CP2105EK Silicon Laboratories Inc, CP2105EK Datasheet - Page 6

• Manufacturer Part Number: CP2105EK
• Description: KIT EVAL FOR CP2105
• Manufacturer: Silicon Laboratories Inc

Specifications of CP2105EK

• Main Purpose: Interface, Dual USB 2.0 to UART (RS485) Bridge
• Embedded: No
• Utilized Ic / Part: CP2105
• Primary Attributes: Full Speed (12Mbps)
• Secondary Attributes: LED Status Indicators
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3.3 V
• Product: Interface Development Tools
• For Use With/related Products: CP2105
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 336-2005

CP2105-EK
5.4. Power Connector (J4)
This header (J4) is included on the evaluation board to provide several power options. The following describes the
functions of the pins.
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5.5. SUSPEND LED Source Selector(J7, J8)
These headers (J7, J8) are included on the evaluation board to provide several options for the SUSPEND LED
source. The following describes the function of each pin:
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6
Pins 1–2 connect CP2105 VIO input (Pin 5) to CP2105 VDD (Pin 6). Remove the shorting block to power VIO
from an external source.
Pins 3–4 connect the main +3 V net to the CP2105 VDD (Pin 6). The main +3 V net powers the other
components (five green LEDs and RS-232 Sipex Part) on the board.
J7[1:2] connects CP2105 Standard UART SUSPEND output (Pin 1) to the SUSPEND LED.
J7[2:3] connects CP2105 Enhanced UART SUSPEND output (Pin 17) to the SUSPEND LED.
J7[2]:J8[1] connects the main +3 V net to the SUSPEND LED. This will cause the SUSPEND LED to act as a
power LED.
Rev. 0.4