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ST16C1450CQ48(2005) Datasheet PDF - Exar Corporation

ST16C1450 image

Part Name
ST16C1450CQ48

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28 Pages

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400.4 kB

MFG CO.
Exar
Exar Corporation Exar

GENERAL DESCRIPTION
The ST16C1450 is a universal asynchronous receiver and transmitter (UART). The 1450 is foot print compatible to the SSI 73M1550 and SSI 73M2550 UART with one byte FIFO and higher operating speed and lower access time. The 1450 provides enhanced UART functions with a modem control interface, independent programmable baud rate generators with clock rates to 1.5 Mbps. On board status registers provide the user with error indications and operational status. System interrupts and modem control features may be tailored by external software to meet specific user requirements.


FEATURES
 • Pin and functionally compatible to SSI 73M1550/ 2550
 • 1 byte Transmit FIFO (THR)
 • 1 byte Receive FIFO with error tags (RHR)
 • Four levels of prioritized interrupts
 • Modem Control Signals (CTS#, RTS#, DSR#, DTR#, RI#, CD#)
 • Programmable character lengths (5, 6, 7, 8) with even, odd or no parity
 • Crystal or external clock input
 • 1.5 Mbps Transmit/Receive operation (24 MHz) with programmable clock control
 • Power Down Mode (50 uA at 3.3 V, 200 uA at 5 V)
 • Software controllable reset output
 • 2.97 to 5.5 Volt operation


APPLICATIONS
 • Battery Operated Electronics
 • Internet Appliances
 • Handheld Terminal
 • Personal Digital Assistants
 • Cellular Phones DataPort


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