Features
- Single channel full-duplex UART
- Support I2C-bus or SPI interface
- 64 bytes FIFO (transmitter and receiver)
- Fully compatible with industrial standard 16C450 and
equivalent
- Baud Rates up to 16Mbit/s in 4X sampling clock rate
- Programmable character formatting
- 5-bit, 6-bit, 7-bit or 8-bit character
- Even, odd, or no parity
- 1, 1.5, or 2 stop bits
- Programmable Receive and Transmit FIFO trigger levels
- Special character detection
- Internal Loopback mode
- Line break generation and detection
Flow Control
- Support hardware flow control using RTS/CTS
- Support software flow control with programmable Xon/Xoff
characters
- Programmable single or double Xon/Xoff characters
Interface Control
- Automatic RS-485 slave address detection
- RS-485 driver direction control via RTS signal
- RS-485 driver direction control inversion
- Built-in IrDA encoder and decoder interface
- Supports IrDA SIR with speeds up to 115.2 kbit/s ( optional 1.152Mbps )
- Up to eight user programmable GPIO pins
- Software reset
Others
- Low standby current at 3.3 V
- Wide operation voltage (1.8V, 2.5V or 3.3V)
- Industrial and commercial temperature ranges
- Available in QFN24, TSSOP24 and TSSOP16 Packages
I2C Interface
- Compliant with I2C-bus fast speed
- Support slave mode only
- Crystal oscillator (up to 24MHz) or external clock (up to 64MHz) input
SPI Interface
- Support 33 Mbit/s maximum SPI clock speed
- Support SPI mode 0 (slave mode only)
- Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
- Halogen and Antimony Free. “Green” Device (Note 3)

Application
- Industrial computing
- Automation
- Factory process control
- Mobile computing
- Embedded applications
- Battery operated devices
- Networking