MCP2200-I - USB-to-UART Bridge, 20-SOIC | Microchip Technology
N.º da peça: MCP2200-I ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $2.85 | $2,85 |
| 10 | $2.55 | $25,50 |
| 100 | $2.18 | $218,00 |
| 500 | $1.92 | $960,00 |
| 1.000 | $1.66 | $1.660,00 |
| 3.000 | $1.45 | $4.350,00 |
MCP2200-I Visão geral
A USB-to-UART bridge is a protocol converter that allows microcontrollers, sensors, and legacy UART peripherals to communicate over a modern USB host. In the broader hierarchy it sits between USB class controllers (CDC) and UART transceivers (RS-232/RS-485 line drivers), absorbing the USB protocol stack entirely on-chip so the host MCU needs no firmware-side USB stack. Bridges like the MCP2200-I therefore appear in the BOM wherever an MCU lacks native USB (e.g. low-cost PIC, AVR, 8051 designs) or where a product must add a diagnostic / firmware-update COM port to an existing board.
Key features of the MCP2200-I include: integrated 12 Mbps USB 2.0 full-speed transceiver; configurable baud rate from 300 baud to 1 Mbaud; eight GP inputs/outputs; on-chip 3.3V LDO for internal logic and up to ~50 mA of external load; hardware suspend/resume support; and a dedicated SSPND pin for power management. The device enumerates as a CDC ACM class device, so on Windows, macOS, and Linux it shows up as a virtual COM port with no custom driver required. Internal EEPROM configurable via the host allows customization of VID, PID, manufacturer string, and GPIO defaults.
Typical applications are USB-to-serial debug / firmware-update ports on PIC and AVR development boards, industrial sensor nodes that stream UART telemetry to a PC, point-of-sale terminals, USB dongles for legacy equipment, and embedded hobbyist designs (Arduino, PIC development kits).
When designing with the MCP2200-I, ensure a stable 5V VBUS rail, place the 0.1 uF decoupling capacitor directly on VDD, and respect the 0.5 mA pull-up current budget on each GPIO. Because it is USB-powered, surge and ESD protection on VBUS and the data lines is recommended for harsh environments.
Alternativas drop-in para MCP2200-I — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasMCP2200-I Especificações
| Função | USB 2.0 to UART Protocol Converter |
| USB Speed | Full-Speed (12 Mbps) |
| UART Data Rate | 300 baud to 1 Mbaud |
| GPIO Count | 8 |
| USB Class | CDC ACM (virtual COM port) |
| Supply Voltage (VBUS) | 4.75 V to 5.25 V |
| Internal LDO Output | 3.3 V (up to 50 mA external) |
| Temperatura de operação | -40C to +85C (Industrial, -I suffix) |
| Suspend Current | Low-power suspend mode supported |
| Encapsulamento | 20-SOIC (SO) |
| Tipo de montagem | Surface Mount |
| Nível MSL | 1 (per Microchip) |
| Status RoHS | Compliant |
| Lead Free | Yes |
| Internal EEPROM | Yes (VID/PID/GPIO configuration) |
Configuração de pinos do MCP2200-I
| Pino 1 | VDD — 3.3V regulated output from internal LDO (also supplies internal logic) |
| Pino 2 | GP0 — General-purpose I/O 0 |
| Pino 3 | GP1 — General-purpose I/O 1 |
| Pino 4 | GP2 — General-purpose I/O 2 |
| Pino 5 | GP3 — General-purpose I/O 3 |
| Pino 6 | GP4 — General-purpose I/O 4 |
| Pino 7 | GP5 — General-purpose I/O 5 |
| Pino 8 | GP6 — General-purpose I/O 6 |
| Pino 9 | GP7 — General-purpose I/O 7 |
| Pino 10 | CTS — UART Clear-To-Send (input) |
| Pino 11 | RTS — UART Request-To-Send (output) |
| Pino 12 | RXD — UART Receive Data (input to MCP2200) |
| Pino 13 | TXD — UART Transmit Data (output from MCP2200) |
| Pino 14 | VUSB — USB VBUS supply input (4.75V to 5.25V) |
| Pino 15 | D- — USB D- data line |
| Pino 16 | D+ — USB D+ data line |
| Pino 17 | GND — Ground |
| Pino 18 | SSPND — Suspend status output (active high when USB suspended) |
| Pino 19 | RESET — Device reset (internal pull-up, leave open in normal operation) |
| Pino 20 | OSC — External reference / oscillator pin (per datasheet) |
Aplicações típicas
MCP2200-I é adequado para 6 aplicaçãos: USB Debug / Firmware-Update COM Port for PIC and AVR Boards, Industrial Sensor Node to PC Telemetry, Point-of-Sale Terminal USB-to-Serial Adapter, USB Dongle for Retro / Legacy RS-232 Equipment, Hobbyist / Maker Development Boards, USB Barcode / Scanner Interface Board.
USB Debug / Firmware-Update COM Port for PIC and AVR Boards
The MCP2200-I's 1 Mbaud UART ceiling and CDC ACM driver model make it a near-universal USB-to-UART bridge for microcontroller boards that lack native USB. Adding it between a 5V USB VBUS rail and a PIC or AVR target provides a virtual COM port that any host terminal (Tera Term, PuTTY, minicom) can open at 115200 baud without driver installation, ideal for bootloader-based firmware updates and printf-style debug logs.
Recomendado
Industrial Sensor Node to PC Telemetry
Industrial sensors frequently expose a UART for configuration and telemetry but the upstream PC expects USB. The MCP2200-I bridges the gap, presenting the sensor's UART as a CDC ACM COM port at 9600-115200 baud. Its -40C to +85C industrial temperature rating lets it sit on the same PCB as the sensor inside a factory-floor enclosure, and the integrated 3.3V LDO powers both the bridge and a low-current signal-conditioning front end from VBUS alone.
Recomendado
Point-of-Sale Terminal USB-to-Serial Adapter
POS terminals and receipt printers often expose a 3.3V UART at modest baud rates. The MCP2200-I converts that UART into a USB CDC virtual COM port that connects directly to a Windows POS host without proprietary drivers. Its 8 GPIO pins can drive status LEDs, a paper-out sensor, or a cash-drawer kick signal, simplifying the BOM versus discrete USB-UART plus logic chips.
Recomendado
USB Dongle for Retro / Legacy RS-232 Equipment
Modern PCs no longer ship with RS-232 ports but test labs, factory fixtures, and legacy instruments still expose UART at 3.3V or 5V CMOS levels. The MCP2200-I plus an external level shifter (MAX3232 or similar) creates a compact USB-to-serial dongle that enumerates as a COM port on any OS, with driver-free installation in the field. The 8 GPIO can also expose modem-control lines that the level shifter bridges to RS-232.
Recomendado
Hobbyist / Maker Development Boards
The MCP2200-I Breakout Module and chip-down designs on Arduino shields and PIC development kits give hobbyists a low-cost USB-UART bridge that installs as a COM port on every desktop OS. With 8 GPIO and a 3.3V LDO it doubles as a generic I/O expander over USB - useful for driving relays or reading buttons from a PC without writing a USB driver on the host side.
Recomendado
USB Barcode / Scanner Interface Board
Embedded barcode scanner modules output UART frames at 9600-115200 baud. Pairing the module with an MCP2200-I presents the scanner as a USB HID or CDC device to a kiosk or POS host, with no driver installation. The 8 GPIOs can be reassigned at runtime to drive OK/IR LEDs, trigger a buzzer on successful scan, or detect a trigger button - all coordinated over the same USB cable.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MCP2200-I — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MCP2200T-I/SO | MCP2200-I/SS | CP2102N-A02-GQFN28R | FT231XS-R |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Silicon Labs | FTDI |
| Package | 20-SOIC (SO) | 20-SOIC (SO) - same | 20-SSOP - smaller body | QFN-28 - different footprint | 20-SSOP - different footprint |
| USB Speed | Full-Speed (12 Mbps) | Full-Speed (12 Mbps) | Full-Speed (12 Mbps) | Full-Speed (12 Mbps) | Full-Speed (12 Mbps) |
| Max UART Baud | 1 Mbaud | 1 Mbaud | 1 Mbaud | 1 Mbaud | 3 Mbaud |
| USB Driver Model | CDC ACM (in-box) | CDC ACM (in-box) | CDC ACM (in-box) | CP210x VCP (in-box on most OS) | FTDI VCP / D2xx (driver-installation required on older OS) |
| Internal 3.3V LDO | Yes, ~50 mA external | Yes, ~50 mA external | Yes, ~50 mA external | Yes | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Principais diferenciais
- Driver-free CDC ACM enumeration on every desktop OS (vs FTDI FT231XS)
- 8 configurable GPIO pins (vs Silicon Labs CP2102N)
- Industrial -40C to +85C temperature grade in the base part (vs FT231XS commercial-temperature variants)
Notas de projeto
The MCP2200-I draws its supply from the USB VBUS rail at 4.75V to 5.25V and includes an internal 3.3V LDO that powers the chip and can source up to ~50 mA to external circuitry. Place a 0.1 uF decoupling capacitor as close to the VDD pin as possible and a bulk 4.7 uF on VUSB if VBUS traces are long. Do not load VDD above ~50 mA - additional load should be powered from a separate 3.3V regulator. Estimated based on DS22228A electrical characteristics.
USB D+ and D+ traces should be 90 ohm differential, length-matched within 2 mm, and routed over a continuous ground plane. Keep the trace between the MCP2200-I and the USB connector under 50 mm where possible. The exposed pad variants are not used here (SOIC), so thermal dissipation is limited to the SOIC body; no copper pour is required for cooling at typical operating currents.
Do not assume the MCP2200-I is 5V tolerant on its UART lines - TXD, RXD, RTS, and CTS are 3.3V CMOS. If the host MCU operates at 5V, verify that its VIH threshold accepts 3.3V as a logic high (most modern 5V MCUs do, but some legacy 5V parts require 0.7xVCC = 3.5V). Add a 4.7 kohm pull-up on D+ to VUSB for full-speed enumeration. Do not leave the RESET pin floating in noisy environments - tie to VDD through a 10 kohm resistor if not driven by external logic.
The 8 GPIO pins have limited drive strength (a few mA sink/source per pin) and should not be used to drive relays, solenoids, or high-current LEDs directly. Use a buffer transistor (e.g. 2N7002) or logic-level MOSFET for any load above ~10 mA. The SSPND pin reflects USB suspend state and can be used to gate downstream regulators or disable external loads during host sleep, which is critical for battery-powered or bus-powered designs that need to honor USB suspend current budgets.
Informações de conformidade
RoHS, REACH, and conflict-minerals declarations per Microchip product page. Halogen-free status not explicitly stated in the datasheet excerpt; treat as unknown. The MCP2200-I is not AEC-Q100 qualified - automotive applications should evaluate the MCP2200-I-VAO or a qualified alternative.
