MCP2221A-I/SL

Product Overview

Category

The MCP2221A-I/SL belongs to the category of USB-to-UART/I2C serial converter.

Use

This product is primarily used for bridging communication between a Universal Serial Bus (USB) and an Inter-Integrated Circuit (I2C) or UART interface. It enables easy integration of USB connectivity into various electronic devices.

Characteristics

• USB 2.0 compliant
• Supports full-speed USB communication (12 Mbps)
• Provides I2C master/slave functionality
• Offers UART communication at various baud rates
• Small form factor, suitable for space-constrained applications
• Low power consumption
• Compatible with Windows, Linux, and macOS operating systems

Package

The MCP2221A-I/SL is available in a small outline IC (SOIC) package.

Essence

The essence of this product lies in its ability to provide seamless communication between USB and I2C/UART interfaces, simplifying the integration of USB connectivity into electronic devices.

Packaging/Quantity

The MCP2221A-I/SL is typically sold in reels containing a quantity of 250 units per reel.

Specifications

• USB Compliance: USB 2.0
• Communication Speed: Full-Speed (12 Mbps)
• I2C Master/Slave: Yes
• UART Baud Rates: 300 bps to 115.2 kbps
• Operating Voltage: 3.3V
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOIC

Detailed Pin Configuration

The MCP2221A-I/SL features a total of 20 pins. The pin configuration is as follows:

1. VDD - Power supply voltage
2. GND - Ground
3. GP0 - General-purpose I/O pin 0
4. GP1 - General-purpose I/O pin 1
5. GP2 - General-purpose I/O pin 2
6. GP3 - General-purpose I/O pin 3
7. GP4 - General-purpose I/O pin 4
8. GP5 - General-purpose I/O pin 5
9. GP6 - General-purpose I/O pin 6
10. GP7 - General-purpose I/O pin 7
11. SDA - I2C data line
12. SCL - I2C clock line
13. TX - UART transmit pin
14. RX - UART receive pin
15. RTS - UART request-to-send pin
16. CTS - UART clear-to-send pin
17. VUSB - USB power supply voltage
18. D- - USB data minus line
19. D+ - USB data plus line
20. ID - USB identification pin

Functional Features

The MCP2221A-I/SL offers the following functional features:

1. USB-to-UART Conversion: Enables communication between a USB host and UART devices.
2. USB-to-I2C Conversion: Facilitates communication between a USB host and I2C devices, acting as an I2C master or slave.
3. GPIO Functionality: Provides general-purpose input/output pins for various applications.
4. USB Power Supply: Can be used to power external devices through the VUSB pin.

Advantages and Disadvantages

Advantages

• Easy integration of USB connectivity into electronic devices
• Small form factor suitable for space-constrained applications
• Wide operating temperature range (-40°C to +85°C)
• Compatibility with major operating systems (Windows, Linux, macOS)

Disadvantages

• Limited quantity per reel (250 units)
• Requires additional components for complete functionality in certain applications

Working Principles

The MCP2221A-I/SL operates by converting USB communication signals into UART or I2C protocols. It utilizes internal circuitry to handle the conversion process and provides GPIO functionality for additional control and interfacing capabilities.

Detailed Application Field Plans

The MCP2221A-I/SL finds applications in various fields, including but not limited to:

1. Embedded Systems: Integration of USB connectivity in microcontroller-based systems.
2. Industrial Automation: Communication between USB-enabled devices and I2C or UART interfaces in industrial settings.
3. Consumer Electronics: Enabling USB communication with peripheral devices such as sensors, displays, and actuators.
4. Internet of Things (IoT): Bridging USB connectivity with IoT devices using I2C or UART interfaces.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MCP2221A-I/SL include:

1. FT232R - USB-to-UART/I2C converter from FTDI
2. CP2102N - USB-to-UART bridge controller from Silicon Labs
3. CH341A - USB-to-UART/I2C/SPI converter from WCH

These alternative models provide comparable