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SN74F20NE4 Datasheet(PDF) 1 Page - Texas Instruments |
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SN74F20NE4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 16 page SN54F20, SN74F20 DUAL 4-INPUT POSITIVE-NAND GATES SDFS041A – MARCH 1987 – REVISED OCTOBER 1993 Copyright © 1993, Texas Instruments Incorporated 2–1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 • Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs description These devices contain two independent 4-input NAND gates. They perform the Boolean functions Y = A • B • C • D or Y = A + B + C + D in positive logic. The SN54F20 is characterized for operation over the full military temperature range of – 55 °C to 125 °C. The SN74F20 is characterized for operation from 0 °C to 70°C. FUNCTION TABLE (each gate) INPUTS OUTPUT A B C D Y H H H H L L XX X H X LX X H X XL X H X X X L H logic symbol† & 1Y 6 2Y 8 1 1A 2 1B 4 1C 5 1D 9 2A 10 2B 12 2C 13 2D † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the D, J, and N packages. logic diagram, each gate (positive logic) Y A B C D SN54F20 ...J PACKAGE SN74F20 ...D OR N PACKAGE (TOP VIEW) SN54F20 . . . FK PACKAGE (TOP VIEW) 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 2C NC NC NC 2B NC NC 1C NC 1D NC – No internal connection 1 2 3 4 5 6 7 14 13 12 11 10 9 8 1A 1B NC 1C 1D 1Y GND VCC 2D 2C NC 2B 2A 2Y 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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