74LS367APC

Overview

The National Semiconductor 74LS367APC is a Low Power Schottky (LSP) hex buffer featuring three-state outputs. It provides high-speed data buffering with separate enable controls for two distinct sections: one containing two inputs and the other containing four inputs. The device supports non-inverting logic paths, allowing signals to pass through without phase reversal. When enabled, the outputs drive standard TTL loads or multiple LSP loads. Disabling the output forces the pins into a high-impedance state, preventing bus contention when multiple devices share a common data line.

Feature Summary

• Hex buffer architecture with independent control over two functional groups
• Three-state output capability for safe parallel bus connection
• Low Power Schottky technology for reduced power consumption
• Non-inverting signal transmission path

Applications

• Bus-oriented memory and register driving
• Clock drivers and bus transceivers
• I/O port expansion in microprocessor systems
• Parallel data buffering between logic stages

Procurement Notes

Verify the specific suffix 'APC' against the manufacturer's current datasheet to confirm package type and lead-free status. Ensure the component matches the original National Semiconductor specifications if used in legacy designs. Cross-reference with ON Semiconductor documentation as they acquired the product line. Confirm pinout compatibility before integration into existing PCB layouts.

Selection Notes

Select this component when a hex buffer with tri-state isolation is required for bus applications. The split section design allows flexible grouping of data lines. Verify voltage levels match the system logic family. Consider thermal dissipation requirements based on the load count. Ensure enable signals are properly sequenced to avoid bus conflicts during switching events.

Part Context

This part belongs to the 74LS series of digital logic integrated circuits. It serves as a fundamental building block for data routing in digital systems. The device is widely recognized for its reliability in industrial and commercial applications. Its design facilitates efficient data management in complex electronic architectures requiring signal isolation and direction control.

Replacement Considerations

Compatible substitutes include the SN74LS367 from Texas Instruments and the MC74LS367 from ON Semiconductor. These parts maintain identical pinouts and logical functions. Verify that replacement units meet the same electrical characteristics and package dimensions. Check for any minor differences in propagation delay or power consumption.