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参数资料
| 型号： | CP2103-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： | 4/18页 |
| 文件大小： | 394K |
| 代理商： | CP2103-GMR |
CP2103
12
Preliminary Rev. 0.2
5. USB Function Controller and Transceiver
The Universal Serial Bus function controller in the CP2103 is a USB 2.0 compliant full-speed device with integrated
transceiver and on-chip matching and pull-up resistors. The USB function controller manages all data transfers
between the USB and the UART as well as command requests generated by the USB host controller and
commands for controlling the function of the UART.
The USB Suspend and Resume signals are supported for power management of both the CP2103 device as well
as external circuitry. The CP2103 will enter Suspend mode when Suspend signaling is detected on the bus. On
entering Suspend mode, the CP2103 asserts the SUSPEND and SUSPEND signals. SUSPEND and SUSPEND
are also asserted after a CP2103 reset until device configuration during USB Enumeration is complete.
The CP2103 exits the Suspend mode when any of the following occur: (1) Resume signaling is detected or
generated, (2) a USB Reset signal is detected, or (3) a device reset occurs. On exit of Suspend mode, the
SUSPEND and SUSPEND signals are de-asserted.
Both SUSPEND and SUSPEND temporarily float high during a CP2103 reset. If this behavior is undesirable, a
strong pulldown (10 k
) can be used to ensure SUSPEND remains low during reset. See Figure 6 for other
recommended options.
Figure 6. Typical Connection Diagram
Option 1: A 4.7 k
pull-up resistor can be added to increase noise immunity.
Option 2: A 4.7 F tantalum capacitor can be added if powering other devices from the on-chip regulator.
Option 3: Avalanche transient voltage suppression diodes should be added for ESD protection.
Option 3: Use Littlefuse p/n SP0503BAHT or equivalent.
Option 4: 10 k
resistor to ground to hold SUSPEND low on initial power on or device reset.
1
CP2103
SUSPEND
11
12
REGIN
7
GND
2
RST
9
D+
3
D-
4
8
C2
0.1
F
C1
1
F
RI
DCD
CTS
RTS
RXD
TXD
DSR
DTR
1
28
27
26
25
24
23
22
2
3
External RS-232
transceiver or
UART circuitry
(to external circuitry
for USB suspend
states)
VBUS
D-
D+
GND 4
5
6
USB
CONNECTOR
6
VDD
VBUS
VDD
R1
4.7 k
D1
D2
D3
Option 1
R2
10 k
Option 4
Option 3
C4
4.7
F
TANT
Option 2
VIO
5
1
F
I/O Voltage
GPIO.3
GPIO.2
GPIO.1
GPIO.0
19
18
17
16
External
Application
Circuitry
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CP2104 | 制造商:SILABS 制造商全称:SILABS 功能描述:USB DRIVER CUSTOMIZATION |
| CP2104EK | 功能描述:界面开发工具 Evaluation kit RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| CP2104-F03-GM | 功能描述:输入/输出控制器接口集成电路 USB to UART bridge RoHS:否 制造商:Silicon Labs 产品: 输入/输出端数量: 工作电源电压: 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-64 封装:Tray |
| CP2104-F03-GMR | 功能描述:输入/输出控制器接口集成电路 USB to UART bridge RoHS:否 制造商:Silicon Labs 产品: 输入/输出端数量: 工作电源电压: 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-64 封装:Tray |
| CP2104-MINIEK | 制造商:Silicon Laboratories Inc 功能描述:KIT EVAL FOR CP2104-MINI |
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