HEF40373BT,652

Latches Overview

The HEF40373BT,652 is an octal transparent latch with 3-state outputs manufactured by Nexperia. It operates within a supply voltage range of 3 V to 15 V and supports ambient temperatures from -40 °C to +85 °C. The device features Schmitt-trigger action on the latch enable input for noise rejection. Propagation delays vary by voltage; at 5 V, tPHL is typically 150 ns and tPLH is 125 ns. At 15 V, these reduce to 40 ns and 40 ns respectively. Output currents reach up to 30 mA low-level and -20 mA high-level at 15 V.

Latches Feature Summary

• Octal bus interface with 3-state buffered outputs
• Schmitt-trigger action on the E input improves noise rejection
• High current output capability suitable for driving highly capacitive loads

Latches Applications

• Octal bus interface systems
• Data storage in digital circuits
• Buffering applications requiring high capacitive load drive

Latches Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature range. Confirm RoHS compliance status through official documentation before integration. Check for any recent product change notices or end-of-life announcements directly from the manufacturer to ensure long-term availability.

Latches Selection Notes

Select this component when an octal latch with tri-state control is required. Ensure the application voltage falls within the 3 V to 15 V range. Consider the propagation delay specifications relative to system clock speeds. Verify that the SO20 package dimensions fit the PCB layout constraints.

Latches Part Context

This part belongs to the HEF40373B series of octal transparent latches. It is designed for general-purpose digital logic applications requiring data storage and bus interfacing capabilities. The device utilizes CMOS technology for low power consumption and high noise immunity.

Latches Replacement Considerations

Direct substitutes include other octal latches with 3-state outputs from compatible logic families. Verify pin compatibility and electrical characteristics such as propagation delay and output current ratings before substitution.