GENERAL DESCRIPTION
The XR16L7841 (784) is a quad Universal Asynchronous Receiver and Transmitter (UART). The device is designed for high bandwidth requirement in communication systems.
FEATURES
● 2.97V to 5.5V operation with 5V Tolerant Inputs
● 8-bit Intel or Motorola Data Bus Interface
● Single Open Drain Interrupt output for all 4
channels
● Global Interrupt Source Registers for all channels
● 5G (Fifth Generation) “Flat” Register Set
● Each UART is Independently Controlled with:
■ 16C550 Compatible Registers
■ 64-byte Transmit and Receive FIFOs
■ Transmit and Receive FIFO Level Counters
■ Programmable TX and RX FIFO Trigger Levels
■ Automatic RTS/CTS or DTR/DSR Flow Control
■ Selectable RTS Flow Control Hysteresis
■ Automatic Xon/Xoff Software Flow Control
■ Automatic RS485 Half-duplex Control Output
with 16 Selectable Turn-around Delay
■ Infrared (IrDA 1.1) Data Encoder/Decoder
■ Programmable Data Rate with Prescaler
■ Up to 3.12 (16x) and 6.25 (8x) Mbps Data Rate
● A General Purpose 16-bit Timer/Counter
● Sleep Mode with Automatic Wake-up Indicator
● 64-pin LQFP Package (10x10x1.4 mm)
APPLICATIONS
● 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