Datasheet

MCP2221
DS20005292A-page 2  2014 Microchip Technology Inc.
Package Types
Block Diagram
D-
D+
VSSVDD
MCP2221
PDIP/SOIC/TSSOP
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VUSBRST
URX
UTX
GP2 GP3
SDA
SCL
MCP2221
4x4QFN*
1
2
4
3
5678
9
10
11
12
13141516
EP
VDD
NC
UT
X
GP2
GP3
SDA
SCL
VUSB
D-
D+
VSS
NC
GP1
GP0
UR
X
RST
GP1
GP0
17
* Includes Exposed Thermal Pad (EP); see Tabl e 1- 1 .
USB HID
USB CDC
CONFIG
I
2
C Master
UART
BUS MATRIX
GPIO
ADC/DAC
USB
Bus
I
2
C
Bus
T
XD/RXD
GP Pins
PIN
MUX
IOC
CLKR
Internal
Oscillator
USB Module &
Transceiver