CD54ACT20, CD74ACT20 DUAL 4-INPUT POSITIVE-NAND GA.
Texas Instruments
CD54ACT20 - DUAL 4-INPUT POSITIVE-NAND GATES
CD54ACT20, CD74ACT20 DUAL 4-INPUT POSITIVE-NAND GATES D Inputs Are TTL-Voltage Compatible D Speed of Bipolar F, AS, and S, With Significantly Reduced.