XD74LS93 – 4-Bit Binary Ripple Counter – Xinluda

The Xinluda XD74LS93 is a 4-bit binary ripple counter (74LS93 / 7493 type) in a DIP-14 package, providing divide-by-2 and divide-by-8 sections for flexible divide-by-2/8/16 counting.

The XD74LS93 from Xinluda (XINLUDA) is a 4-bit binary ripple counter belonging to the popular 74LS93 / 7493 LS-TTL logic family. Internally it consists of four master-slave flip-flops arranged as a divide-by-two section and a separate divide-by-eight section, each with its own clock input. By externally connecting the Q0 output of the divide-by-two section to the divide-by-eight clock input, the device functions as a single 4-bit binary (divide-by-16) ripple counter, with simultaneous frequency divisions of 2, 4, 8 and 16 available at outputs Q0 through Q3.

State changes are initiated on the high-to-low (falling) transition of the clock inputs. A gated AND asynchronous master reset (MR1, MR2) overrides both clocks and resets all flip-flops to zero, making the part well suited to general-purpose frequency-division and counting tasks. The XD74LS93 is a drop-in functional equivalent to the industry-standard 74LS93 / SN74LS93 and is supplied by Xinluda in a through-hole DIP-14 package.

Key Features

• 4-bit binary ripple counter (74LS93 / 7493 type)
• Independent divide-by-two and divide-by-eight counter sections
• Configurable for divide-by-2, divide-by-8 and divide-by-16 operation
• Gated AND asynchronous master reset (MR1 / MR2) overrides clock inputs
• Counting initiated on the high-to-low clock transition
• Standard low-power Schottky (LS) TTL logic levels
• Through-hole DIP-14 package

Applications

• Frequency division and clock prescaling
• Divide-by-2 / 8 / 16 counter stages
• General-purpose binary counting circuits
• Digital timers and sequencers
• Educational and prototyping logic projects
• Legacy TTL system repair and maintenance

Why Source XD74LS93 from Pacific Component Xchange

The XD74LS93 is a niche, Xinluda-branded logic part with little to no authorized-distributor stock, which makes it difficult to source through mainstream channels. Pacific Component Xchange specializes in hard-to-find and obsolete logic devices and power-management ICs, helping engineers and procurement teams secure components that are otherwise unavailable. We focus on authenticity and traceability, offer global shipping, and support both prototype and production volumes. If you need the XD74LS93 or a verified equivalent, request a quote (RFQ) from Pacific Component Xchange and our sourcing team will respond with current availability and lead time.