XD74LS73 – Dual J-K Flip-Flop – Xinluda

The Xinluda XD74LS73 is a dual negative-edge-triggered J-K flip-flop with direct clear, part of the 74LS low-power Schottky TTL logic family, supplied in a 14-pin DIP package. Available on an RFQ basis from Pacific Component Xchange.

The XD74LS73 from Xinluda is a dual J-K flip-flop integrated circuit belonging to the popular 74LS low-power Schottky TTL logic family. It contains two independent negative-edge-triggered J-K flip-flops, each with its own J, K, clock, and direct (asynchronous) clear inputs, along with complementary Q and Q-bar outputs. The XD-prefix designates the through-hole DIP package version in Xinluda’s part-numbering scheme.

As a functional equivalent of the industry-standard 74LS73 / SN74LS73A, the XD74LS73 is a drop-in replacement for legacy designs, education and prototyping boards, and general-purpose sequential-logic circuits that require frequency division, counters, or data storage. Pacific Component Xchange stocks and sources this part for buyers who can no longer find it through authorized channels.

Key Features

• Two independent J-K flip-flops in a single package
• Negative-edge-triggered clocking
• Individual direct (asynchronous) clear input per flip-flop
• Complementary Q and Q-bar outputs
• 74LS (low-power Schottky) TTL technology for fast switching at reduced power
• 5 V TTL supply operation
• 14-pin DIP through-hole package

Applications

• Frequency division and clock dividers
• Binary and ripple counters
• Sequential logic and state machines
• Data latching and shift-register building blocks
• Education, lab, and prototyping boards
• Legacy equipment repair and maintenance

Why Source XD74LS73 from Pacific Component Xchange

The XD74LS73 is a hard-to-find part with little to no authorized-distributor availability. Pacific Component Xchange is an independent distributor specializing in obsolete, end-of-life, and difficult-to-source logic and power-management components. We help engineers and procurement teams secure parts like the Xinluda XD74LS73 when mainstream channels come up empty.

Every order is backed by our commitment to authenticity and quality, with global shipping to keep your production lines and service operations running. Request a quote (RFQ) for the XD74LS73 today and our sourcing team will respond with current availability, lead time, and pricing.