MCP2200
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.
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.
TABLE 1-1:
PINOUT DESCRIPTION
Pin
Name
SSOP,
SOIC
Pin
Type
QFN
Standard Function
Alternate Function
GP0/SSPND
16
13 I/O General purpose I/O
USB suspend status pin (refer to
Section 1.6.1.1 “SSPND Pin
Function”)
GP1/USBCFG 15
12 I/O General purpose I/O
USB configuration status pin
(refer to Section 1.6.1.2 “USB-
CFG Pin Function”)
GP2
GP3
GP4
GP5
14
9
8
7
6
11
6
5
4
3
I/O General purpose I/O
I/O General purpose I/O
I/O General purpose I/O
I/O General purpose I/O
I/O General purpose I/O
GP6/RxLED
USB receive activity LED output
(refer to Section 1.6.1.3
“RxLED Pin Function (IN Mes-
sage)”)
GP7/TxLED
5
2
I/O General purpose I/O
USB transmit activity LED output
(refer to Section 1.6.1.4
“TxLED Pin Function (OUT
Message)”)
RST
CTS
4
1
I
I
Reset input must be externally biased
13
10
Hardware flow control “Clear to Send” input
signal
RX
12
11
9
8
I
USART RX input
RTS
O
Hardware flow control “Request to Send” output
signal
TX
10
1
20
2
7
O
P
P
I
USART TX output
Power
Ground
Oscillator input
Oscillator output
VDD
VSS
OSC1
OSC2
D+
18
17
19
20
3
O
19
18
17
16 I/O USB D+
15 I/O USB D-
14
D-
VUSB
P
USB power pin (internally connected to 3.3V).
Should be locally bypassed with a high quality
ceramic capacitor.
EP
—
21
—
Exposed Thermal Pad (EP). Do not electrically
connect, or connect to VSS.
2010 Microchip Technology Inc.
DS22228A-page 3
MICROCHIP [ MICROCHIP ]
