MCP2200 datasheet(3/34 Pages) MICROCHIP

3 / 34 page

 2010 Microchip Technology Inc.

DS22228A-page 3

MCP2200

1.0

FUNCTIONAL DESCRIPTION

The MCP2200 is a USB-to-UART serial converter

which enables USB connectivity 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 the pin

functions.

TABLE 1-1:

PINOUT DESCRIPTION

Name

SSOP,

SOIC

QFN

Type

Standard Function

Alternate Function

GP0/SSPND

I/O General purpose I/O

USB suspend status pin (refer to

Section 1.6.1.1 “SSPND Pin

Function”

)

GP1/USBCFG

I/O General purpose I/O

USB configuration status pin

(refer to Section 1.6.1.2 “USB-

CFG Pin Function”

)

GP2

I/O General purpose I/O

GP3

I/O General purpose I/O

GP4

I/O General purpose I/O

GP5

I/O General purpose I/O

GP6/RxLED

I/O General purpose I/O

USB receive activity LED output

(refer to Section 1.6.1.3

“RxLED Pin Function (IN Mes-

sage)”

)

GP7/TxLED

I/O General purpose I/O

USB transmit activity LED output

(refer to Section 1.6.1.4

“TxLED Pin Function (OUT

Message)”

)

RST

Reset input must be externally biased

CTS

Hardware flow control “Clear to Send” input

signal

USART RX input

RTS

Hardware flow control “Request to Send” output

signal

USART TX output

VDD

118

Power

VSS

Ground

OSC1

Oscillator input

OSC2

Oscillator output

D+

I/O USB D+

D-

I/O USB D-

VUSB

USB power pin (internally connected to 3.3V).

Should be locally bypassed with a high quality

ceramic capacitor.

—

Exposed Thermal Pad (EP). Do not electrically

connect, or connect to VSS.

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