ST16C552 -Dual UART With 16-Byte FIFO and Parallel Printer Port
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Dual UART With 16-Byte FIFO and Parallel Printer Port
Specifications
Features
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2
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Pin to pin and functional compatible to ST16C452/452PS,
TL16C552
Software compatible with INS8250, NS16C550
1.5 Mbps transmit/receive operation (24MHz)
16 byte transmit FIFO
16 byte receive FIFO with error flags
Independent transmit and receive control
Modem and printer status registers
UART port and printer port Bi-directional
Printer port direction set by single control bit or 8 bit pattern
(AA/55)
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
Power down mode
Pb-Free, RoHS Compliant Versions Offered
Data Rate@5/3.3/2.5V 1.5/0.5/na
Tx/RxFIFO(Bytes)
16/16
Tx/RxFIFOCtrs
No
Tx/RxFIFOINT Trig
No/ 4
Levels
AutoRTS/CTS
No
IrDaSup
No
5VTolInputs
Yes
Sup V
2.97-5.5
Pkgs
PLCC-68
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Portable Appliances
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Description
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IBIS Models
The ST16C552/ST16C552A (552/552A) is a dual universal asynchronous
receiver and transmitter (UART) with an added bi-directional parallel port
that is directly compatible with a CENTRONICS type printer. The parallel
port is designed such that the user can configure it as general purpose I/O
interface, or for connection to other printer devices.
BSDL
ICI
UART Finder
The 552/552A provides enhanced UART functions with 16 byte FIFO’s, a
modem control interface, and data rates up to 1.5Mbps. Onboard status
registers provide the user with error indications and operational status.
The system interrupts and control may be tailored to meet user
requirements. An internal loop-back capability allows onboard diagnostics.
http://www.exar.com/Common/Content/ProductDetails.aspx?ID=ST16C552 (1 of 2) [31-Jul-09 11:26:25 AM]
Datasheets
Datasheet
Version 3.4.0
December 2003
222.87 KB
Application Notes
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
DAN-136, Exar's ST16C452
and ST16C552 Compared to
Texas Instruments' TL16C452
Version 1.0.0
June 2002
25.00 KB
