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The XD74HC573 from Xinluda is a high-speed CMOS 8-bit (octal) D-type transparent latch featuring 3-state outputs, supplied in a through-hole DIP-20 package. It belongs to the popular 74HC573 logic family and is intended as a drop-in alternative for designs requiring a transparent octal latch with bus-driving capability.
The device provides eight data inputs and eight latched outputs controlled by a Latch Enable (LE) input and an active-LOW Output Enable (OE) input. When LE is HIGH, the latches are transparent and each output follows its corresponding data input. When LE goes LOW, the data present at the inputs is latched and held. A HIGH on OE places all outputs in the high-impedance (3-state) condition, while a LOW on OE enables normal output operation, allowing the device to connect directly to a common bus.
The XD74HC573 is a Xinluda-branded logic IC with limited authorized-distributor coverage, which can make it difficult to source through conventional channels. Pacific Component Xchange is an independent distributor specializing in hard-to-find and obsolete power-management ICs, optocouplers, and logic devices. We help engineers and purchasing teams secure quantities of niche parts like the XD74HC573, with authenticity verification and global shipping. Whether you need a small quantity for a prototype build or production volumes for a long-running design, request a quote (RFQ) and our sourcing team will confirm availability, lead time, and pricing.
The XD74HC573 is a Xinluda-branded 8-bit (octal) D-type transparent latch with 3-state outputs. It is part of the 74HC573 high-speed CMOS logic family and is supplied in a DIP-20 package.
Xinluda supplies the XD74HC573 in a through-hole DIP-20 (20-pin dual in-line) package.
The XD74HC573 operates over a wide 2.0 V to 6 V supply voltage range, consistent with the 74HC573 logic family.
When Latch Enable (LE) is HIGH the latches are transparent and outputs follow the data inputs; when LE is LOW the data is latched and held. The Output Enable (OE) is active-LOW: a LOW on OE enables the outputs, while a HIGH on OE puts all outputs into the high-impedance 3-state condition for bus interfacing.
Yes. The XD74HC573 follows the standard 74HC573 octal transparent latch pinout and function, making it a functional alternative for other vendors' 74HC573 devices in equivalent packages. Always confirm package and electrical ratings against your design requirements.
Pacific Component Xchange is an independent distributor that sources hard-to-find parts like the XD74HC573. Submit a Request for Quote (RFQ) and our team will confirm availability, lead time, and pricing.
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