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CP2105-GM Datasheet(PDF) 7 Page - Silicon Laboratories |
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CP2105-GM Datasheet(HTML) 7 Page - Silicon Laboratories |
7 / 24 page CP2105 Rev. 1.0 7 3. Pinout and Package Definitions Table 7. CP2105 Pin Definitions Name Pin # Type Description VDD 6 Power In Power Out Power Supply Voltage Input. Voltage Regulator Output. See Section 10. VIO 5 Power In I/O Supply Voltage Input. GND 2 Ground. Must be tied to 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 the time specified in Table 4. REGIN 7 Power In 5 V Regulator Input. This pin is the input to the on-chip voltage regulator. VBUS 8 D In VBUS Sense Input. This pin should be connected to the VBUS signal of a USB network. D+ 3 D I/O USB D+ D– 4 D I/O USB D– SUSPEND RI_SCI 1* D Out D In In GPIO mode, this pin indicates whether the device is in the USB Suspend or not. The polarity can be configured via the configuration PROM, and defaults to active-low. In modem control mode, this pin is the Ring Indicator control input (active low) for the Standard Comm Interface. GPIO.0_SCI DCD_SCI 24* D I/O D In In GPIO mode, this pin is a user-configurable input or output for the Standard Comm Interface. In modem control mode, this pin is the Data Carrier Detect control input (active low) for the Standard Comm Interface. GPIO.1_SCI DTR_SCI 23* D I/O D Out In GPIO mode, this pin is a user-configurable input or output for the Standard Comm Interface. In modem control mode, this pin is the Data Terminal Ready control output (active low) for the Standard Comm Interface. GPIO.2_SCI DSR_SCI 22* D I/O D in In GPIO mode, this pin is a user-configurable input or output for the Standard Comm Interface. In modem control mode, this pin is the Data Set Ready control input (active low) for the Standard Comm Interface. TXD_SCI 21 D Out Asynchronous data output (UART Transmit) for the Standard Comm Inter- face. RXD_SCI 20 D In Asynchronous data input (UART Receive) for the Standard Comm Interface. RTS_SCI 19* D Out Ready to Send control output (active low) for the Standard Comm Interface. *Note: Pins can be left unconnected when not used. |
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