74ACTQ843SPC

Latches Overview

The Fairchild Semiconductor 74ACTQ843SPC is a high-speed, low-power octal bus driver belonging to the ACTQ (FACT Quiet Series). It features nine-bit functionality with true outputs and three-state capability. The device operates within a supply voltage range of 4.5 V to 5.5 V and utilizes a 24-pin plastic dual in-line package (PDIP-24). It incorporates FACT Quiet Series technology for improved dynamic threshold performance and reduced simultaneous switching noise.

Latches Feature Summary

• Incorporates FACT Quiet Series technology featuring GTO output control and undershoot correction for superior signal integrity.
• Provides three-state outputs suitable for bus-oriented applications and memory address register buffering.
• Features buffered positive edge-triggered clock and common output enable inputs for all flip-flops.

Latches Applications

• Bus-oriented data transmission systems
• Memory address register buffering
• High-speed digital logic interfaces

Latches Procurement Notes

Verify the specific suffix 'SPC' against official Fairchild or onsemi documentation to confirm the exact package type and environmental compliance status. Ensure the component matches the required operating temperature range and voltage specifications for your design. Cross-reference the manufacturer part number with current datasheets to confirm availability and pinout compatibility before integration.

Latches Selection Notes

Select this component when designing systems requiring octal bus driving with enhanced noise immunity. The ACTQ series offers faster propagation delays compared to standard AC/ACT counterparts. Consider the PDIP-24 package constraints for through-hole mounting requirements. Evaluate the 24 mA drive capability against load requirements to ensure proper signal levels are maintained across the bus.

Latches Part Context

This component is part of the 74ACT family, specifically utilizing the FACT Quiet Series technology developed by Fairchild Semiconductor. It serves as an octal bus driver variant within the broader 74xx logic ecosystem. The ACTQ designation indicates the inclusion of specialized output control features designed to minimize electromagnetic interference and improve switching performance in high-density digital circuits.

Latches Replacement Considerations

Compatible substitutes include the 74ACT843 from various manufacturers. Verify pinout compatibility and electrical characteristics such as propagation delay and drive strength. Check for equivalent packaging options if surface mount variants are preferred over the PDIP-24 form factor.