SN74ALS03B - Texas Instruments

SN74ALS03B Quadruple 2-Input Positive-NAND Buffer

These devices contain four independent 2-input positive-NAND buffers. 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-co.

Features

rature range of − 55°C to 125°C. The SN74ALS03B is characterized for operation from 0°C to 70°C. FUNCTION TABLE (each gate) INPUTS A B OUTPUT Y 2Y NC 3 2 1 20 19 1Y 4 18 4A NC 5 17 NC 2A 6 16 4Y NC 7 15 NC 2B 8 14 3B 9 10 11 12 13 3Y 3A GND H H L L X H NC − No internal connection X L H logic symbol† 1 1A & 2 1B 4 2A 5 2B 9 3A 10 3B 12 4A 13 4B 3 1Y 6 2Y 8 3Y 11 4Y logic diagram (positive logic) 1 1A 2 1B 4 2A 5 2B 9 3A 10 3B 12 4A 13 4B 3 1Y 6 2Y 8 3Y 11 4Y † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.