ST16C550

Features:

Pin to pin and functionally compatible to the Industry
Standard 16C550
2.97 to 5.5 volt operation
24MHz clock operation at 5V
16MHz clock operation at 3.3V
16 byte transmit FIFO
16 byte receive FIFO with error flags
Full duplex operation
Transmit and receive control
Four selectable receive FIFO interrupt trigger levels
Standard modem interface
Compatible with ST16C450
Low operating current ( 1.2mA typ.)




Pinout






Specifications

Specifications
CH	1
CPUInterface	Intel
Data Rate@5/3.3/2.5V	1.5/1.0/na
Tx/RxFIFO(Bytes)	16/16
Tx/RxFIFOCtrs	No
Tx/RxFIFOINT Trig	No/ 4 Levels
AutoRTS/CTS	No
IrDaSup	No
5VTolInputs	No
Sup V	2.97-5.5
Pkgs	PDIP-40, PLCC-44, TQFP-48

Specifications
CH	1
CPUInterface	Intel
Data Rate@5/3.3/2.5V	1.5/1.0/na
Tx/RxFIFO(Bytes)	16/16
Tx/RxFIFOCtrs	No
Tx/RxFIFOINT Trig	No/ 4 Levels
AutoRTS/CTS	No
IrDaSup	No
5VTolInputs	No
Sup V	2.97-5.5
Pkgs	PDIP-40, PLCC-44, TQFP-48

Description



The ST16C550 is a universal asynchronous receiver and transmitter with 16 byte transmit and receive FIFO. A programmable baud rate generator is pro- vided to select transmit and receive clock rates from 50 bps to 1.5 Mbps.

The ST16C550 is an improved version of the NS16C550 UART with higher operating speed and lower access time. The ST16C550 on board status registers provides the error conditions, type and status of the transfer operation being performed. Included is complete MODEM control capability, and a processor interrupt system that may be software tailored to the user's requirements. The ST16C550 provides internal loop-back capability for on board diagnostic testing.

The ST16C550 is available in 40-pin PDIP, 44-pin PLCC, and 48-pin TQFP packages. It is fabricated in an advanced 0.6m CMOS process to achieve low drain power and high speed requirements.

For UART technical support or to obtain an IBIS model for this product, please email Exar's UART Technical Support group.