Xinluda (Xinluda Information Technology Co., Ltd) Electronic Parts
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The XD74LS181 from Xinluda is a 4-bit Arithmetic Logic Unit (ALU) and function generator, a Low-Power Schottky (74LS) TTL implementation of the classic 74181 architecture. It performs a comprehensive set of arithmetic and logic operations on two 4-bit operands, selected by four function-select lines, making it a foundational building block for processors, controllers, and digital computation circuits. The device supports full internal look-ahead carry generation for high-speed operation on longer words when multiple units are cascaded.
The XD74LS181 is a niche 74LS-series logic IC with limited authorized-distributor availability, which makes consistent supply a challenge for repair shops, legacy-equipment manufacturers, and educational programs. Pacific Component Xchange specializes in hard-to-find and obsolete logic and power-management components, helping engineers and buyers secure parts that mainline channels no longer stock in volume.
Every order is backed by our commitment to authenticity and quality, with sourcing diligence and inspection to protect your build against counterfeit or substandard parts. We support global shipping and flexible quantities for both prototype and production needs.
Request a quote (RFQ) for the XD74LS181 today and our sourcing team will respond with current availability, lead time, and pricing. Contact Pacific Component Xchange to lock in supply of this and other hard-to-find logic ICs.
The XD74LS181 is a Xinluda 4-bit Arithmetic Logic Unit (ALU) and function generator in the 74LS (Low-Power Schottky TTL) family. It performs 16 logic operations and 16 arithmetic operations on two 4-bit words, selected by four function-select lines.
Yes. The XD74LS181 is Xinluda's implementation of the industry-standard 74181/74LS181 ALU architecture and is functionally equivalent to other 74LS181 devices such as the SN74LS181 and DM74LS181, with the same pinout and operations.
The XD74LS181 is supplied in a 24-pin plastic dual-in-line (DIP-24) through-hole package.
It operates from a 5 V nominal supply, with a recommended range of 4.75 V to 5.25 V, consistent with standard 74LS-series TTL logic.
Yes. The device provides full internal look-ahead carry generation, allowing multiple XD74LS181 units to be cascaded for high-speed arithmetic on words wider than 4 bits.
The XD74LS181 is a hard-to-find logic IC with limited mainstream stock. Pacific Component Xchange sources it on a Request-For-Quote (RFQ) basis. Submit an RFQ and our team will return current availability, lead time, and pricing.
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