Overview
The CP2102-GMR, produced by Silicon Labs, is a highly-integrated single-chip USB-to-UART bridge controller. This device provides a straightforward solution for upgrading legacy RS-232 designs to USB, requiring a minimal number of components and PCB space. It is fully compliant with the USB 2.0 specification, operating at full-speed (12 Mbps), and supports USB suspend states via SUSPEND pins. The CP2102-GMR is 100% pin and software compatible with the CP2101 USB Function Controller, making it an ideal choice for various OEM applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Ambient Temperature under Bias | –55 | 125 | °C | |
| Storage Temperature | –65 | 150 | °C | |
| Supply Voltage (VDD) | 3.0 | 3.6 | V | |
| USB Bus Powered Voltage | 4.0 | 5.25 | V | |
| Maximum Total Current through VDD and GND | 500 | mA | ||
| Maximum Output Current sunk by RST or any I/O pin | 100 | mA | ||
| Baud Rate | 300 | 921600 | bps | |
| Package | 28-pin QFN (5x5 mm) |
Key Features
- Integrated USB transceiver; no external resistors required.
- Integrated clock; no external crystal required.
- Internal 1024-byte EEPROM 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).
- Supports all handshaking and modem interface signals (RTS, CTS, DSR, DTR, DCD, RI).
- Data formats supported: 5, 6, 7, and 8 data bits; 1, 1.5, and 2 stop bits; odd, even, mark, space, and no parity.
- Hardware or X-On/X-Off handshaking supported.
- Royalty-free Virtual COM Port (VCP) device drivers for Windows, MAC OS, and Linux.
Applications
- Upgrade of RS-232 legacy devices to USB.
- Cellular phone USB interface cables.
- PDA USB interface cables.
- USB to RS-232 serial adapters.
- Industrial control systems and automation.
- Medical devices requiring USB connectivity.
- Consumer electronics with USB interfaces.
Q & A
- What is the primary function of the CP2102-GMR? The CP2102-GMR is a single-chip USB-to-UART bridge controller, designed to convert RS-232 designs to USB.
- What is the operating temperature range of the CP2102-GMR? The operating temperature range is –40 to +85 °C.
- What is the maximum baud rate supported by the CP2102-GMR? The maximum baud rate supported is 921600 bps.
- Does the CP2102-GMR require external resistors or a crystal? No, it has an integrated USB transceiver and clock, eliminating the need for external resistors or a crystal.
- What types of data formats are supported by the CP2102-GMR? It supports data formats with 5, 6, 7, and 8 data bits; 1, 1.5, and 2 stop bits; and odd, even, mark, space, and no parity.
- Is the CP2102-GMR compatible with other Silicon Labs products? Yes, it is 100% pin and software compatible with the CP2101 USB Function Controller.
- What is the package type of the CP2102-GMR? The CP2102-GMR comes in a 28-pin QFN (5x5 mm) package.
- Does the CP2102-GMR support USB suspend states? Yes, it supports USB suspend states via SUSPEND pins.
- Are the VCP device drivers for the CP2102-GMR royalty-free? Yes, the Virtual COM Port (VCP) device drivers are royalty-free.
- What operating systems are supported by the CP2102-GMR VCP drivers? The VCP drivers support Windows, MAC OS, and Linux.
