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SN54ALS38B Datasheet(PDF) 1 Page - Texas Instruments |
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SN54ALS38B Datasheet(HTML) 1 Page - Texas Instruments |
1 / 4 page SN54ALS38B, SN74ALS38B QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS WITH OPEN-COLLECTOR OUTPUTS SDAS196B – 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-NAND buffers with open-collector outputs. They perform the Boolean functions Y = A • B or Y = A + B in positive logic. The open-collector outputs require pullup resistors to perform correctly. These outputs may be connected to other open-collector outputs to implement active-low wired-OR or active-high wired-AND functions. Open-collector devices often are used to generate higher VOH levels. The SN54ALS38B is characterized for operation over the full military temperature range of – 55 °C to 125 °C. The SN74ALS38B is characterized for operation from 0 °C to 70°C. FUNCTION TABLE (each gate) INPUTS OUTPUT A B Y H H L L XH X L H logic symbol† logic diagram (positive logic) 1 1A 2 1B 4 2A 5 2B 9 3A 10 3B 12 4A 13 4B 1Y 3 2Y 6 3Y 8 4Y 11 & 1 1A 2 1B 4 2A 5 2B 9 3A 10 3B 12 4A 13 4B 1Y 3 2Y 6 3Y 8 4Y 11 † 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. SN54ALS38B ...J PACKAGE SN74ALS38B ...D OR N PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 14 13 12 11 10 9 8 1A 1B 1Y 2A 2B 2Y GND VCC 4B 4A 4Y 3B 3A 3Y SN54ALS38B . . . FK PACKAGE (TOP VIEW) 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 4A NC 4Y NC 3B 1Y NC 2A NC 2B 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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