CP2105EK Silicon Laboratories Inc, CP2105EK Datasheet - Page 8

• Manufacturer Part Number: CP2105EK
• Description: KIT EVAL FOR CP2105
• Manufacturer: Silicon Laboratories Inc

Specifications of CP2105EK

• Main Purpose: Interface, Dual USB 2.0 to UART (RS485) Bridge
• Embedded: No
• Utilized Ic / Part: CP2105
• Primary Attributes: Full Speed (12Mbps)
• Secondary Attributes: LED Status Indicators
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3.3 V
• Product: Interface Development Tools
• For Use With/related Products: CP2105
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 336-2005

CP2105
8
*Note: Pins can be left unconnected when not used.
GPIO.0_ECI
GPIO.1_ECI
SUSPEND
DCD_ECI
DSR_ECI
RXD_ECI
CTS_SCI
DTR_ECI
TXD_ECI
RTS_ECI
CTS_ECI
RI_ECI
Name
V
NC
PP
Pin #
18*
17*
16*
15*
14*
11*
10*
13
12
Special
D Out
D Out
D Out
D Out
Type
D I/O
D I/O
D In
D In
D In
D in
D In
D In
—
Table 7. CP2105 Pin Definitions (Continued)
Clear To Send control input (active low) for the Standard Comm Interface.
In GPIO mode, this pin indicates whether the device is in the USB Suspend or
not. The polarity can be configured via the configuration PROM, and defaults
to active-low.
In modem control mode, this pin is the Ring Indicator control input (active low)
for the Standard Comm Interface.
In GPIO mode, this pin is not used.
In modem control mode, this pin is the Data Carrier Detect control input
(active low) for the Enhanced Comm Interface.
Additionally, in either mode programming of the configuration ROM via the
USB interface can be accomplished if a 4.7 F capacitor is connected
between this pin and GND.
In GPIO mode, this pin is a user-configurable input or output for the
Enhanced Comm Interface.
In modem control mode, this pin is the Data Terminal Ready control output
(active low) for the Enhanced Comm Interface.
In GPIO mode, this pin is a user-configurable input or output for the
Enhanced Comm Interface.
In modem control mode, this pin is the Data Set Ready control input (active
low) for the Enhanced Comm Interface.
Asynchronous data output (UART Transmit) for the Enhanced Comm Inter-
face.
Asynchronous data input (UART Receive) for the Enhanced Comm Interface.
Ready to Send control output (active low) for the Enhanced Comm Interface.
Clear To Send control input (active low) for the Enhanced Comm Interface.
Rev. 1.0
Description