M74HC368B1R

Overview

The M74HC368B1R is a high-speed CMOS hex bus buffer with three-state outputs, manufactured by STMicroelectronics using silicon gate C2MOS technology. It provides inverting logic functions within the 74HC series. The device operates over a wide voltage range of 2V to 6V and features low power dissipation with a maximum supply current of 4µA at 25°C. It offers symmetrical output impedance with minimum drive capabilities of 6mA for both high and low states. Propagation delay is typically 9ns at 6V supply. The component is pin and function compatible with the standard 74 series 368 devices.

Feature Summary

• Hex bus buffer configuration with three-state outputs
• Inverting logic functionality
• High noise immunity with VNIH and VNIL minimums at 28% of VCC
• Balanced propagation delays ensuring symmetrical signal timing

Applications

• Data bus buffering applications requiring inversion
• Clock distribution circuits
• Memory address decoding systems
• I/O port expansion interfaces

Procurement Notes

Verify component authenticity through authorized distributors as this part may be discontinued or obsolete. Confirm package integrity and RoHS compliance status prior to integration. Cross-reference datasheet revisions to ensure parameter consistency with existing design specifications. Validate thermal performance under actual operating conditions.

Selection Notes

Select this component when inverting hex bus buffering with three-state control is required. Ensure supply voltage remains within the 2V to 6V operational range. Consider propagation delay characteristics for high-speed signal integrity requirements. Verify compatibility with downstream logic levels and load capacitance constraints.

Part Context

This component belongs to the M74HC368 family of high-speed CMOS logic devices. It serves as the inverting counterpart to the non-inverting M74HC367. Both devices share similar electrical characteristics and packaging options within the 74HC series, providing standardized interface solutions for digital systems requiring buffered and inverted signals.

Replacement Considerations

Direct substitutes include SN74HC368DR from Texas Instruments and 74HC368D,653 from Nexperia. These alternatives maintain functional compatibility while potentially differing in packaging or manufacturing process. Verify pinout alignment and electrical parameters before substitution.