Datenblatt-Suchmaschine für elektronische Bauteile |
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74AC11643 Datenblatt(PDF) 1 Page - Texas Instruments |
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74AC11643 Datenblatt(HTML) 1 Page - Texas Instruments |
1 / 5 page 74AC11643 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS SCAS057A − JULY 1987 − REVISED APRIL 1993 Copyright 1993, Texas Instruments Incorporated 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 • Bidirectional Bus Transceivers in High-Density 24-Pin Packages • Flow-Through Architecture Optimizes PCB Layout • Center-Pin V CC and GND Configurations Minimize High-Speed Switching Noise • EPIC (Enhanced-Performance Implanted CMOS) 1- µm Process • 500-mA Typical Latch-Up Immunity at 125 °C • Package Options Include Plastic Small-Outline Packages and Standard Plastic 300-mil DIPs description These octal bus transceivers are designed for asynchronous communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. The 74AC11643 is characterized for operation from − 40 °C to 85°C. FUNCTION TABLE INPUTS OPERATION OE DIR OPERATION L L B data to A bus L HA data to B bus H X Isolation logic symbol† logic diagram (positive logic) 1 2 A1 B1 3 EN1 [BA] 24 DIR 3 EN2 [AB] 1 A1 2 A2 B1 23 3 A3 4 A4 9 A5 10 A6 11 A7 12 A8 B2 22 B3 21 B5 17 B4 20 B6 16 B8 14 B7 15 OE 1 13 24 23 1 G3 13 OE DIR 1 To 7 Other Channels † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. DW OR NT PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 A1 A2 A3 A4 GND GND GND GND A5 A6 A7 A8 DIR B1 B2 B3 B4 VCC VCC B5 B6 B7 B8 OE EPIC is a trademark of 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. |
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Ähnliche Beschreibung - 74AC11643 |
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