The 74LS family of ICs is a lower-power version of the 74S family, with slightly higher speed but lower power dissipation than the original 74 family; it became the most popular variant once it was widely available. Many 74LS ICs can be found in microcomputers and digital consumer electronics manufactured in the 1980s and early 1990s.

74LS Series. 74LS Series of High Speed, TTL Logic Gate Chips including AND, OR, NAND Gates as well as counters, shift registers and multiplexers. Features. Standard 74LS Family in DIP Package; Low Power and High Speed Schottky Family; Large Quantity Discounts Available; Cross-Reference Guide

Description: DUAL D-TYPE POSITIVE EDGE-TRIGGERED FLIP-FLOP. Manufacturer: Motorola, Inc.

These devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset or clear inputs sets or resets the outputs regardless of the levels of the other inputs.

74LS74 Datasheet, 74LS74 Dual D-Type Flip-Flop Datasheet. 74LS74 Pinout and Datasheet.

Description: Dual Positive-Edge-Triggered D Flip-Flops with Preset, Clear and Complementary Outputs. Manufacturer: Fairchild Semiconductor.

These hex buffers and drivers feature high-voltage open-collector outputs to interface with high-level circuits or for driving high-current loads. They are also characterized for use as buffers for driving TTL inputs. The SN74LS07 devices have a rated output voltage of 30 V. The maximum sink current is 40 mA.

74LS TTL Cross-Reference Guide. * The information appearing here is for a guide only and actual technical specifications may vary slightly between the different manufacturers, please consult the full datasheet.

Learn about 74 Series Logic ICs including the 74HC, 74HCT, 74LS families, open collector output, logic gates, counters, decoders and display drivers.

The 74HC and 74LS series each offer distinctive advantages suited to specific applications. The 74HC series excels in scenarios requiring energy efficiency, whereas the 74LS series thrives in speed-intensive environments.