CP2101 is the Single-Chip USB to UART Bridge

SINGLE-CHIP USB to UART DATA TRANSFER
-Integrated USB Transceiver; No External Resistors Required
-Integrated Clock; No External Crystal Required
-Integrated 512-Byte EEPROM 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: 3.3V Output
USB FUNCTION CONTROLLER
-USB Specification 2.0 Compliant; Full Speed (12?Mbps)
-USB suspend states supported via SUSPEND pins
ASYNCHRONOUS SERIAL DATA BUS (UART)
-All Handshaking and Modem Interface Signals
-Data Formats Supported:
?Data Bits: 8
?Stop Bits: 1, 2
?Parity: Odd, Even, No Parity
-Baud Rates: 300bps to 921.6kbps
-512 Byte Receive Buffer; 512 Byte Transmit Buffer
-Hardware or X-On / X-Off Handshaking Supported
-Event Character and Line Break Condition Support
VIRTUAL COM PORT DEVICE DRIVERS
-Works with Existing COM Port PC Applications
-Royalty-Free Distribution License
-Windows 98/Me/2000/XP
-MAC OS-9
-MAC OS-X
-Windows CE *
-Linux 2.40 and greater *
* (Contact factory for availability)
EXAMPLE APPLICATIONS
-Upgrade of RS-232 Legacy Devices to USB
-Cellular Phone USB Interface Cable
-PDA USB Interface Cable
-USB to RS-232 Serial Adapter
SUPPLY VOLTAGE
-Self-powered: 3.0V to 3.6V
-USB Bus Powered: 4.0V to 5.25V
PACKAGE
-28-pin MLP (5mm X 5mm)
TEMPERATURE RANGE: -40°C TO +85°C