Xinluda Electronic Parts
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The XD74LS27 from Xinluda is a member of the popular 74LS (Low-power Schottky TTL) logic family, implementing a Triple 3-Input NOR Gate function. The device integrates three independent NOR gates, each accepting three inputs, on a single 14-pin chip. Each gate drives its output LOW whenever any of its three inputs is HIGH, and HIGH only when all three inputs are LOW — the classic NOR logic function. It is functionally equivalent to industry-standard 74LS27 / DM74LS27 / SN74LS27 devices and is a practical drop-in for legacy TTL designs.
The XD74LS27 is a hard-to-find part with little to no authorized-distributor stock. Pacific Component Xchange specializes in sourcing scarce, end-of-life, and allocation-constrained logic ICs and power-management components. Whether you need a handful for a repair or volume for a production run, our global supplier network and rigorous incoming inspection help you secure authentic parts when mainstream channels come up empty.
We support obsolete and legacy TTL sourcing, authenticity verification, and worldwide shipping. A surface-mount sibling (XL74LS27, SOP-14) is also available on request. Request a quote (RFQ) for the XD74LS27 today and our team will confirm availability, lead time, and pricing for your required quantity.
The XD74LS27 is a Xinluda-branded Triple 3-Input NOR Gate logic IC in the 74LS (Low-power Schottky TTL) family. It contains three independent NOR gates, each with three inputs, in a 14-pin DIP package.
Yes. The XD74LS27 is functionally equivalent to industry-standard 74LS27 devices such as the DM74LS27 and SN74LS27, with the same triple 3-input NOR function and standard 14-pin pinout, making it a practical drop-in replacement.
The XD74LS27 is supplied in a 14-pin through-hole DIP-14 package consistent with the standard 74LS27 footprint. Xinluda also offers a surface-mount SOP-14 version under the part number XL74LS27.
As a 74LS-family LSTTL device, the XD74LS27 operates from a 4.75 V to 5.25 V (nominal 5 V) supply over a commercial temperature range of 0 C to +70 C, with bipolar TTL-compatible inputs and totem-pole outputs.
The XD74LS27 is a hard-to-find part with limited authorized-distributor availability and is offered on a Request-for-Quote (RFQ) basis. Pacific Component Xchange can source it through our global supplier network; contact us to confirm availability, lead time, and pricing.
Yes. We source both small repair quantities and larger production volumes of scarce and legacy logic ICs. Submit an RFQ with your required quantity and target date and our team will respond with options.
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