CP2101 Silicon Laboratories Inc, CP2101 Datasheet - Page 6

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CP2101

Manufacturer Part Number
CP2101
Description
IC USB-TO-UART BRIDGE 28MLP
Manufacturer
Silicon Laboratories Inc
Datasheet

Specifications of CP2101

Applications
USB
Interface
USB
Voltage - Supply
3 V ~ 3.6 V
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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4.
*Note: Pins can be left unconnected when not used.
SUSPEND
SUSPEND
REGIN
Name
VBUS
GND
DCD
RST
TXD
RXD
CTS
DSR
DTR
RTS
V
NC
D+
D–
RI
DD
Pinout and Package Definitions
10, 13–22
Pin #
23*
24*
27*
28*
12*
11*
26
25
1*
2*
6
3
9
7
8
4
5
Power In
Power In
Table 4.1. Pin Definitions for the CP2101
Power
D Out
D Out
D Out
D Out
D Out
Type
D I/O
D I/O
D I/O
D In
D In
D In
D in
D In
D In
Out
Description
3.0–3.6 V Power Supply Voltage Input.
3.3 V Voltage Regulator Output. See Section 9.
Ground
Device Reset. Open-drain output of internal POR or V
external source can initiate a system reset by driving this pin low for
at least 15 µs.
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. A 5 V signal on this pin indicates a USB network
connection.
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 driven high when the CP2101 enters the USB suspend
state.
This pin is driven low when the CP2101 enters the USB suspend
state.
These pins should be left unconnected or tied to V
Rev. 1.6
DD
CP2101
DD
.
monitor. An
6

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