ST16C454
Quad UART with a Dual Foot Print Interface

Features

  • Software compatibility with the Industry Standard 16C450
  • 1.5 Mbps transmit/receive operation (24MHz)
  • Independent transmit and receive control
  • Software selectable Baud Rate Generator
  • Modem control signals (-CTS, -RTS, -DSR, -DTR, -RI, -CD)
  • Programmable character lengths (5, 6, 7, 8)
  • Even, odd, or no parity bit generation and detection
  • Internal loop-back diagnostics
  • TTL compatible inputs, outputs
  • Low power
  • Pb-Free, RoHS Compliant Versions Offered
Applications

  • Portable Appliances
  • Telecommunication Network Routers
  • Ethernet Network Routers
  • Cellular Data Devices
  • Factory Automation and Process Controls
Description

The ST16C454 is a universal asynchronous receiver and transmitter (UART) with a dual foot print interface. The 454 is an enhanced UART with data rates up to 1.5Mbps and software compatible to ST16C450. 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.

The ST16C454 offer an additional 68 mode which allows easy integration with Motorola, and other popular microprocessors. The 454 combines the package interface modes of the ST16C454 and ST68C454 series on a single integrated chip.

For UART technical support or to obtain an IBIS model for this product, please email Exar's UART Technical Support group.
Part NumberPkg CodeRoHSMin
Temp.
(°C)		Max
Temp.
(°C)		StatusBuy NowOrder Samples
ST16C454CJ68-FPLCC68PLCC68070Active
ST16C454IJ68-FPLCC68PLCC68-4085Active

Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs. 
Specifications
CH4
CPUInterfaceIntel or Motorola
Data Rate@5/3.3/2.5V1.5/0.5/na
Tx/RxFIFO(Bytes)1/1
Tx/RxFIFOCtrsNo
Tx/RxFIFOINT TrigNo/No
AutoRTS/CTSNo
IrDaSupNo
5VTolInputsNo
Sup V2.97-5.5
PkgsPLCC-68
Documents
Datasheets
Datasheet
Version 3.3.1
August 2005
176.89 KB
Application Notes
AN-454, ST16C454 Application Example
Version 1.0.0
February 1997
77.71 KB
DAN-107, Interfacing 16Cxxx UARTs to a CPU
Version 1.0.0
August 1999
32.43 KB
DAN-108, UART Crystal Oscillator Design Guide
Version 1.0.0
March 2000
58.16 KB
General UART Application Note
Version 1.0.0
December 1996
39.81 KB
Schematics
ISA Eval Board Schematic
Version 1.1.0
September 2007
187.38 KB
Manuals
Evaluation Board User's Manual
Version 2.0.0
August 2003
17.28 KB