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See Technical Specifications

XR16C854 +BOM

QUADUARTWITHRX/TXFIFOCOUNTERS,128-BYTEFIFO

Manufacturer:

EXAR
Mfr.Part #:

XR16C854
Datasheet:

XR16C854 Datasheet (PDF)
Package/Case:

QFP-10
EDA/CAD Models:

Request Free CAD Models for XR16C854

XR16C854 General Description

GENERAL DESCRIPTIONThe XR16C854/854D1 (854) is an enhanced quad Universal Asynchronous Receiver and Transmitter (UART) each with 128 bytes of transmit and receive FIFOs, transmit and receive FIFO counters and trigger levels, automatic hardware and software flow control, and data rates of up to 2 Mbps. Each UART has a set of registers that provide the user with operating status and control, receiver error indications, and modem serial interface controls. System interrupts may be tailored to meet design requirements. An internal loopback capability allows onboard diagnostics. The 854 is available in 64-pin LQFP, 68-pin PLCC and 100-pin QFP packages. The 64-pin package only offers the 16 mode interface, but the 68 and 100 pin packages offer an additional 68 mode interface which allows easy integration with Motorola processors.FEATURESAdded feature in devices with top mark date code of "F2 YYWW" and newer: ■ 5 volt tolerant inputs• 2.97 to 5.5 Volt Operation• Pin-to-pin compatible with the industry standard ST16C554 and ST16C654 and TI’s TL16C554N and TL16C754BFN• Intel or Motorola Data Bus Interface select• Four independent UART channels ■ Register Set Compatible to 16C550 ■ Data rates of up to 2 Mbps ■ Transmit and Receive FIFOs of 128 bytes ■ Programmable TX and RX FIFO Trigger Levels ■ Transmit and Receive FIFO Level Counters ■ Automatic Hardware (RTS/CTS) Flow Control ■ Selectable Auto RTS Flow Control Hysteresis ■ Automatic Software (Xon/Xoff) Flow Control ■ Wireless Infrared (IrDA 1.0) Encoder/Decoder• Sleep Mode (200 uA typical)• Crystal oscillator or external clock inputAPPLICATIONS• Portable Appliances• Telecommunication Network Routers• Ethernet Network Routers• Cellular Data Devices• Factory Automation and Process Controls

Key Features

Added feature in devices with top mark date code of "F2 YYWW" and newer:
5 volt tolerant inputs
2.97 to 5.5 Volt Operation
Pin-to-pin compatible with the industry standard ST16C554 and ST16C654 and TI’s TL16C554N and TL16C754BFN
Intel or Motorola Data Bus Interface select
Four independent UART channels
Register Set Compatible to 16C550
Data rates of up to 2 Mbps
Transmit and Receive FIFOs of 128 bytes
Programmable TX and RX FIFO Trigger Levels
Transmit and Receive FIFO Level Counters
Automatic Hardware (RTS/CTS) Flow Control
Selectable Auto RTS Flow Control Hysteresis
Automatic Software (Xon/Xoff) Flow Control
Wireless Infrared (IrDA 1.0) Encoder/Decoder
Sleep Mode (200 uA typical)
Crystal oscillator or external clock input