参数资料
型号: CP2102-GMR
厂商: SILICON LABORATORIES
元件分类: 总线控制器
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, QCC28
封装: 5 X 5 MM, LEAD FREE, QFN-28
文件页数: 15/18页
文件大小: 373K
代理商: CP2102-GMR
CP2102
6
Rev. 1.1
4. Pinout and Package Definitions
Table 4. CP2102 Pin Definitions
Name
Pin #
Type
Description
VDD
6
Power In
Power Out
3.0–3.6 V Power Supply Voltage Input.
3.3 V Voltage Regulator Output. See <PDF link>Section 10.
GND
3
Ground
RST
9
D I/O
Device Reset. Open-drain output of internal POR or VDD monitor.
An external source can initiate a system reset by driving this pin low
for at least 15 s.
REGIN
7
Power In
5 V Regulator Input. This pin is the input to the on-chip voltage reg-
ulator.
VBUS
8
D In
VBUS Sense Input. This pin should be connected to the VBUS sig-
nal of a USB network. A 5 V signal on this pin indicates a USB net-
work connection.
D+
4
D I/O
USB D+
D–
5
D I/O
USB D–
TXD
26
D Out
Asynchronous data output (UART Transmit)
RXD
25
D In
Asynchronous data input (UART Receive)
CTS
23*
D In
Clear To Send control input (active low)
RTS
24*
D Out
Ready to Send control output (active low)
DSR
27*
D in
Data Set Ready control input (active low)
DTR
28*
D Out
Data Terminal Ready control output (active low)
DCD
1*
D In
Data Carrier Detect control input (active low)
RI
2*
D In
Ring Indicator control input (active low)
SUSPEND
12*
D Out
This pin is driven high when the CP2102 enters the USB suspend
state.
SUSPEND
11*
D Out
This pin is driven low when the CP2102 enters the USB suspend
state.
NC
10, 13–22
These pins should be left unconnected or tied to VDD.
*Note: Pins can be left unconnected when not used.
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