Xinluda Information Technology Co., Ltd. Electronic Parts
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The Xinluda XD4553 is a 3-digit BCD (binary-coded decimal) counter built on the proven 4000-series CMOS logic architecture. It is a functional equivalent of the industry-standard CD4553 / MC14553B and is widely used as the counting core in multi-digit digital displays, frequency counters, and event-counting instrumentation. The device integrates three negative-edge-triggered BCD counters that are cascaded synchronously, with on-chip latches and a multiplexed, time-shared BCD output, making it well suited to driving multiplexed seven-segment displays with a minimum of external components. An on-chip oscillator provides the low-frequency scanning clock for the digit-select multiplexer.
The XD4553 is a niche, hard-to-find logic IC with little to no authorized-distributor availability, which makes consistent sourcing a challenge for repair shops, OEMs, and legacy-equipment maintainers. Pacific Component Xchange is an independent distributor specializing in scarce and obsolete power-management ICs, optocouplers, and logic devices. We help you secure the XD4553 and its CD4553 / MC14553B equivalents with attention to authenticity, traceability, and lead-time. Every order is supported by our quality and counterfeit-avoidance processes, and we ship worldwide.
Need the XD4553? Submit a Request for Quote and our sourcing team will respond with current availability, pricing, and lead-time. Whether you need a handful of units for a repair or production volumes for a build, Pacific Component Xchange can help you find this hard-to-source component.
The XD4553 is a 3-digit BCD (binary-coded decimal) counter from Xinluda, built on 4000-series CMOS logic. It is a functional equivalent of the industry-standard CD4553 / MC14553B and integrates three negative-edge-triggered counters with on-chip latches and a multiplexed BCD output.
The XD4553 is designed as a functional equivalent of the CD4553/MC14553B 3-digit BCD counter in the same DIP-16 footprint. As with any cross, verify pinout and electrical parameters against your application's datasheet before substitution.
The XD4553 is supplied in a 16-pin DIP-16 (through-hole) package and is RoHS compliant with a moisture sensitivity level (MSL) of 3.
Per the distributor parametric data, the XD4553 dissipates up to 500 mW per package, has a clock-to-BCD-out propagation delay of about 900 ns at 5 V, a maximum input clock frequency of roughly 7 MHz typical at 15 V, and operates over -40 u00b0C to +85 u00b0C. As a CD4553-family CMOS part it is a falling-edge, synchronous counter.
The XD4553 is a specialty logic IC with limited authorized-distributor stock. Pacific Component Xchange is an independent distributor that sources scarce and obsolete components like the XD4553, with a focus on authenticity and global shipping.
The XD4553 is a Request-for-Quote item. Submit an RFQ to Pacific Component Xchange and our team will reply with current availability, pricing, and lead-time.
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