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TL16C452FNG4 bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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1 / 24 page 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. TL16C451, TL16C452 ASYNCHRONOUS COMMUNICATIONS ELEMENTS SLLS053C – MAY 1989 – REVISED AUGUST 1999 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Integrates Most Communications Card Functions From the IBM PC/AT ™ or Compatibles With Single- or Dual-Channel Serial Ports D TL16C451 Consists of One TL16C450 Plus Centronix Printer Interface D TL16C452 Consists of Two TL16C450s Plus a Centronix-Type Printer Interface D 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) D Fully Double Buffered for Reliable Asynchronous Operation description The TL16C451 and TL16C452 provide single- and dual-channel (respectively) serial interfaces along with a single Centronix-type parallel-port interface. The serial interfaces provide a serial-to-parallel conversion for data 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. 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. Copyright © 1999, Texas Instruments Incorporated IBM PC/AT is a trademark of International Business Machines Corporation. |
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