XR16C854 -Quad UART with RX/TX FIFO Counters and 128-Byte FIFO
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Quad UART with RX/TX FIFO Counters and 128-Byte FIFO
Specifications
Features
CH
4
CPUInterface
Intel or
Motorola
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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
Pb-Free, RoHS Compliant Versions Offered
Technical
Support
Packaging
Evaluation
Boards
128/128
Tx/RxFIFOCtrs
Yes
Tx/RxFIFOINT Trig
Program/
Program
AutoRTS/CTS
Yes
IrDaSup
Yes
5VTolInputs
Yes
Sup V
2.97-5.5
Pkgs
PLCC-68,
QFP-100,
LQFP-64
Documents
Datasheets
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Product
Change
Notifications
Tx/RxFIFO(Bytes)
Applications
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Cross
References
Data Rate@5/3.3/2.5V 2.0/1.5/na
Portable Appliances
Telecommunication Network Routers
Ethernet Network Routers
Cellular Data Devices
Factory Automation and Process Controls
Description
Obsolescence
Interface
Brochure
The XR16C8541 (854) is a universal asynchronous receiver and
transmitter (UART) with a dual foot print interface compatible with the
ST16C554D/654 and ST68C554/654.
IBIS Models
BSDL
ICI
UART Finder
The 854 is an enhanced UART with 128 byte FIFOs, Independent
Transmit and Receive FIFO counter, automatic hardware/software flow
control, and data rates up to 1.5Mbps. Onboard status registers provide
the user with error indications and operational status, modem interface
control. System interrupts may be tailored to meet user requirements. An
internal loop-back capability allows onboard diagnostics.
http://www.exar.com/Common/Content/ProductDetails.aspx?ID=XR16C854 (1 of 2) [31-Jul-09 10:58:47 AM]
Datasheet
Version 3.0.1
August 2005
1.17 MB
Application Notes
DAN-108, UART Crystal
Oscillator Design Guide
Version 1.0.0
March 2000
58.16 KB
DAN-133, EXAR's ST16C554
vs TL16C554
Version 1.0.0
April 2002
94.42 KB
