74HCT541N,652

Overview

The 74HCT541N,652 is an octal non-inverting buffer and line driver featuring three-state outputs manufactured by NXP USA Inc. It operates within a supply voltage range of 4.5 V to 5.5 V and accepts TTL-level inputs. The device includes two active-low output enable inputs (OE1 and OE2) that control the high-impedance OFF-state. Input clamp diodes allow interfacing with voltages exceeding VCC using current-limiting resistors. It complies with JEDEC standard no. 7A and provides ESD protection exceeding 2000 V (HBM) and 200 V (MM).

Feature Summary

• Octal non-inverting buffer/line driver with three-state outputs.
• Dual active-low output enables for bus driving applications.
• TTL-compatible input levels for direct interface with logic systems.
• Input clamp diodes facilitate voltage translation via current limiting.

Applications

• Bus-oriented memory and address drivers.
• Clock drivers and buffering.
• Transceiver circuits requiring direction control.
• I/O port expansion in embedded systems.

Procurement Notes

Verify the specific ordering suffix '652' against the manufacturer's current production status, as availability may vary. Confirm package type DIP20 (SOT146-1) matches the design requirements. Ensure compliance with RoHS directives and check for any recent product change notices or end-of-life notifications from Nexperia/NXP before finalizing procurement plans.

Selection Notes

Select this component when TTL-level compatibility is required for CMOS-based designs. The HCT series ensures noise immunity suitable for industrial environments. Verify that the operating temperature range of -40 °C to +125 °C meets the application's thermal constraints. Consider the DIP20 package dimensions if through-hole mounting is specified.

Part Context

This part belongs to the 74HCT541 family of octal buffers. It is pin-compatible with low-power Schottky TTL (LSTTL) devices. The 'N' indicates a plastic dual in-line package, while '652' denotes the specific reel/packaging configuration defined by the manufacturer. It is part of the broader 74HC/HCT logic family designed for high-speed digital applications.

Replacement Considerations

Direct substitutes include other 74HCT541 variants from different manufacturers such as SN74HCT541N (Texas Instruments) or MC74HCT541ADWR2G (onsemi), provided they match the DIP20 package and electrical specifications.