CP2102N Datasheet, PDF (24/44 Pages) Silicon Laboratories – USBXpress Family

Pin
Number
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Center
Pin Name Description
CP2102N Data Sheet
Pin Definitions
D+
D-
VDD
VREGIN
VBUS
RSTb
NC
SUSPENDb
SUSPEND
CHREN
CHR1
CHR0
GPIO.3 /
WAKEUP
GPIO.2 /
RS485
GPIO.1 /
RXT
GPIO.0 /
TXT
GPIO.6
GPIO.5
GPIO.4
CTS
RTS
RXD
TXD
DSR
DTR
GND
USB Data Positive
USB Data Negative
Supply Power Input /
5V Regulator Output
5V Regulator Input
Digital Input. VBUS Sense Input. This pin should be connected to the VBUS signal of a USB
network. A 5 V signal on this pin indicates a USB network connection.
Active-low Reset
No Connect (leave this pin floating).
Digital Output. This pin is driven low when the device enters the USB suspend state.
Digital Output. This pin is driven high when the device enters the USB suspend state.
Digital Output. Enable charging circuit (100 mA).
Digital Output. Enable highest current (1.5 A).
Digital Output. Enable higher current (500 mA).
Digital Input/Output. General Purpose I/O.
Digital Input. Remote USB wakeup interrupt input.
Digital Input/Output. General Purpose I/O.
Digital Output. RS485 control signal.
Digital Input/Output. General Purpose I/O.
Digital Output. Receive LED toggle.
Digital Input/Output. General Purpose I/O.
Digital Output. Transmit LED toggle.
Digital Input/Output. General Purpose I/O.
Digital Input/Output. General Purpose I/O.
Digital Input/Output. General Purpose I/O.
Digital Input. Clear To Send control input (active low).
Digital Output. Ready To Send control output (active low).
Digital Input. Asynchronous data input (UART Receive).
Digital Output. Asynchronous data output (UART Transmit).
Digital Input. Data Set Ready control input (active low).
Digital Output. Data Terminal Ready control output (active low).
Ground
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.0 | 23