CP2104EK Silicon Laboratories Inc, CP2104EK Datasheet - Page 7

• Manufacturer Part Number: CP2104EK
• Description: KIT EVAL FOR CP2104
• Manufacturer: Silicon Laboratories Inc

Specifications of CP2104EK

• Main Purpose: Interface, USB 2.0 to UART (RS485) Bridge
• Embedded: No
• Utilized Ic / Part: CP2104
• 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: CP2104
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 336-2007

3. Pinout and Package Definitions
*Note: Pins can be left unconnected when not used.
SUSPEND
SUSPEND
GPIO.3
GPIO.2
GPIO.1
GPIO.0
REGIN
Name
VBUS
GND
RXD
DSR
DTR
DCD
RST
TXD
CTS
RTS
V
V
V
NC
D+
D–
RI
DD
PP
IO
Pin #
16*
18*
19*
22*
23*
24*
17*
15*
11*
12*
13*
14*
10*
21
20
1*
6
5
2
9
7
8
3
4
Power Out
Power In
Power In
Power In
Special
D Out
D Out
D Out
D Out
D Out
Type
D I/O
D I/O
D I/O
D I/O
D I/O
D I/O
D I/O
D In
D In
D In
D In
D In
D In
Table 7. CP2104 Pin Definitions
Power Supply Voltage Input.
Voltage Regulator Output. See Section 9.
Ground. Must be tied to ground.
Device Reset. Open-drain output of internal POR or V
external source can initiate a system reset by driving this pin low for
the time specified in Table 4.
5 V Regulator Input. This pin is the input to the on-chip voltage regu-
lator.
VBUS Sense Input. This pin should be connected to the VBUS signal
of a USB network.
Connect a 4.7 µF capacitor between this pin and ground to support
ROM programming via USB interface.
USB D+
USB D–
Asynchronous data output (UART Transmit)
Asynchronous data input (UART Receive)
Clear to Send control input (active low)
Ready to Send control output (active low)
Data Set Ready control input (active low)
Data Terminal Ready control output (active low)
Data Carrier Detect control input (active low)
Ring Indicator control input (active low)
This pin is logic high when the CP2104 is in the USB Suspend state.
This pin is logic low when the CP2104 is in the USB Suspend state.
User-configurable input or output.
User-configurable input or output.
User-configurable input or output.
User-configurable input or output.
This pin should be left unconnected or tied to V
I/O Supply Voltage Input.
Rev. 1.0
Description
IO
.
CP2104
DD
monitor. An
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