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SN74ALS33AD Datasheet(PDF) 1 Page - Texas Instruments |
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SN74ALS33AD Datasheet(HTML) 1 Page - Texas Instruments |
1 / 4 page SN54ALS33A, SN74ALS33A QUADRUPLE 2-INPUT POSITIVE-NOR BUFFERS WITH OPEN-COLLECTOR OUTPUTS SDAS034B – APRIL 1982 – REVISED DECEMBER 1994 Copyright © 1994, Texas Instruments Incorporated 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 • Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs description These devices contain four independent 2-input positive-NOR buffers with open-collector outputs. Open-collector outputs require resistive pullup to perform correctly. They can deliver higher VOH levels and commonly are used in wired-AND applications. These devices perform the Boolean functions Y = A • B or Y = A + B in positive logic. The SN54ALS33A is characterized for operation over the full military temperature range of – 55 °C to 125 °C. The SN74ALS33A is characterized for operation from 0 °C to 70°C. FUNCTION TABLE (each gate) INPUTS OUTPUT A B Y H X L X HL L L H logic symbol† logic diagram (positive logic) 2 1A 3 1B 5 2A 6 2B 8 3A 9 3B 11 4A 12 4B 1Y 1 2Y 4 3Y 10 4Y 13 ≥1 1Y 3 2Y 6 3Y 8 4Y 11 1 2 1A 1B 4 5 2A 2B 9 10 3A 3B 12 13 4A 4B † 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. SN54ALS33A ...J PACKAGE SN74ALS33A ...D OR N PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 14 13 12 11 10 9 8 1Y 1A 1B 2Y 2A 2B GND VCC 4Y 4B 4A 3Y 3B 3A SN54ALS33A . . . FK PACKAGE (TOP VIEW) 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 4B NC 4A NC 3Y 1B NC 2Y NC 2A NC – No internal connection 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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