Xinluda Information Technology Co., Ltd Electronic Parts
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The XD74LS90 from Xinluda is a TTL-compatible decade, divide-by-twelve and binary counter belonging to the popular 74LS logic family. It integrates four master-slave flip-flops together with additional gating to form an independent divide-by-two counter and a three-stage divide-by-five (binary) counter, giving designers flexible BCD counting and frequency-division capability in a single low-cost device.
Because the two counter sections are brought out separately, the XD74LS90 can be wired as a BCD decade counter, a bi-quinary divider, or a divide-by-five stage simply by choosing which clock input is driven and how the outputs are interconnected. Gated zero-reset (R0) inputs and gated set-to-nine (R9) inputs make it well suited to BCD nine’s-complement applications and clean counter initialization.
The XD74LS90 is a hard-to-find logic IC with little to no authorized-distributor stock, which can stall production runs and legacy-board maintenance. Pacific Component Xchange specializes in sourcing scarce and obsolete logic and power-management components like the XD74LS90, with a focus on authenticity, traceability, and global shipping. Whether you need a single tube for an end-of-life build or volume quantities for ongoing production, our team can locate verified inventory and lock in pricing. Request a quote (RFQ) today and let Pacific Component Xchange handle the hard-to-find sourcing so your project stays on schedule.
The XD74LS90 is a Xinluda 74LS-series TTL counter IC that functions as a decade, divide-by-twelve and binary counter. It uses four master-slave flip-flops to provide a divide-by-two section and a three-stage divide-by-five section, supporting BCD counting and frequency division.
Pacific Component Xchange lists the XD74LS90 in a through-hole DIP-14 package.
The device operates from a 4.75 V to 5.25 V supply over a commercial temperature range of 0 u00b0C to +70 u00b0C, consistent with standard 74LS-family logic.
Yes. The XD74LS90 is Xinluda's implementation of the industry-standard 74LS90 decade/divide-by-twelve/binary counter and follows the same functional definition and pin layout as the generic 74LS90.
The XD74LS90 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 with your quantity for current pricing and lead time.
It is used in BCD decade counting, digital display drivers, frequency division and clock prescaling, industrial counting and timing circuits, and educational digital logic projects.
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