74AC573SCX

Latches Overview

The Fairchild Semiconductor 74AC573SCX is an octal transparent latch featuring three-state outputs, belonging to the AC logic series. It utilizes CMOS technology and operates within a supply voltage range of 2V to 6V. The device provides eight D-type latches with buffered common Latch Enable (LE) and Output Enable (OE) inputs. Designed for surface-mount applications, it is housed in a 20-pin TSSOP package. The component supports an operating temperature range from -40°C to +85°C and offers high-speed operation comparable to equivalent Bipolar Schottky TTL while maintaining low power dissipation.

Latches Feature Summary

• Octal transparent latch architecture with buffered control inputs
• Three-state outputs suitable for bus interfacing
• CMOS construction ensuring low power consumption
• Surface-mount TSSOP packaging for compact integration

Latches Applications

• Microprocessor input or output port buffering
• Bus interface circuits requiring data latching
• General-purpose memory address/data storage

Latches Procurement Notes

Verify the specific manufacturer source, as Fairchild Semiconductor's logic products are now managed under ON Semiconductor. Confirm that the SCX suffix corresponds to the standard TSSOP-20 surface mount package variant. Ensure compatibility with existing design specifications regarding voltage levels and thermal requirements before procurement.

Latches Selection Notes

Select this component when an octal latch with three-state outputs is required in a surface-mount form factor. It serves as a functional alternative to the 74AC373, distinguished by its pinout configuration which places inputs and outputs on opposite sides of the package. This layout facilitates easier routing in microprocessor interface designs compared to traditional side-by-side pin arrangements.

Latches Part Context

This device is part of the 74AC family of high-speed CMOS logic devices. It is functionally identical to the 74AC373 but features a different physical pinout arrangement. The 74AC series is designed to provide performance similar to Bipolar Schottky TTL while offering the benefits of CMOS technology, including lower power consumption and wider operating voltage ranges.

Latches Replacement Considerations

The 74AC373 is functionally equivalent but differs in pinout orientation. For direct pin-compatible replacement in designs not constrained by the opposite-side I/O layout, verify electrical characteristics match. Other AC series latches may require schematic adaptation due to differing control signal assignments.