SN74LS38DBR

Inverter Gates Overview

The SN74LS38DBR is a quadruple 2-input positive-NAND buffer manufactured by Texas Instruments, belonging to the 74LS logic family. It features open-collector outputs and is housed in a 14-pin SSOP package. The device operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical parameters include a propagation delay of 30 ns at 5 V with 50 pF load capacitance, a low-level output current capability of 24 mA, and a high-level output current of -400 µA. It supports surface-mount installation and functions reliably across an operating temperature range of 0°C to +70°C.

Inverter Gates Feature Summary

• Provides four independent 2-input NAND buffering functions within a single integrated circuit.
• Features open-collector outputs suitable for wired-AND configurations and interfacing with higher voltage loads.
• Delivers high sink current capacity to drive external components effectively.

Inverter Gates Applications

• Open-collector bus line drivers
• Wired-logic gate implementations
• Interface circuits requiring voltage level translation

Inverter Gates Procurement Notes

Verify the specific suffix 'DBR' corresponds to the SSOP-14 package and tape-and-reel packaging format. Confirm RoHS compliance status as indicated in the official datasheet. Ensure the supplier provides documentation matching the Texas Instruments manufacturing origin. Check for any recent product change notifications regarding pinout or electrical characteristics updates.

Inverter Gates Selection Notes

Select this component when open-collector NAND functionality is required in a compact surface-mount form factor. The LS series offers a balance of speed and power consumption suitable for general-purpose digital logic. Verify that the application can accommodate the open-collector nature, which requires external pull-up resistors for proper high-state operation.

Inverter Gates Part Context

This part belongs to the Texas Instruments 74LS (Low-power Schottky) logic family, known for improved switching speeds over standard TTL while maintaining lower power dissipation. The SN74LS38 variant specifically provides buffered NAND gates with open-collector outputs, distinguishing it from standard push-pull output logic families.

Inverter Gates Replacement Considerations

Compatible substitutes include SN74LS38N (PDIP package), SN74LS38DR (SOIC package), and SN74LS38NSR (TSSOP package). Cross-vendor equivalents such as MC74LS38 or DM74LS38 may be considered if pinouts and electrical specifications are verified to match.