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TL16C452 PDF预览

TL16C452

更新时间: 2024-11-21 22:42:11
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德州仪器 - TI 通信
页数 文件大小 规格书
23页 310K
描述
ASYNCHRONOUS COMMUNICATIONS ELEMENTS

TL16C452 数据手册

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TL16C451, TL16C452  
ASYNCHRONOUS COMMUNICATIONS ELEMENTS  
SLLS053C – MAY 1989 – REVISED AUGUST 1999  
Integrates Most Communications Card  
Functions From the IBM PC/AT or  
Compatibles With Single- or Dual-Channel  
Serial Ports  
Fully Programmable Serial Interface  
Characteristics:  
– 5-, 6-, 7-, or 8-Bit Characters  
– Even-, Odd-, or No-Parity Bit Generation  
and Detection  
– 1-, 1 1/2-, or 2 Stop-Bit Generation  
– Programmable Baud Rate  
(dc to 256 kbit/s)  
TL16C451 Consists of One TL16C450 Plus  
Centronix Printer Interface  
TL16C452 Consists of Two TL16C450s Plus  
a Centronix-Type Printer Interface  
Fully Double Buffered for Reliable  
Asynchronous Operation  
description  
The TL16C451 and TL16C452 provide single- and dual-channel (respectively) serial interfaces along with a  
singleCentronix-typeparallel-portinterface. Theserialinterfacesprovideaserial-to-parallelconversionfordata  
received from a peripheral device or modem and a parallel-to-serial conversion for data transmitted by a CPU.  
The parallel interface provides a bidirectional parallel data port that fully conforms to the requirements for a  
Centronix-type printer interface. A CPU can read the status of the asynchronous communications element  
(ACE) interfaces at any point in the operation. The status includes the state of the modem signals (CTS, DSR,  
RLSD, and RI) and any changes to these signals that have occurred since the last time they were read, the state  
of the transmitter and receiver including errors detected on received data, and printer status. The TL16C451  
and TL16C452 provide control for modem signals (RTS and DTR), interrupt enables, baud rate programming,  
and parallel-port control signals.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
IBM PC/AT is a trademark of International Business Machines Corporation.  
Copyright 1999, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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