CP2101EK Silicon Laboratories Inc, CP2101EK Datasheet - Page 5

• Manufacturer Part Number: CP2101EK
• Description: KIT DEVELOPMENT RS232 TO USB
• Manufacturer: Silicon Laboratories Inc

Specifications of CP2101EK

• Processor To Be Evaluated: CP2101
• Interface Type: RS-232, USB
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 336-1076; CP2101EK; Q1572300

5.2. UART Signals (J1, J2)
A RS232 transceiver circuit and DB-9 connector (J1) are provided on the evaluation board to connect the CP2101
virtual serial port to external serial devices. See Table 2 for the RS232 J1 pin descriptions. The J2 connector is pro-
vided to facilitate direct access to the CP2101’s UART signals. Shorting blocks on J2 are required to connect the
UART signals to J1. See Table 3 for J2 pin descriptions.
11-12
13-14
15-16
Pins
8-10
Pin
1-2
3-4
5-6
7-8
1
2
3
4
5
6
7
8
9
Signal
GND
DCD
RXD
DSR
TXD
DTR
RTS
CTS
Signal
Table 2. RS232 Pin Descriptions
RI
DCD
TXD
RXD
DTR
DSR
CTS
RTS
RI
Table 3. J2 Pin Descriptions
Direction
CP2101
Direction
Output
Output
Output
CP2101
Input
Input
Input
Input
Input
Output
Output
Output
Input
Input
Input
Input
Rev. 0.8
Data Terminal Ready
Data Carrier Detect
Data Terminal Ready
Request to Send
Data Carrier Detect
Data Set Ready
Transmit Data
Clear to Send
Ring Indicator
Request to Send
Description
Receive Data
Data Set Ready
Transmit Data
Ring Indicator
Clear to Send
Description
Receive Data
Ground
CP2101-EK
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