Alternatively, if 3.0 to 3.6 V power is supplied to the VDD pin, the" />
參數(shù)資料
型號(hào): CP2104-F03-GM
廠商: Silicon Laboratories Inc
文件頁(yè)數(shù): 10/22頁(yè)
文件大?。?/td> 0K
描述: IC SGL USB-TO-UART BRIDGE 24QFN
產(chǎn)品培訓(xùn)模塊: CP21xx USB Bridge
標(biāo)準(zhǔn)包裝: 75
應(yīng)用: UART 至 USB 電橋
接口: UART,USB
電源電壓: 1.8V,3 V ~ 3.6 V
封裝/外殼: 24-WFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝: 24-QFN(4x4)
包裝: 管件
安裝類型: 表面貼裝
配用: 336-2007-ND - KIT EVAL FOR CP2104
其它名稱: 336-2008-5
CP2104
18
Rev. 1.1
Alternatively, if 3.0 to 3.6 V power is supplied to the VDD pin, the CP2104 can function as a USB self-powered
device with the voltage regulator bypassed. For this configuration, tie the REGIN input to VDD to bypass the voltage
regulator. A typical connection diagram showing the device in a self-powered application with the regulator
bypassed is shown in Figure 9.
The USB max power and power attributes descriptor must match the device power usage and configuration. See
application note “AN721: CP210x/CP211x Device Customization Guide” for information on how to customize USB
descriptors for the CP2104.
Figure 9. Typical Self-Powered Connection Diagram (Regulator Bypass)
Note 1
VBUS
D+
D-
GND
USB
Connector
To external circuitry for
USB suspend states
Standard
UART
Signals
CP2104
RI
DCD
GPIO.2
GPIO.3
GPIO.0
GPIO.1
SUSPEND
DTR
DSR
RTS
CTS
TXD
RXD
REGIN
VDD
GND
VIO
VBUS
D+
D-
RST
0.1
F
VIO
4.7 k
Note 1 : Avalanche transient voltage suppression diodes compatible with Full-speed USB should be
added at the connector for ESD protection. Use Littelfuse p/n SP0503BAHT or equivalent.
Note 2 : An external pull-up is not required, but can be added for noise immunity.
Note 3 : VIO can be connected directly to VDD or to a supply as low as 1.8 V to set the I/O interface
voltage.
Note 4 : If configuration ROM is to be programmed via USB, a 4.7
F capacitor must be added
between VPP and ground. During a programming operation, the pin should not be
connected to other circuitry, and VDD must be at least 3.3 V.
Note 5 : For self-powered systems where VDD and VIO may be unpowered when VBUS is connected
to 5 V, a resistor divider (or functionally-equivalent circuit) on VBUS is required to meet the
absolute maximum voltage on VBUS specification in the Electrical Characteristics section.
VPP
4.7
F
Note 4
To external circuitry for
status and control
1-5
F
3.3 V
Power
Note 2
Note 3
47 k
24 k
Note 5
(Optional)
相關(guān)PDF資料
PDF描述
CP2105-F01-GM IC SGL USB-DL UART BRIDGE 24QFN
CP2112-F01-GM IC HID USB-TO-SMBUS BRIDGE 24QFN
CP2120-GM IC I/O EXPANDER I2C/SPI 8B 20QFN
CP2200-GQ IC ETH CTRLR SNGL-CHIP 48TQFP
CP80C86-2Z IC CPU 16BIT 5V 8MHZ 40-PDIP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CP2104-F03-GMR 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
CP2104-MINIEK 制造商:Silicon Laboratories Inc 功能描述:KIT EVAL FOR CP2104-MINI
CP2104SX0810GM 制造商:Silicon Laboratories Inc 功能描述:
CP2104SX0810GMR 制造商:Silicon Laboratories Inc 功能描述:
CP2105 制造商:SILABS 制造商全稱:SILABS 功能描述:USB DRIVER CUSTOMIZATION