MCP2200-E/SS - USB 2.0 to UART Bridge, 12 Mbps, 20-SSOP | Microchip
N.º de pieza: MCP2200-E-SS ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.4 | $3,40 |
| 10 | $3.06 | $30,60 |
| 100 | $2.55 | $255,00 |
| 500 | $2.21 | $1.105,00 |
| 1.000 | $1.87 | $1.870,00 |
MCP2200-E-SS Descripción general
A USB-to-UART bridge is a category of bus converter that translates between USB device-class framing and asynchronous serial frames. The MCP2200 sits at the protocol-converter layer of a USB peripheral, just above the physical transceiver (which is integrated on-chip), and presents a CDC virtual COM port to the host operating system so that the existing UART firmware on a target MCU can communicate unmodified. The hypernym hierarchy is: USB-to-UART bridge -> protocol converter -> interface IC -> integrated circuit -> semiconductor.
Key features include integrated USB 2.0 full-speed transceiver (12 Mbps), on-chip 3.3 V LDO with up to 50 mA external load capability, suspend/resume signaling through the SSPND pin, configurable flow control (XON/XOFF, RTS/CTS), and a built-in bootloader for in-field firmware updates of the MCP2200's internal configuration via the host. The 256-byte EEPROM stores VID, PID, manufacturer string, product string, serial number, GPIO defaults, and the baud-rate divisor table.
The MCP2200 architecture pairs a USB 2.0 SIE (Serial Interface Engine) and a dedicated UART engine through a small configuration memory block accessible over the USB control endpoint. Driver support is provided through Microchip's virtual COM port (VCP) drivers for Windows, macOS, and Linux, plus the MCP2200 Configuration Utility for EEPROM programming. Because the host sees a CDC device, no custom driver is required on the application side.
Typical applications include industrial sensor-to-USB bridges, point-of-sale terminals, debug console expansion for MCU development boards, USB dongles for legacy RS-232 equipment, and isolated UART-over-USB adapters. The wide baud-rate range makes the part equally suitable for legacy 9600 baud sensor protocols and high-throughput 921 600 baud FPGA/JTAG console links.
When designing with this device, place a 100 nF decoupling capacitor close to VUSB and a 4.7 µF bulk capacitor on the VBUS sense line; the on-chip LDO requires an external 1 µF to 4.7 µF capacitor on the 3V3 pin. Maintain a 90 Ω differential impedance on the D+/D- pair to preserve USB signal integrity, and keep the SSPND trace short to avoid false suspend events.
This page synthesizes distributor pricing, drop-in and functional alternatives, and practical design notes beyond the manufacturer's datasheet, including pinout mapping, GPIO default state behavior, and host-driver deployment guidance.
Alternativas directas para MCP2200-E-SS — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MCP2200-I/SS
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MCP2221A-I/SS
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MCP2200-E-SS Especificaciones
| Función | USB 2.0 to UART Protocol Converter with GPIO |
| USB Speed | Full-Speed (12 Mbps) |
| UART Data Rate | 300 baud to 1 Mbaud |
| GPIO Pins | 8 (configurable) |
| User EEPROM | 256 bytes |
| Internal LDO Output | 3.3 V, up to 50 mA external load |
| Operating Voltage (VBUS) | 5.0 V (from USB) |
| Temperatura de funcionamiento | -40 °C to +85 °C (E = industrial) |
| Encapsulado | 20-pin SSOP (5.30 mm body) |
| Tipo de montaje | Surface Mount |
| Nivel MSL | 1 |
| Estado RoHS | Compliant |
| Lead-Free / Halogen-Free | Lead-free finish per Microchip datasheet |
| Host Driver | CDC/VCP driver (Windows, macOS, Linux) |
| Bootloader | USB bootloader for EEPROM configuration update |
Configuración de pines de MCP2200-E-SS
| Pin 1 | VDD — Internal 3.3 V regulator output (decoupling cap required) |
| Pin 2 | OSC1 — Crystal oscillator input (12 MHz typical per datasheet) |
| Pin 3 | OSC2 — Crystal oscillator output |
| Pin 4 | D- — USB differential data minus |
| Pin 5 | D+ — USB differential data plus |
| Pin 6 | VBUS — USB VBUS sense input (5 V) |
| Pin 7 | SSPND — Suspend indicator output (active low) |
| Pin 8 | GP0 — General-purpose I/O 0 |
| Pin 9 | GP1 — General-purpose I/O 1 |
| Pin 10 | GP2 — General-purpose I/O 2 |
| Pin 11 | GP3 — General-purpose I/O 3 |
| Pin 12 | GP4 — General-purpose I/O 4 |
| Pin 13 | GP5 — General-purpose I/O 5 |
| Pin 14 | GP6 — General-purpose I/O 6 |
| Pin 15 | GP7 — General-purpose I/O 7 |
| Pin 16 | RTS — UART request-to-send output |
| Pin 17 | CTS — UART clear-to-send input |
| Pin 18 | RX — UART receive input |
| Pin 19 | TX — UART transmit output |
| Pin 20 | VSS — Ground |
Aplicaciones típicas
MCP2200-E-SS es adecuado para 6 aplicacións: MCU Debug Console Expansion, Industrial Sensor-to-USB Bridge, Point-of-Sale (POS) Terminal Accessory, Legacy RS-232 Modernization Dongle, FPGA / JTAG Console Link, Isolated UART-over-USB Adapter.
MCU Debug Console Expansion
The MCP2200-E/SS adds a USB CDC virtual COM port to MCU development boards that lack native USB, exposing the target's UART as /dev/ttyACM0 on Linux or COMx on Windows. Its 1 Mbaud maximum UART data rate is more than sufficient for 115 200 baud debug consoles used by ARM Cortex-M and PIC microcontrollers, while the integrated 3.3 V LDO eliminates the need for an extra regulator on the debug board. Unlike FTDI bridges, the MCP2200 uses the CDC class so most IDEs (MPLAB X, STM32CubeIDE, PlatformIO) detect it without manual driver setup, reducing bring-up friction.
Recomendado
Industrial Sensor-to-USB Bridge
In industrial settings where RS-232 or RS-485 sensors must be tapped for diagnostics, the MCP2200-E/SS provides a USB-attached UART bridge that the host sees as a serial port — no custom driver needed. The -40 °C to +85 °C industrial temperature grade handles factory-floor environments, and the 8 GPIO pins allow the host to toggle sensor power or read status LEDs without an additional I/O expander. Place an external level translator (MAX3232) when interfacing true ±12 V RS-232 sensors; for TTL-level UART sensors the MCP2200 connects directly.
Recomendado
Point-of-Sale (POS) Terminal Accessory
POS printers, barcode scanners, and cash-drawer triggers commonly expose UART control lines; the MCP2200-E/SS converts that to a CDC virtual COM port so POS application software can communicate over USB without rewriting the firmware on the accessory side. The 256-byte configuration EEPROM stores vendor-specific VID/PID and serial strings so the device identifies itself as a branded POS accessory rather than a generic USB-serial bridge. The integrated 3.3 V LDO with 50 mA output can power low-current peripherals (LED indicators, optocouplers) without a second regulator.
Recomendado
Legacy RS-232 Modernization Dongle
Older lab instruments, CNC controllers, and industrial PLCs ship with DB-9 RS-232 ports that modern PCs no longer have; the MCP2200-E/SS inside a USB-to-DB-9 dongle brings them back to life. The MCP2200's CDC enumeration means no driver installation is needed on macOS or Linux, and Windows users get a signed Microchip VCP driver. Add an external MAX3232 for true ±12 V RS-232 levels; the MCP2200 handles only TTL UART on its pins. The dongle inherits the MCP2200's industrial temperature grade, suitable for shop-floor and field-service use.
Recomendado
FPGA / JTAG Console Link
FPGA development boards often expose a UART console for debug output from soft cores (RISC-V, MicroBlaze, Nios II); the MCP2200-E/SS connects that UART to a host PC over USB at 921 600 baud or 1 Mbaud, fast enough for streaming printf-style debug logs. The wide GPIO count (8 pins) can be repurposed as JTAG or SPI helpers via the configuration EEPROM, turning the MCP2200 into a small multi-function debug bridge. Linux hosts see /dev/ttyACM0 instantly, and the device is hot-plug safe — pulling the USB cable stops output cleanly without crashing the FPGA logic.
Recomendado
Isolated UART-over-USB Adapter
When debugging grounded equipment or medical devices, ground loops can corrupt UART signals — placing an isolation barrier (ADuM1411 or similar digital isolator) between the MCP2200-E/SS and the target UART prevents that. The MCP2200's 3.3 V LDO can power the host-side of the isolator while the target side draws its own isolated supply. This topology is widely used in medical device service ports and high-voltage lab equipment where the host PC must remain galvanically isolated from the device under test.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MCP2200-E-SS — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MCP2200-I/SS | MCP2221A-I/SS |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP (5.30 mm) | 20-SSOP (5.30 mm) - same | 20-SSOP - same |
| Function | USB 2.0 to UART + 8 GPIO | USB 2.0 to UART + 8 GPIO | USB 2.0 to UART/I2C + 4 GPIO |
| USB Speed | Full-Speed (12 Mbps) | Full-Speed (12 Mbps) | Full-Speed (12 Mbps) |
| Max UART Baud | 1 Mbaud | 1 Mbaud | 1 Mbaud |
| GPIO Count | 8 | 8 | 4 |
| I2C Controller | No | No | Yes |
| User EEPROM | 256 bytes | 256 bytes | 256 bytes |
| Internal 3.3 V LDO | Yes (50 mA) | Yes (50 mA) | Yes |
| Host Driver | Microchip CDC/VCP | Microchip CDC/VCP | Microchip CDC/VCP |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
Diferenciadores clave
- Integrated 3.3 V LDO with 50 mA external load capability (frente a FTDI FT232R)
- CDC-class driver compatibility (no proprietary driver on Linux/macOS) (frente a WCH CH340G)
- 8 GPIO + 256-byte EEPROM storage for VID/PID customization (frente a Silicon Labs CP2102N)
Notas de diseño
Route the D+/D- USB differential pair with 90 Ω differential impedance and keep total length under 50 mm on the breakout board; place the common-mode choke and ESD protection array (e.g., USBLC6-2SC6) within 10 mm of the USB connector. Decouple VBUS with a 4.7 µF bulk capacitor and a 100 nF ceramic cap placed close to pin 6. Decouple VDD (pin 1) with 1 µF to 4.7 µF per the datasheet to keep the internal 3.3 V LDO stable under the 50 mA external load step.
The 12 MHz crystal on OSC1/OSC2 must be a fundamental-mode type with the load capacitance specified by the datasheet (typically 18 pF to 33 pF depending on the chosen part). Place the crystal within 5 mm of the OSC pins and guard the traces with a ground pour to attenuate EMI. A series-termination resistor is not required on D+/D- because the USB transceiver integrates the matching, but avoid stubs on the differential pair that would skew the impedance.
Estimated: At 100 mA VBUS draw and 5 V input, the internal LDO dissipates roughly (5 V − 3.3 V) × 0.1 A = 170 mW — well within the SSOP-20 thermal budget at 25 °C ambient, but expect derating above 60 °C. If the downstream circuit draws near the 50 mA LDO limit, add a small copper pour under the exposed SSOP pad region (where present) and avoid placing the device next to a heat source. Do not feed the LDO output back into VBUS, and do not exceed the absolute-maximum VBUS rating of 6 V.
Keep the SSPND pin trace short and route it away from the USB differential pair to prevent capacitive coupling that could cause false suspend events. The 8 GPIO pins can source/sink only a few mA each per the datasheet; if you need to drive LEDs or relays, buffer them through a transistor or external FET. Reserve the VID/PID EEPROM programming step for the final assembly stage, since re-flashing via the USB bootloader requires the host to issue a specific control transfer sequence.
Información de cumplimiento
RoHS and lead-free compliance per Microchip product page. REACH SVHC status should be confirmed with the specific lot's certificate of compliance. Not AEC-Q100 qualified; for automotive USB-to-UART bridges consider FTDI FT232R automotive-grade variants.
