SN74LS38MEL

Inverter Gates Overview

The SN74LS38MEL is a Low Power Schottky (LSP) quad open-collector NAND gate integrated circuit manufactured by onsemi. It operates within a supply voltage range of 4.75V to 5.25V. Key electrical characteristics include a high-level input logic level of 2V, a low-level output logic level of 500mV, and a high-level output logic level of 5.5V. The propagation delay is specified at 32ns when tested at 5V with a 45pF load. The device is housed in a 14-pin SSOP package and is classified as an active component.

Inverter Gates Feature Summary

• Features open-collector outputs suitable for wired-AND configurations and interfacing with different logic families.
• Utilizes Low Power Schottky technology to provide improved speed-power product compared to standard LS series devices.

Inverter Gates Applications

• Digital logic circuits requiring NAND operations
• Open-collector bus systems
• Interface adapters between different voltage logic levels

Inverter Gates Procurement Notes

Verify the specific ordering suffix MEL confirms the SSOP package type and tape-and-reel or bulk packaging details as required by your assembly process. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary. Ensure the part number matches the exact pinout and electrical specifications required for your design before finalizing procurement orders.

Inverter Gates Selection Notes

Select this component when open-collector NAND functionality is required in a compact surface-mount form factor. The Low Power Schottky technology offers a balance of switching speed and power consumption. Verify that the system's pull-up resistor values are compatible with the open-collector output structure and the specified voltage levels.

Inverter Gates Part Context

This component belongs to the 74LS series of logic gates, specifically designed for general-purpose digital applications. The SN74LS38 variant provides four independent two-input NAND gates with open-collector outputs. The MEL suffix denotes the specific SSOP package configuration used by onsemi for this part number.

Inverter Gates Replacement Considerations

Cross-reference documents indicate the SN74LS38N as a related variant, though it typically uses a DIP package. Verify pin compatibility and package dimensions before substituting. Other manufacturers' 74LS38 equivalents should be checked for identical electrical parameters and pinouts.