CP2103-GMR Silicon Laboratories Inc, CP2103-GMR Datasheet - Page 4

• Manufacturer Part Number: CP2103-GMR
• Description: IC CTRLR BRIDGE USB-UART 28MLP
• Manufacturer: Silicon Laboratories Inc

Specifications of CP2103-GMR

• Applications: USB
• Interface: USB
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Mounting Type: Surface Mount
• For Use With: 336-1163 - KIT EVAL FOR CP2103 USB TO UART
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CP2103
1. System Overview
The CP2103 is a highly-integrated USB-to-UART Bridge Controller providing a simple solution for updating
RS-232/RS-485 designs to USB using a minimum of components and PCB space. The CP2103 includes a USB
2.0 full-speed function controller, USB transceiver, oscillator, EEPROM, and asynchronous serial data bus (UART)
with full modem control signals in a compact 5x5 mm QFN-28 package (sometimes called “MLF” or “MLP”). No
other external USB components are required.
The on-chip EEPROM may be used to customize the USB Vendor ID, Product ID, Product Description String,
Power Descriptor, Device Release Number, and Device Serial Number as desired for OEM applications. The
EEPROM is programmed on-board via the USB, allowing the programming step to be easily integrated into the
product manufacturing and testing process.
Royalty-free Virtual COM Port (VCP) device drivers provided by Silicon Laboratories allow a CP2103-based
product to appear as a COM port to PC applications. The CP2103 UART interface implements all RS-232/RS-485
signals, including control and handshaking signals; so, existing system firmware does not need to be modified. The
device also features up to four GPIO signals that can be user-defined for status and control information. Support
for I/O interface voltages down to 1.8 V is provided via a V
pin. In many existing RS-232 designs, all that is
IO
required to update the design from RS-232 to USB is to replace the RS-232 level-translator with the CP2103.
Direct access driver support is available through the Silicon Laboratories USBXpress driver set. Go to
www.silabs.com
for the latest application notes and product support information for CP2103.
An evaluation kit for the CP2103 (Part Number: CP2103EK) is available. It includes a CP2103-based USB-to-
UART/RS-232 evaluation board, a complete set of VCP device drivers, USB and RS-232 cables, and complete
documentation. Contact a Silicon Labs sales representatives or visit
www.silabs.com
to order the CP2103
Evaluation Kit.
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