Mecatronico

MCP2200
USB 2.0 to UART Protocol Converter with GPIO
Features
Universal Serial Bus (USB) • Supports full-speed USB (12 Mb/s) • Implements USB protocol composite device: - Communication Device Class (CDC) for communications and configuration - Human Interface Device (HID) for I/O control • 128-byte buffer to handle data throughput at any UART baud rate: - 64-byte transmit - 64-byte receive •Fully configurable VID and PID assignments, and string descriptors • Bus powered or self-powered • USB 2.0 Compliant: TID 40001150 USB Driver and Software Support • Uses standard Windows® drivers for Virtual Com Port (VCP): Windows XP (SP2 or later), Vista, 7 • Configuration utility for initial configuration Universal Asynchronous Receiver/Transmitter (UART) • Responds to SET LINE CODING commands todynamically change baud rates • Supports baud rates: 300-1000k • Hardware flow control • UART signal polarity option General Purpose Input/Output (GPIO) Pins • Eight general purpose I/O pins EEPROM • 256 bytes of user EEPROM Other • USB activity LED outputs (TxLED and RxLED) • SSPND output pin • USBCFG output pin (indicates when the enumeration is completed) • Operating voltage: 3.0-5.5V •Oscillator input: 12 MHz • ESD protection: > 4 kV HBM • Industrial (I) Operating Temperature: -40°C to +85°C
RST 1 GP7/TxLED 2 GP6/RxLED 3 GP5 4 GP4 5 6 GP3 7 TX 8 RTS 9 10 RX CTS DS22228B-page 1 EP 21

Package Types
The device will be offered in the following packages: • 20-lead QFN (5 x 5 mm) • 20-lead SOIC • 20-lead SSOP

MCP2200 SOIC, SSOP
VDD 1 OSC1 2 OSC2 3 RST 4 GP7/TxLED 5 GP6/RxLED 6 GP57 GP4 8 GP3 9 TX 10 20 VSS 19 D+ 18 D17 VUSB 16 GP0/SSPND 15 GP1/USBCFG 14 GP2 13 CTS 12 RX 11 RTS

MCP2200 5x5 QFN*
OSC2 OSC1 VDD VSS D+ 15 D14 VUSB 13 GP0/SSPND 12 GP1/USBCFG 11 GP2

20 19 18 17 16

* Includes Exposed Thermal Pad (EP); see Table 1-1.

 2011 Microchip Technology Inc.

MCP2200
Block Diagram

GP5 GP3 GP1 TXLED/ RXLED/ GP4 GP2 GP0 GP7 GP6

Configuration andControl Registers

256 Byte EEPROM

GPIO

USB LEDs

TX RX CTS RTS
Baud Generator State USB Clock Clock VSS Osc Reset 3.3V LDO UART Controller Control USB Protocol Controller USB Transceiver

D+ DVUSB

VSS

OSC1 OSC2

RST

VDD

DS22228B-page 2

 2011 Microchip Technology Inc.

MCP2200
1.0 FUNCTIONAL DESCRIPTION
The MCP2200 is a USB-to-UART serial converter which enables USBconnectivity in applications that have a UART interface. The device reduces external components by integrating the USB termination resistors. The MCP2200 also has 256 bytes of integrated user EEPROM. The MCP2200 has eight general purpose input/output pins. Four pins have alternate functions to indicate USB and communication status. See Table 1-1 and Section 1.6 “GPIO Module” for details about thepin functions.

TABLE 1-1:
Pin Name GP0/SSPND GP1/USBCFG GP2 GP3 GP4 GP5 GP6/RxLED GP7/TxLED RST CTS RX RTS TX VDD VSS OSC1 OSC2 D+ DVUSB

PINOUT DESCRIPTION
SSOP, Pin QFN SOIC Type 16 15 14 9 8 7 6 5 4 13 12 11 10 1 20 2 3 19 18 17 13 12 11 6 5 4 3 2 1 10 9 8 7 18 17 19 20 16 15 14 I/O I/O I/O I/O I/O I/O I/O I/O I I I O O P P I O I/O I/O P Standard Function General purpose I/O Generalpurpose I/O General purpose I/O General purpose I/O General purpose I/O General purpose I/O General purpose I/O General purpose I/O Reset input must be externally biased Hardware flow control “Clear to Send” input signal USART RX input Hardware flow control “Request to Send” output signal USART TX output Power Ground Oscillator input Oscillator output USB D+ USB DUSB power pin (internally connected to3.3V). Should be locally bypassed with a high quality ceramic capacitor. Exposed Thermal Pad (EP). Do not electrically connect. USB receive activity LED output (refer to Section 1.6.1.3) USB transmit activity LED output (refer to Section 1.6.1.4) Alternate Function USB suspend status pin (refer to Section 1.6.1.1) USB configuration status pin (refer to Section 1.6.1.2)

EP

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21

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