbps data transfer rate, it enables PCs and USB hosts to communicate directly with I2C, SMBus, and UART devices in prototyping and embedded system development.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- MCP2221-I/SL Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- USB to UART, I2C, and SMBus protocol bridge in a single chip
- Up to 12 MHz clock frequency with 1.5 Mbps maximum data transfer rate
- 14-pin SOIC package for compact PCB integration
- Supports I2C, SMBus, UART, and USB bus protocols simultaneously
- No external USB driver required on most operating systems
- Suitable for rapid prototyping, debugging, and production USB-to-serial bridges
Applications
The MCP2221-I/SL is widely used in development tools, USB-to-I2C dongles, and production programming adapters where a laptop or PC must communicate with I2C sensors, EEPROM memories, or UART-based microcontrollers. It is also embedded into diagnostic instruments, factory test fixtures, and IoT gateway boards that bridge USB host interfaces to sensor networks and actuator modules.
Specifications
| Manufacturer Package Code | SOIC-14 |
| 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 | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| 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 | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | SERIAL IO/COMMUNICATION CONTROLLER, SERIAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP2221-I/SL:
suggested
Frequently Asked Questions
What protocols does the MCP2221-I/SL bridge between USB and a target embedded system?
The MCP2221-I/SL bridges USB to UART, I2C, and SMBus, supporting data transfer rates up to 1.5 Mbps. This allows a single chip to connect a USB host computer to a wide range of sensor ICs, EEPROM memories, and microcontrollers using standard serial protocols.
Can the MCP2221-I/SL be used without custom USB drivers on Windows or Linux development machines?
Yes, the MCP2221-I/SL uses standard USB HID and CDC device classes, which are natively supported by Windows, Linux, and macOS without requiring custom driver installation, reducing firmware development time by providing 12 MHz clock rate USB bridging out of the box.
How does the 14-pin SOIC package of the MCP2221-I/SL simplify integration compared to larger protocol bridge chips?
The 14-pin SOIC (SOP-14) package for the MCP2221-I/SL uses a 0.25 mm pitch and compact body, making it easy to route on a 2-layer PCB alongside a USB connector and I2C pull-up resistors without the complex escape routing needed for larger BGA or QFP bridge chips.
What is the factory lead time for the MCP2221-I/SL, and how should procurement teams plan around it?
The MCP2221-I/SL has a typical factory lead time of 14 weeks, which is significant for production planning. Buyers sourcing for volume builds should place orders with adequate buffer or identify authorized distributors holding safety stock to prevent supply chain delays.
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