Xinluda Electronic Parts
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The XD74LS283 from Xinluda is a high-speed 4-bit binary full adder belonging to the well-established 74LS (Low-power Schottky TTL) logic family. It performs the addition of two 4-bit binary words, providing a sum output for each bit and a resultant carry (C4) taken from the fourth bit. With full internal carry look-ahead across all four bits, the device generates the carry term quickly, offering look-ahead performance at the economy and reduced package count of a ripple-carry implementation. The adder logic, including the carry, is implemented in true form, so end-around carry can be accomplished without the need for additional logic or level inversion.
The XD74LS283 is a pin-compatible equivalent to the industry-standard 74LS283 / SN74LS283, making it a practical drop-in option for legacy designs, education, repair, and production runs that still rely on classic TTL arithmetic logic.
The XD74LS283 is a hard-to-find part with limited authorized-distributor stock. Pacific Component Xchange specializes in sourcing scarce, obsolete, and hard-to-find logic and power-management ICs like the XD74LS283. As an independent distributor, we leverage a global supplier network to locate genuine inventory, with a focus on authenticity and traceability. We support obsolete and end-of-life sourcing, lifetime buys, and shortage mitigation, and we ship worldwide. Request a quote (RFQ) for the XD74LS283 today and our team will respond with availability, lead time, and pricing.
The XD74LS283 is a 4-bit binary full adder logic IC manufactured by Xinluda. It belongs to the 74LS TTL logic family and adds two 4-bit binary words, producing a sum for each bit and a carry output from the fourth bit.
Yes. The XD74LS283 is a Xinluda-branded equivalent of the industry-standard 74LS283 / SN74LS283 and is pin-for-pin compatible, making it suitable as a drop-in replacement in existing designs.
The XD74LS283 is supplied in a 16-pin DIP (DIP-16) through-hole package.
The XD74LS283 is rated for commercial-grade operation over 0u00b0C to 70u00b0C and operates from a recommended supply voltage (Vcc) of 4.75 V to 5.25 V, with 5 V nominal.
The XD74LS283 is a hard-to-find part with limited authorized-distributor availability. Pacific Component Xchange can source it on a Request-For-Quote (RFQ) basis. Contact us for current availability, lead time, and pricing.
Carry look-ahead is a technique that generates the carry signal across all four bits internally rather than rippling it bit by bit, which speeds up multi-bit addition. The XD74LS283 features full internal carry look-ahead across all four bits.
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