XD74HC573 – Octal D-Type Transparent Latch (3-State) – Xinluda

The Xinluda XD74HC573 is an 8-bit (octal) D-type transparent latch with 3-state outputs in a DIP-20 package, operating from a 2.0 V to 6 V supply. Available for RFQ from Pacific Component Xchange.

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.

Key Features

• 8-bit (octal) D-type transparent latch architecture
• 3-state outputs for direct bus interfacing
• Latch Enable (LE) and active-LOW Output Enable (OE) control inputs
• Wide operating supply voltage range: 2.0 V to 6 V
• High-speed CMOS 74HC573 logic family
• Through-hole DIP-20 package

Applications

• Buffer registers and working registers
• Microprocessor and microcontroller address/data latching
• Bidirectional bus drivers and I/O ports
• Memory address demultiplexing
• General-purpose digital logic and glue logic

Why Source XD74HC573 from Pacific Component Xchange

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.