MC74ACT373N

Latches Overview

The MC74ACT373N is an octal transparent latch with 3-state outputs manufactured by onsemi. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible inputs. The device contains eight D-type latches in a single package, providing bus-organized system applications. Key electrical characteristics include a propagation delay of 10 ns at 5 V, a maximum quiescent supply current of 80 µA, and output drive capabilities of 24 mA source/sink. It supports operating temperatures from -40°C to +85°C.

Latches Feature Summary

• Contains eight D-type latches with 3-state standard outputs for bus interfacing.
• Features TTL-compatible inputs for the 'ACT' series logic family.
• Outputs are controlled by Latch Enable (LE) and Output Enable (OE) inputs.
• Provides high impedance state when OE is HIGH.

Latches Applications

• Bus organized system applications
• Data storage and buffering
• Interface between microprocessors and peripheral devices

Latches Procurement Notes

Verify the specific suffix against the datasheet ordering information to confirm package type and shipping quantity. Ensure the component meets RoHS compliance requirements if applicable to your design. Check for moisture sensitivity level classifications relevant to surface mount assembly processes. Confirm availability of technical documentation such as mechanical case outlines and soldering footprints.

Latches Selection Notes

Select this component for designs requiring octal data latching with tri-state control. The ACT series offers faster switching speeds compared to AC or HC families while maintaining TTL input compatibility. Consider the SOIC-20 or TSSOP-20 package options based on board space constraints. Evaluate power dissipation capacitance and leakage currents for low-power applications.

Latches Part Context

This part belongs to the MC74AC373/MC74ACT373 family of octal transparent latches. The 'ACT' designation indicates Advanced CMOS technology with TTL-compatible inputs. It serves as a digital storage element in logic circuits, distinct from flip-flops by its transparency during the enable phase. The family includes variants with different packaging and trailing zeros for lead-free status.

Latches Replacement Considerations

Direct substitutes include other manufacturers' 74ACT373 equivalents. Verify pinout compatibility and electrical specifications such as propagation delay and output current before substitution. Ensure the replacement part supports the same supply voltage range and operating temperature conditions.