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SN74F623DW データシート(PDF) 1 Page - Texas Instruments |
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SN74F623DW データシート(HTML) 1 Page - Texas Instruments |
1 / 5 page SN54F623, SN74F623 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDFS087 – MARCH 1987 – REVISED OCTOBER 1993 Copyright © 1993, Texas Instruments Incorporated 2–1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 • Local Bus-Latch Capability • Noninverting Logic • Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs description These octal bus transceivers are designed for asynchronous communication between data buses. The control function implementation allows for maximum flexibility in timing. These devices allow data transmission from the A bus to the B bus or from the B bus to the A bus depending upon the logic levels at the output enable (OEAB and OEBA) inputs. The output-enable inputs can be used to disable the device so that the buses are effectively isolated. The dual-enable configuration gives the transceivers the capability of storing data by simultaneously enabling OEAB and OEBA. Each output reinforces its input in this configuration. When both OEAB and OEBA are enabled and all other data sources to the two sets of bus lines are at high impedance, both sets of bus lines (16 in all) will remain at their last states. The SN54F623 is characterized for operation over the full military temperature range of – 55 °C to 125 °C. The SN74F623 is characterized for operation from 0 °C to 70°C. FUNCTION TABLE INPUTS OPERATION OEBA OEAB OPERATION L L B data to A bus L H B data to A bus, A data to B bus H L Isolation H H A data to B bus 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 OEAB A1 A2 A3 A4 A5 A6 A7 A8 GND VCC OEBA B1 B2 B3 B4 B5 B6 B7 B8 SN54F623 ...J PACKAGE SN74F623 . . . DW OR N PACKAGE (TOP VIEW) 3 2 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 SN54F623 . . . 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. |
同様の部品番号 - SN74F623DW |
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同様の説明 - SN74F623DW |
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