
Exar Corporation
GENERAL DESCRIPTION
The XR28V384 (V384) is a quad Universal Asynchronous Receiver and Transmitter (UART) for the Intel Low Pin Count (LPC) bus interface. This device can replace or supplement a Super I/O device to add additional serial ports to the system.
FEATURES
● 128 Byte Transmit and Receive FIFO
● Compliant to LPC 1.1 Specifications
● -40°C to +85°C Industrial Temp Operation
● Watchdog Timer with WDTOUT# signal
● 4 Independent UART channels
■ Programmable I/O mapped base addresses
■ Data rates up to 3 Mbps
■ Selectable RX FIFO interrupt trigger levels
■ Auto RS-485 Half-Duplex Control mode
■ Programmable character lengths (5, 6, 7, 8)
with even, odd, or no parity
■ IrDA mode and separate IRTXA# and IRRXA#
pins for the first UART channel
■ 9-bit (Multidrop) mode
● External 24MHz/48MHz clock
● Single 3.3V Supply Voltage ( ±10% )
● 5V tolerant inputs
● 48-TQFP package (7mm x 7mm)
APPLICATIONS
● Industrial and Embedded PCs
● Factory Automation and Process Controls
● Network Routers
● System Board Designs