Overview
The CP2102N-A02-GQFN28R is a USB-to-UART bridge controller from Silicon Labs, designed to provide seamless and efficient USB connectivity with minimal development effort. This device is part of the USBXpress family and integrates a USB 2.0 full-speed function controller, USB transceiver, oscillator, and Universal Asynchronous Receiver/Transmitter (UART) in a compact QFN-28 package. It is ideal for a wide range of applications requiring reliable and high-speed serial communication.
Key Specifications
| Specification | Details |
|---|---|
| Package Type | QFN-28 |
| USB Standard | USB 2.0, Full Speed (12 Mbps) |
| Data Transfer Rate | Up to 3 Mbaud |
| Supply Voltage | 3.0 to 3.6 V or 3.0 to 5.25 V |
| Operating Temperature | -40°C to +85°C |
| Operating Current | 9.5 mA (typical) |
| UART Interface | Supports data bits: 5, 6, 7, 8; Stop bits: 1, 1.5, 2; Parity: odd, even, mark, space, no parity |
| Buffer Size | 512 byte receive buffer, 512 byte transmit buffer |
| Handshaking | Hardware or Xon/Xoff handshaking supported |
| GPIOs | 7 GPIOs available |
| Battery Charger Detection | USB Battery Charger Detection (USB BCS 1.2 Specification) |
| Remote Wakeup | Remote wakeup for waking a suspended host |
Key Features
- No firmware development required
- Simple GUI-based configurator
- 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 and voltage regulator (3.3 V output)
- Pin compatible with CP2101/2/9 (QFN28 package) and CP2104 (QFN24 package)
- USB suspend states supported via SUSPEND pins
- Royalty-free Virtual COM port drivers; works with existing COM port applications on Windows, Mac, and Linux
Applications
- POS terminals
- USB dongles
- Gaming controllers
- Medical equipment
- Data loggers
Q & A
- What is the primary function of the CP2102N-A02-GQFN28R?
The CP2102N-A02-GQFN28R is a USB-to-UART bridge controller, providing a seamless interface between USB and serial communication.
- What USB standard does the CP2102N-A02-GQFN28R comply with?
The device complies with the USB 2.0 standard, supporting full-speed operation at 12 Mbps.
- What are the operating voltage and temperature ranges for the CP2102N-A02-GQFN28R?
The device operates within a supply voltage range of 3.0 to 3.6 V or 3.0 to 5.25 V and an operating temperature range of -40°C to +85°C.
- Does the CP2102N-A02-GQFN28R require external components for the USB interface?
No, the device integrates the USB transceiver and clock, eliminating the need for external resistors and crystals.
- What kind of handshaking is supported by the CP2102N-A02-GQFN28R?
The device supports both hardware and Xon/Xoff handshaking.
- Is firmware development required for the CP2102N-A02-GQFN28R?
No, firmware development is not required; the device uses a simple GUI-based configurator.
- What operating systems are supported by the CP2102N-A02-GQFN28R?
The device supports Windows, Mac, and Linux operating systems.
- Does the CP2102N-A02-GQFN28R support remote wakeup?
- What is the typical operating current of the CP2102N-A02-GQFN28R?
The typical operating current is 9.5 mA.
- What are some common applications for the CP2102N-A02-GQFN28R?
