ST16C580
UART with 16-Byte FIFOs and Infrared (IrDA) Encoder/Decoder

Features

  • Pin to pin and functionally compatible to the Industry Standard 16550
  • 1.5 Mbps transmit/receive operation (24MHz)
  • 16 byte transmit FIFO
  • 16 byte receive FIFO with error flags
  • Automatic hardware/software flow control
  • Programmable Xon/Xoff characters
  • Independent transmit and receive control
  • Software selectable Baud Rate Generator pre-scaleable clock rates of 1X or 4X
  • Four selectable transmit/receive FIFO interrupt trigger levels
  • Standard modem interface or Infrared IrDA encode/decoder interface
  • Sleep mode ( 200mA stand-by )
  • Low operating current ( 1.2mA typ.)
  • Pb-Free, RoHS Compliant Versions Offered
Applications

  • Battery Operated Electronics
  • Internet Appliances
  • Handheld Terminal
  • Personal Digital Assistants
  • Cellular Phones DataPort
Description
The ST16C5801 is a universal asynchronous receiver and transmitter (UART) and is pin compatible with the ST16C550 UART. The 580 is an enhanced UART with 16 byte FIFO’s, 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 is included and can be optionally configured to operate with the Infrared (IrDA) encoder/decoder. The system interrupts may be tailored to meet user requirements. An internal loop-back capability allows onboard diagnostics.

The 580 is available in 40 pin PDIP, 44 pin PLCC, and 48 pin TQFP packages. It is fabricated in an advanced CMOS process to achieve low drain power and high speed requirements.

NOTE: 1Covered by U.S. Patent #5,649,122.

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
ST16C580CQ48-FTQFP48TQFP48070Active
ST16C580IQ48-FTQFP48TQFP48-4085Active

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
CH1
CPUInterfaceIntel
Data Rate@5/3.3/2.5V1.5/0.5/na
Tx/RxFIFO(Bytes)16/16
Tx/RxFIFOCtrsNo
Tx/RxFIFOINT Trig4 Levels/ 4 Levels
AutoRTS/CTSYes
IrDaSupYes
5VTolInputsNo
Sup V2.97-5.5
PkgsTQFP-48
Documents
Datasheets
Datasheet
Version 1.2.2
August 2005
212.61 KB
Application Notes
DAN-107, Interfacing 16Cxxx UARTs to a CPU
Version 1.0.0
August 1999
32.43 KB
DAN-132, EXAR's ST16C550 vs. TL16C550C
Version 1.0.0
June 2002
121.52 KB
General UART Application Note
Version 1.0.0
December 1996
39.81 KB
AN-204, UART Sleep Mode
Version 1.0.0
June 2010
511.72 KB
Schematics
ISA Eval Board Schematic
Version 1.2.0
August 2007
81.36 KB
ISA Eval Board Schematic
Version 1.4.0
August 2007
77.56 KB
Manuals
Evaluation Board User's Manual
Version 1.3.0
July 2003
29.52 KB