Based on standard 14-pin DIP datasheets from sources like Texas Instruments and Romux : : Positive power supply (5V). GND (Pin 7) : Ground. Inputs : Labeled as A, B, C, and D for each gate. Outputs : Labeled as Y (inverted output).
, and the low-power Schottky SN74LS50. It can often be replaced by equivalents like the Go to product viewer dialog for this item. Pinout Configuration TTL схема 7450.rar
Dual 2-Wide 2-Input AND-OR-Invert Gates (One Gate Expandable) datasheet. Based on standard 14-pin DIP datasheets from sources