74HCT541D,652

Overview

The Nexperia 74HCT541D,652 is an octal non-inverting buffer and line driver featuring three-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V. The device includes two active LOW output enable inputs (OE1 and OE2) that force outputs into a high-impedance state when HIGH. Inputs incorporate clamp diodes for interfacing with voltages exceeding VCC. It utilizes the SO20 plastic small outline package (SOT163-1).

Feature Summary

• Octal non-inverting buffer/line driver architecture with three-state outputs.
• Dual active LOW output enables (OE1 and OE2) for high-impedance control.
• Input clamp diodes allow interface to voltages exceeding VCC using current limiting resistors.

Applications

• High-noise immunity signal buffering in industrial environments.
• Line driving applications requiring TTL-compatible input levels.
• Bus-oriented memory and logic systems utilizing three-state isolation.

Procurement Notes

Verify the specific suffix '652' against the manufacturer's latest ordering information to confirm package type and compliance status. Confirm availability as distribution channels may list obsolete or discontinued stock. Ensure design-in specifications match the HCT logic family requirements rather than generic HC series parameters.

Selection Notes

Select this component when TTL-level inputs are required for CMOS logic systems. The dual enable pins provide flexible bus management compared to single-enable variants. Verify that the SO20 package dimensions fit the target PCB layout constraints. Ensure operating temperatures align with the specified -40 °C to +125 °C range.

Part Context

This part belongs to the Nexperia 74HCT541 product family, which shares functional characteristics with the 74HC541 but differs in input voltage thresholds. The 'D' designation indicates the SO20 package variant, while '652' specifies the standard reel packaging configuration defined by the manufacturer.

Replacement Considerations

The 74HCT541D,653 is listed as a parameter-equivalent alternative from Nexperia. Cross-check pinout compatibility and ensure the substitute maintains identical HCT logic level specifications and package dimensions before implementation.