DM74LS365AN

Overview

The DM74LS365AN is a hex 3-state buffer and bus driver manufactured by onsemi. It contains six independent non-inverting gates housed in a 16-lead plastic dual-in-line package (PDIP). The device operates within a supply voltage range of 4.75V to 5.25V and supports an operating temperature range of 0°C to +70°C. Electrical characteristics include a high-level output current of -2.6 mA and a low-level output current of 24 mA. Propagation delay times are specified at 16 ns minimum and 25 ns maximum.

Feature Summary

• Contains six independent non-inverting buffer gates with 3-state outputs for bus line driving without external resistors.

Applications

• Bus-oriented systems requiring high-impedance state isolation

Procurement Notes

Verify the specific manufacturer origin, as this component was originally produced by Fairchild Semiconductor before acquisition by onsemi. Confirm that the PDIP-16 package matches the N16E designation found in official documentation. Ensure the ordering code does not require the 'X' suffix if tape and reel packaging is not intended for the application.

Selection Notes

Select this component when designing circuits requiring multiple non-inverting buffers with tri-state control capabilities. The LS logic family provides standard drive strength suitable for general-purpose digital interfaces. Verify that the required propagation delays and output currents align with the system's timing and load requirements.

Part Context

This part belongs to the 74LS series of logic integrated circuits, specifically designed as bus drivers. It serves as a direct replacement for similar hex buffer devices from other manufacturers within the same logic family standards. The device is widely used in legacy digital designs requiring bus isolation and signal buffering.

Replacement Considerations

SN74LS365AN

FAQ

What is the relationship between enable and disable times?

The disable time is shorter than the enable time to minimize the possibility of two outputs attempting to take a common bus to opposite logic levels simultaneously.

How does the device behave when disabled?

When disabled, both output transistors are turned off, presenting a high-impedance state to the bus line so it acts neither as a significant load nor as a driver.