Products > Integrated Circuits (ICs) > Interface ICs > CP2102N-A01-GQFN28
  • CP2102N-A01-GQFN28

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Interface Bridges, USB to UART, 3 V, 3.6 V, QFN, 28 Pins, -40 °C

  • Package/Case :
  • QFN28
  • Product Categories :
  • Controllers
  • RoHs Status:
  • Lead free/RoHS Compliant
  • In-stock:
  • 24000


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CP2102N-A01-GQFN28 Product Details

CP2102N-A01-GQFN28 Silicon Labs, USB Bridge, USB to UART USB 2.0 UART Interface 28-QFN (5x5)



The Universal Serial Bus function controller in the CP2102N 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 CP2102N device as well as external circuitry. The CP2102N will enter Suspend mode when Suspend signaling is detected on the bus. On entering Suspend mode, the CP2102N asserts the SUSPEND and SUSPENDb signals. SUSPEND and SUSPENDb are also asserted after a CP2102N reset until device configuration during USB Enumeration is complete. 

The CP2102N exits Suspend mode when any of the following occur:

1. Resume signaling is detected or generated.
2. A USB Reset signal is detected.
3. A device reset occurs.
4. USB Remote Wakeup functionality is enabled and the WAKEUP pin is grounded.

On exit of Suspend mode, the SUSPEND and SUSPENDb signals are de-asserted. Both SUSPEND and SUSPENDb temporarily float high during a CP2102N reset. If this behavior is undesirable, a strong pull-down (10 kΩ) can be used to ensure SUSPENDb remains low during reset.


• Single-Chip USB-to-UART Data Transfer
• Integrated USB transceiver; no external resistors required
• Integrated clock; no external crystal required
• Internal 960-byte programmable ROM for vendor ID, product
  ID, serial number, power descriptor, release number,
  and product description strings
• On-chip power-on reset circuit
• On-chip voltage regulator — 3.3 V output
• Pin compatible with CP2101/2/9 (QFN28 package)
• Pin compatible with CP2104 (QFN24 package)
• USB Function Controller
• USB Specification 2.0 compliant; full-speed (12 Mbps)
• USB suspend states supported via SUSPEND pins
• USB Battery Charger Detection (USB BCS 1.2 Specification)
• Remote wakeup for waking a suspended host
• Single power supply of 3.0 to 3.6 V or 3.0 to 5.25 V
• Universal Asynchronous Receiver/Transmitter (UART)
• All handshaking and modem interface signals
• Data formats supported
• Data bits — 5, 6, 7, and 8
• Stop bits — 1, 1.5, and 2
• Parity — odd, even, mark, space, no parity
• Baud rates: 300 baud to 3 Mbaud
• 512 byte receive buffer
• 512 byte transmit buffer
• Hardware or Xon/Xoff handshaking supported
• Virtual COM Port Device Drivers
• Works with existing COM port Applications
• Supported on Windows, Mac, and Linux
• Royalty-free distribution license
• Direct Driver Support
• Royalty-free distribution license

CP2102N-A01-GQFN28 Block Diagram
(Picture: Diagram)

Technical Parameters

  • Current Supply
  • 9.5mA
  • Function
  • Bridge, USB to UART
  • Interface
  • UART
  • Operating Temperature
  • -40掳C ~ 85掳C
  • Package / Case
  • 28-WFQFN Exposed Pad
  • Packaging
  • Tray
  • Part Status
  • Active
  • Protocol
  • USB
  • Standards
  • USB 2.0
  • Voltage Supply
  • 2.2 V ~ 3.6 V

CP2102N-A01-GQFN28 Documents

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    Gutes Produkt. Schnelle Lieferung. Danke gerne wieder!

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