74FCT377ATSOG

Overview

The IDT74FCT377ATSOG is an octal D flip-flop manufactured by Integrated Device Technology using advanced dual metal CMOS technology. It features eight positive-edge-triggered D-type flip-flops with a clock enable input, packaged in a 20-pin SOIC (Small Outline Integrated Circuit). The device operates at a nominal supply voltage of 5 V and supports a maximum operating frequency of 71.4 MHz. Key electrical parameters include a propagation delay of 13 ns at nominal supply, a load capacitance of 50 pF, and a maximum output current of 48 mA. It provides three-state outputs and ensures true TTL input and output compatibility.

Feature Summary

• Octal configuration providing eight independent positive-edge-triggered D-type flip-flops within a single package
• Integrated clock enable functionality to control data capture timing precisely
• Three-state outputs allowing direct connection to buffered buses without external pull-ups
• True TTL input and output compatibility ensuring seamless integration with standard logic families

Applications

• High-speed parallel data storage and buffering in digital systems
• Clock-controlled data latching for bus interface applications
• Register files in microprocessor-based architectures
• Data acquisition systems requiring precise edge-triggered sampling

Procurement Notes

Verify the specific suffix 'ATSOG' against the manufacturer's official datasheet to confirm the exact temperature range, speed grade, and packaging specifications. Ensure that the component meets all required environmental standards and RoHS compliance status as defined in the latest production documentation before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring high-density octal storage with fast switching speeds. The 71.4 MHz performance and 13 ns propagation delay make it suitable for demanding digital interfaces. Consider the 5 V supply requirement and ensure the system design accommodates the specified load capacitance and output drive capabilities for reliable signal integrity.

Part Context

This part belongs to the 74FCT series of Fast CMOS logic devices, which bridge the performance gap between standard TTL and CMOS technologies. The 74FCT377 variant specifically addresses the need for high-speed octal registers. As an IDT product, it utilizes proprietary dual metal CMOS processes to achieve low power consumption while maintaining high-speed operation comparable to older ECL technologies.

Replacement Considerations

Compatible substitutes include the SN74HCT377 from Texas Instruments and the 74FCT377AT from Renesas Electronics. Verify pinout compatibility and electrical parameter alignment, particularly regarding propagation delay and supply voltage requirements, before implementing any cross-manufacturer replacements.