This is the Texas Instruments SN74LS93 f4-bit binary counter IC from the 74LS family. This is part of a range of low power Schottky devices offering the same speed as standard TTL but at a fifth of the power consumption. * 7493 base number * 4.75 to 5.25V supply voltage * 46ns propagation delay * 0.4W power * 14-DIP * Operating temperature -20°C to +75°C https://elecena.pl/product/27173150/texas-instruments-sn74ls93n-4-bit-binary-counter 2024-11-08 https://elecena.pl/product/27173150/texas-instruments-sn74ls93n-4-bit-binary-counter 2025-03-30 https://elecena.pl/product/27173150/texas-instruments-sn74ls93n-4-bit-binary-counter 2025-05-15 https://elecena.pl/product/27173150/texas-instruments-sn74ls93n-4-bit-binary-counter 2026-03-31