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SN74F245DW Scheda tecnica(PDF) 1 Page - Texas Instruments |
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SN74F245DW Scheda tecnica(HTML) 1 Page - Texas Instruments |
1 / 7 page SN54F245, SN74F245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDFS010A – MARCH 1987 – REVISED OCTOBER 1993 Copyright © 1993, Texas Instruments Incorporated 2–1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 • 3-State Outputs Drive Bus Lines Directly • Package Options Include Plastic Small-Outline (SOIC) and Shrink Small-Outline (SSOP) Packages, Ceramic Chip Carriers, and Plastic and Ceramic DIPs description These octal bus transceivers are designed for asynchronous communication between data buses. The devices transmit data from the A bus to the B bus or from the B bus to the A bus depending upon the logic level at the direction-control (DIR) input. The output enable (OE) input can be used to disable the device so the buses are effectively isolated. The SN74F245 is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count and functionality of standard small-outline packages in less than half the printed-circuit-board area. The SN54F245 is characterized for operation over the full military temperature range of – 55 °C to 125 °C. The SN74F245 is characterized for operation from 0 °C to 70°C. FUNCTION TABLE INPUTS OPERATION OE DIR OPERATION L L B data to A bus L H A data to B bus H X Isolation 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 DIR A1 A2 A3 A4 A5 A6 A7 A8 GND VCC OE B1 B2 B3 B4 B5 B6 B7 B8 SN54F245 ...J PACKAGE SN74F245 . . . DB, DW, OR N PACKAGE (TOP VIEW) 32 1 20 19 9 10 11 12 13 4 5 6 7 8 18 17 16 15 14 B1 B2 B3 B4 B5 A3 A4 A5 A6 A7 SN54F245 . . . FK PACKAGE (TOP VIEW) 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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