SN74LS38DB

Inverter Gates Overview

The SN74LS38DB is a quadruple 2-input positive-NAND buffer manufactured by Texas Instruments. It features open-collector outputs and belongs to the 74LS logic series. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports an operating temperature range of 0°C to 70°C. It is housed in a 14-pin SSOP package.

Inverter Gates Feature Summary

• Contains four independent 2-input NAND buffers
• Outputs are configured as open-collector for flexible interfacing

Inverter Gates Applications

• Open-drain driving applications
• TTL-to-CMOS level translation
• Bus line termination

Inverter Gates Procurement Notes

Verify the specific ordering suffix 'DB' corresponds to the SSOP-14 package variant. Confirm RoHS compliance status and lead finish details via the manufacturer's current packaging addendum, as production data may vary over time.

Inverter Gates Selection Notes

Select this component when open-collector NAND functionality is required within standard TTL logic families. Ensure the design accommodates external pull-up resistors necessary for proper operation of the open-collector output stage.

Inverter Gates Part Context

This part is part of the SN74LS38 family, which includes variants such as SN74LS38D (SOIC), SN74LS38N (PDIP), and SN74LS38DR (SOIC tape & reel). All variants share identical internal circuitry but differ in physical package and shipping configuration.

Inverter Gates Replacement Considerations

SN74LS38DR

Inverter Gates FAQ

What is the function of the open-collector outputs?

The open-collector outputs allow the device to drive loads at different voltage levels than the logic supply, requiring an external pull-up resistor to function correctly.

Does the SN74LS38DB support high-voltage switching?

Yes, the open-collector outputs can switch voltages higher than the 5V logic supply, provided the maximum voltage ratings specified in the datasheet are not exceeded.