- 您现在的位置：买卖IC网 > PDF目录16810 > CP2104EK (Silicon Laboratories Inc)KIT EVAL FOR CP2104 PDF资料下载
参数资料
| 型号： | CP2104EK |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 9/22页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR CP2104 |
| 产品培训模块： | CP21xx USB Bridge |
| 标准包装： | 1 |
| 主要目的： | 接口，USB 2.0 至 UART（RS485）电桥 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | CP2104 |
| 主要属性： | 全速（12Mbps） |
| 次要属性： | LED 状态指示器 |
| 已供物品： | 板，线缆，CD |
| 相关产品： | 336-2008-5-ND - IC SGL USB-TO-UART BRIDGE 24QFN |
| 其它名称： | 336-2007 |
CP2104
Rev. 1.1
17
9. Voltage Regulator
The CP2104 includes an on-chip 5.0 to 3.45 V voltage regulator. This allows the CP2104 to be configured as either
a USB bus-powered device or a USB self-powered device. A typical connection diagram of the device in a bus-
powered application using the regulator is shown in Figure 8. When enabled, the voltage regulator output appears
on the VDD pin and can be used to power external devices. See Table 5 for the voltage regulator electrical
characteristics.
If the regulator is used to provide VDD in a self-powered application, use the same connections from Figure 8, but
connect REGIN to an onboard 5 V supply, and disconnect it from the VBUS pin. In addition, if REGIN may be
unpowered while VBUS is 5 V, a resistor divider shown in Note 5 of Figure 9 is required to meet the absolute
maximum voltage on VBUS specification in Table 1.
Figure 8. Typical Bus-Powered Connection Diagram
Note 3
Note 2
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
1
F
1-5
F
0.1
F
3.45 V Power
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.
VPP
4.7
F
Note 4
To external circuitry for
status and control
相关PDF资料 |
PDF描述 |
|---|---|
| GMM08DTAI | CONN EDGECARD 16POS R/A .156 SLD |
| 202A174-100/180-0 | BOOT MOLDED |
| V300C3V3T50BG | CONVERTER MOD DC/DC 3.3V 50W |
| VERSAFIT-3/64-6-SP | HEAT SHRINK TUBING |
| CP2112EK | KIT EVAL FOR CP2112 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| CP2104SX0810GM | 制造商:Silicon Laboratories Inc 功能描述: |
| CP2104SX0810GMR | 制造商:Silicon Laboratories Inc 功能描述: |
发布紧急采购，3分钟左右您将得到回复。