CP2105-F01-GMR

The CP2105 is a highly integrated USB-to-Dual-UART Bridge Controller providing a simple solution for updating RS-232 designs to USB using a minimum of components and PCB space. The CP2105 includes a USB 2.0 fullspeed function controller, USB transceiver, oscillator, one-time programmable ROM, and two asynchronous serial data buses (UART) with full modem control signals in a compact 4x4 mm QFN-24 package (sometimes called "MLF" or "MLP"). The on-chip one-time programmable ROM may be used to customize the USB Vendor ID, Product ID, Product Description String, Power Descriptor, Device Release Number, Interface Strings, Device Serial Number, and Modem/GPIO configuration as desired for OEM applications. Royalty-free Virtual COM Port (VCP) device drivers provided by Silicon Labs allow a CP2105-based product to appear as two COM ports in PC applications. The CP2105 UART interfaces implement all RS-232 signals including control and handshaking, so existing system firmware does not need to be modified. The device also features a total of five GPIO signals that can be user-defined for status and control information. Support for I/O interface voltages down to 1.8V is provided via a V₁₀ pin. Direct access driver support is also available through the Silicon Labs USBXpress driver set.

Key features

• Integrated USB transceiver; no external resistors required
• Integrated clock; no external crystal required
• Integrated 296-Byte One-Time Programmable ROM for storing customizable product information
• On-chip power-on reset circuit
• On-chip voltage regulator: 3.45 V output
• USB Specification 2.0 compliant; full-speed (12 Mbps)
• USB Suspend states supported via SUSPEND pins
• Flow control options: Hardware (CTS/RTS), Software (X-On/X-Off), No flow control
• Configurable I/O (1.8V to VDD) using VIO pin
• Configurable I/O (VDPI to 5 V) using external pull-up
• All modem interface signals available (when GPIO is not used)
• Enhanced UART Interface Features:
• 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 bps to 2.0 Mbps
• 320 Byte receive and transmit buffers
• Two GPIO signals for status and control
• RS-485 mode with bus transceiver control
• Standard UART Interface Features:
• Data format: 8 data bits, 1 Stop bit
• Parity: Even, Odd, No parity
• Baud rates: 2400 bps to 921600 bps
• 288 Byte receive and transmit buffers
• Three GPIO signals for status and control
• Works with Existing COM Port PC Applications
• Royalty-Free Distribution License
• Windows 7/Vista/XP/Server 2003/2000
• Mac OS-X
• Linux
• USBXpressTM Direct Driver Support
• Royalty-Free Distribution License
• Windows 7/Vista/XP/Server 2003/2000
• Windows CE 6.0, 5.0, and 4.2
• Self-powered: 3.0 to 3.6V
• USB bus powered: 4.0 to 5.25V
• I/O voltage: 1.8V to VDD
• RoHS-compliant 24-pin QFN (4x4mm)
• Temperature Range: -40 to +85℃