MC74AC373DWR2G

Latches Overview

The MC74AC373DWR2G is an octal transparent latch with 3-state outputs manufactured by onsemi. It operates within a supply voltage range of 2.0 V to 6.0 V and features eight D-type latches in a single package. The device provides non-inverting outputs capable of sourcing or sinking 24 mA. Propagation delays are specified at 13.5 ns maximum at 3.3 V and 9.5 ns maximum at 5.0 V. Quiescent supply current is typically 8 µA at 5.5 V. It is housed in a SOIC-20W package (Case 751D) and supports surface mount installation.

Latches Feature Summary

• Contains eight D-type latches with 3-state standard outputs for bus interfacing
• Outputs source and sink up to 24 mA for robust drive capability
• Transparent operation when Latch Enable is HIGH, storing data on LOW transition
• High impedance state available via Output Enable control

Latches Applications

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

Latches Procurement Notes

Verify the specific ordering suffix 'R2G' corresponds to the tape and reel packaging configuration containing 1000 units per reel. Confirm the SOIC-20W mechanical dimensions match the design footprint requirements. Ensure compatibility with the intended operating temperature range of -40°C to +85°C for the application environment.

Latches Selection Notes

Select this component for designs requiring octal latching with high-current output drive capabilities across a wide voltage range. Consider the propagation delay specifications relative to system clock speeds. Evaluate the SOIC-20W package constraints against available board space and thermal management needs compared to alternative logic families.

Latches Part Context

This part belongs to the MC74AC373/74ACT373 family of octal transparent latches. It shares functional similarities with other members like the MC74HC373 but offers faster switching speeds and higher drive currents. The device is distinct from flip-flops such as the MC74AC374, which utilize edge-triggered rather than level-sensitive latching mechanisms.

Latches Replacement Considerations

MC74AC373DWG is the rail-pack equivalent. MC74ACT373DWR2G is the TTL-compatible input variant.