74ACTQ573QSC

Latches Overview

The Fairchild Semiconductor 74ACTQ573QSC is an octal transparent latch featuring three-state outputs, designed for high-speed digital applications. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum operating frequency of 80 MHz. The device utilizes CMOS technology and is housed in a 20-pin SSOP package with a shrink pitch. It functions as a positive-edge-triggered D flip-flop with eight independent circuits, providing reliable data storage and transfer capabilities under standard industrial temperature conditions.

Latches Feature Summary

• Octal configuration with three-state outputs for efficient bus interfacing
• High-speed operation supporting frequencies up to 80 MHz
• Positive-edge triggering mechanism for precise data capture
• CMOS construction ensuring low power consumption

Latches Applications

• Parallel-to-serial data conversion systems
• Bus-oriented memory register implementations
• High-speed data buffering and latching circuits

Latches Procurement Notes

Verify the specific suffix QSC against official Fairchild documentation to confirm package dimensions and pinout compatibility. Ensure that the procurement channel provides genuine components with traceable manufacturing history. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary based on production lifecycle stages.

Latches Selection Notes

Select this component when an octal latch with three-state outputs is required for high-speed data handling. It is suitable for designs needing positive-edge triggering and CMOS compatibility. Consider the SSOP package constraints and verify that the 4.5 V to 5.5 V supply range aligns with the system power architecture. Evaluate thermal performance within the specified operating temperature range.

Latches Part Context

This part belongs to the 74ACTQ series, which represents qualified automotive-grade or high-reliability variants of the standard 74ACT logic family. The 'Q' designation typically indicates enhanced quality control or specific reliability testing beyond standard commercial grades. It serves as a robust solution for demanding digital logic applications requiring stable performance over time.

Latches Replacement Considerations

Direct substitutes include the 74ACT573 from other manufacturers such as Texas Instruments (e.g., SN74ACT573) or onsemi (e.g., 74ACT573SJ_Q). Verify pin compatibility and electrical specifications before substitution. Note that the 74ACTQ374QSCQR is a similar octal D flip-flop but lacks the transparent latch characteristic.