Features
- 1.62V to 3.6V with 5V Tolerant Serial Inputs
- Programmable Sleep Mode with automatic wake-up
- Intel or Motorola Data Bus Interface select
- Each UART is independently controlled with:
- 16C550 Compatible Register Set
- 64-byte Transmit and Receive FIFOs
- Transmit and Receive FIFO Level Counters
- Programmable TX and RX FIFO Trigger Levels for
DMA and Interrupt Generation
- Programmable Receive FIFO Trigger Levels for
Software/Hardware Flow Control
- Programmable hysteresis(Table A-D) for Software/
Hardware Flow Control
- Automatic RTS/CTS Flow Control
- Automatic Xon/Xoff Software Flow Control with
Optional Data Flow Resume by Xon Any Character
- DMA Signaling Capability for both Received and
Transmitted Data
- RS485 HDX Control Output
- RS485 auto address detection
- Infrared (IrDA 1.0/1.1) Data Encoder/Decoder
- Programmable Data Rate with Prescaler
- Up to 16 Mbps Serial Data Rate with 64MHz external clock
input
- Crystal oscillator(up to 24MHz) or external clock(up to
80MHz) input
- Built in Power-On-Reset circuit
- Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
- Halogen and Antimony Free. “Green” Device (Note 3)

Application
- Remote Access Servers
- Ethernet Network to Serial Ports
- Network Management
- Factory Automation and Process Control
- Point-of-Sale Systems
- Multi-port RS-232/RS-422/RS-485 Cards