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參數(shù)資料
| 型號： | CP2101-GMR |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 4/20頁 |
| 文件大小： | 0K |
| 描述： | IC CTRLR BRIDGE USB-UART 28MLP |
| 產(chǎn)品培訓(xùn)模塊： | CP21xx USB Bridge |
| 標(biāo)準(zhǔn)包裝： | 1,500 |
| 應(yīng)用： | USB |
| 接口： | USB |
| 電源電壓： | 3 V ~ 3.6 V |
| 封裝/外殼： | 28-VFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 28-QFN（5x5） |
| 包裝： | 帶卷 (TR) |
| 安裝類型： | 表面貼裝 |
CP2101
12
Rev. 1.8
5. USB Function Controller and Transceiver
The Universal Serial Bus function controller in the CP2101 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 CP2101 device
as well as external circuitry. The CP2101 will enter Suspend mode when Suspend signaling is detected
on the bus. On entering Suspend mode, the CP2101 asserts the SUSPEND and SUSPEND signals.
SUSPEND and SUSPEND are also asserted after a CP2101 reset until device configuration during USB
Enumeration is complete
The CP2101 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 CP2101 reset. If this behavior is undesir-
able, a strong pulldown (10 k
) can be used to ensure SUSPEND remains low during reset. See
Figure 5.1 for other recommended options.
Option 1: A 4.7 k
pull-up resistor can be added to increase noise immunity.
Option 2: A 4.7
F capacitor can be added if powering other devices from the on-chip regulator.
Option 3: Avalanche transient voltage suppression diodes can 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
CP2101
SUSPEND
11
12
REGIN
7
GND
3
RST
9
D+
4
D-
5
8
C2
0.1
F
C1
1
F
RI
DCD
CTS
RTS
RXD
TXD
DSR
DTR
2
1
28
27
26
25
24
23
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
Option 2
Figure 5.1. Typical Connection Diagram
6. Asynchronous Serial Data Bus (UART) Interface
The CP2101 UART interface consists of the TX (transmit) and RX (receive) data signals as well as the
RTS, CTS, DSR, DTR, DCD and RI control signals. The UART supports RTS/CTS, DSR/DTR and X-On/X-
Off handshaking.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CP2101R | 功能描述:輸入/輸出控制器接口集成電路 USB to UART Bridge RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| CP2102 | 功能描述:輸入/輸出控制器接口集成電路 USE 634-CP2102-GM RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| CP2102EK | 功能描述:界面開發(fā)工具 for CP2102 Enhanced USB-UART Bridge Chip RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| CP2102GM | 制造商:Silicon Laboratories Inc 功能描述: 制造商:SILLAB 功能描述: |
| CP2102-GM | 功能描述:輸入/輸出控制器接口集成電路 USB to UART Bdg Chip RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
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