Single Chip USB Asynchronous Serial Data Transfer
Full Handshaking & Modem Interface Signals
UART I/F Supports 7 / 8 Bit Data, 1 / 2 Stop Bits and Odd/Even/Mark/Space/No Parity
Data rate 300 => 3M Baud (TLL)
Data rate 300 => 1M Baud (RS232)
Data rate 300 => 3M Baud (RS422/RS485)
384 Byte Receive Buffer / 128 Byte Transmit Buffer for high data throughput
Adjustable RX buffer timeout
Full hardware assisted hardware or
X-On / X-Off handshaking
In-built support for event characters and line break condition
Auto Transmit Buffer control for RS485
Support for USB Suspend / Resume through SLEEP# and RI# pins
Support for high power USB Bus powered devices through PWREN# pin
Integrated level converter on UART and control signals for interfacing to 5v and 3.3v logic
Integrated 3.3v regulator for USB IO
Integrated Power-On-Reset circuit
Integrated 6MHz - 48Mhz clock multiplier PLL
USB Bulk or Isocronous data transfer modes
4.4v to 5.25v single supply operation
UHCI / OHCI / EHCI host controller compatible
USB 1.1 and USB 2.0 compatible
USB VID, PID , Serial Number and Product Description strings in external EEPROM
EEPROM programmable on-board via USB VIRTUAL COM PORT ( VCP ) DRIVERS for
- Windows 98 and Windows 98 SE
- Windows 2000 / ME / XP
- Windows CE **
- MAC OS-8 and OS-9
- MAC OS-X **
- Linux 2.40 and greater D2XX ( USB Direct Drivers + DLL S/W Interface )
- Windows 98 and Windows 98 SE
- Windows 2000 / ME / XP
[ ** = In planning or under development ]


APPLICATION AREAS
- USB - RS232 Converters
- USB - RS422 / RS485 Converters
- Upgrading RS232 Legacy Peripherals to USB
- Cellular and Cordless Phone USB data transfer cables and interfaces
- Interfacing MCU based designs to USB
- USB Audio and Low Bandwidth Video data transfer
- PDA - USB data transfer
- USB Smart Card Readers
- Set Top Box (S.T.B ) PC - USB interface
- USB Hardware Modems
- USB Wireless Modems
- USB Instrumentation
- USB Bar Code Readers