Xinluda Information Technology Co., Ltd Electronic Parts
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The XD74LS161 from Xinluda is a synchronous, presettable 4-bit binary counter belonging to the popular 74LS161 low-power Schottky TTL logic family. It provides synchronous counting with internal carry look-ahead, making it well suited to high-speed counting and frequency-division applications where coincident output transitions are required. As a functional equivalent to the industry-standard 74LS161, it serves as a cost-effective, drop-in option for legacy and new digital designs.
In the XD74LS161, all flip-flops are clocked simultaneously so the outputs change in unison under control of the count-enable inputs and internal gating. The device features an asynchronous (master reset) clear: a low level on the clear input forces all four flip-flop outputs low regardless of the clock, load, or enable inputs. Both count-enable inputs (P and T) must be high to count, and the T input is fed forward to enable the ripple-carry output for easy cascading of multiple stages.
The Xinluda XD74LS161 has limited authorized-distributor availability, which can stall production runs and field repairs. Pacific Component Xchange specializes in sourcing hard-to-find and obsolete logic devices and counter ICs like the XD74LS161. We focus on authenticity, trusted and guaranteed sourcing, and global shipping so engineers and buyers can keep their builds moving. Whether you need a single replacement or volume quantities for a production schedule, request a quote (RFQ) from Pacific Component Xchange and our team will respond with current availability and pricing.
The XD74LS161 is Xinluda's synchronous 4-bit presettable binary counter, functionally equivalent to the standard 74LS161 low-power Schottky TTL logic IC. It is supplied in a DIP-16 package.
Yes. The XD74LS161 follows the standard 74LS161 function and pinout, so it serves as a functional equivalent / drop-in option for designs that call for a 74LS161 synchronous 4-bit binary counter.
The Xinluda XD74LS161 is offered in a 16-pin DIP (DIP-16) through-hole package.
The XD74LS161 (74LS161 type) uses an asynchronous clear (master reset). A low level on the clear input sets all four flip-flop outputs low regardless of the clock, load, or enable inputs.
The recommended supply voltage (Vcc) is 4.75 V to 5.25 V and the operating free-air temperature range is 0u00b0C to 70u00b0C.
Pacific Component Xchange sources hard-to-find and limited-availability parts like the Xinluda XD74LS161. Submit a Request for Quote (RFQ) and our team will provide current availability, lead time, and pricing.
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