NXP Semiconductors 74LV541N,112

Overview

74LV541N,112 from NXP Semiconductors is an octal non-inverting 3-state buffer/line driver in a 20-pin DIP package, operating from 1.0 V to 3.6 V supply, with dual active-low output enable inputs (OE1, OE2), −40 °C to +125 °C temperature range, and TTL-level input compatibility at VCC ≥ 2.7 V. It serves as a bidirectional bus interface or address/data line driver in low-voltage industrial control systems.

For engineers reviewing the 74LV541N,112 datasheet, 74LV541N,112 pinout, 74LV541N,112 application, or 74LV541N,112 equivalent, key selection criteria include supply voltage flexibility (1.0–3.6 V), guaranteed operation up to +125 °C, 3-state output control timing (enable/disable < 47 ns at 3.3 V), ground bounce performance (< 0.8 V), and DIP20 through-hole compatibility for legacy board designs.

Technical Context

The 74LV541N,112 implements eight independent non-inverting buffer channels, each with high-impedance (Z) output control via two shared active-low enables (OE1 and OE2). Its Si-gate CMOS architecture ensures pin and functional compatibility with 74HC541 and 74HCT541 while enabling lower-voltage operation.

Input thresholds are TTL-compatible when VCC is 2.7 V–3.6 V (VIH = 2.0 V min, VIL = 0.8 V max), and static drive capability supports ±8 mA output current at 3.0 V. Propagation delay is 10 ns typical (An to Yn, CL = 15 pF, VCC = 3.3 V), with enable/disable times of 19 ns and 21 ns typical under identical conditions.

Key Specifications

Pinout & Package

74LV541N,112 uses the SOT146-1 plastic dual in-line package (DIP20) with 300-mil body width, 2.54 mm lead pitch, and through-hole mounting. Pin 1 is index-marked; leads are tin-plated copper alloy per JEDEC MS-001.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal buffer/line driver applications.

Compared with 74LV541N,112, the SO20 74LV541D,118 offers identical performance in a smaller footprint but mandates SMT assembly, while SN74LV541APWR provides second-source availability but demands layout revision due to non-identical pin mapping and package dimensions.

Availability

74LV541N,112 is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and legacy system upgrades requiring stable component supply, long-term obsolescence management, and through-hole manufacturability.

Supply support for 74LV541N,112 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The 74LV541N,112 belongs to NXP's LV logic family, designed specifically for low-voltage interoperability across mixed-supply systems while maintaining compatibility with industry-standard 74-series functions and pinouts.

FAQ

What is the maximum supply voltage rating for the 74LV541N,112?

The absolute maximum supply voltage (VCC) for the 74LV541N,112 is +4.6 V, as specified in Table 4 (Limiting Values) of the NXP datasheet. However, recommended operation is limited to 1.0 V–3.6 V. Exceeding 3.6 V risks violating recommended conditions and may accelerate parametric drift or reduce long-term reliability, even if within absolute maximum ratings.

Does the 74LV541N,112 support true bidirectional data flow?

No, the 74LV541N,112 is a unidirectional non-inverting buffer: signals flow only from A0–A7 inputs to Y0–Y7 outputs. It does not contain internal direction control or bus transceiver logic. For bidirectional operation, a separate transceiver such as the 74LV245 would be required. The 74LV541N,112's 3-state outputs allow it to share a common bus line, but data direction must be managed externally.

Can the 74LV541N,112 be used with a 5 V microcontroller output?

Yes - when VCC is set to 2.7 V–3.6 V, the 74LV541N,112 accepts TTL-level inputs, meaning a 5 V logic HIGH from a microcontroller will be recognized as valid VIH (≥2.0 V). Input clamping diodes limit voltage stress, and IIK is rated to −20 mA, ensuring safe operation without external resistors, provided VCC remains within its 1.0–3.6 V range.

What is the purpose of having two output enable inputs (OE1 and OE2) on the 74LV541N,112?

The dual OE inputs (OE1 and OE2) provide redundant or hierarchical 3-state control: both must be LOW to enable outputs; if either is HIGH, all Y0–Y7 enter high-impedance. This allows flexible system-level design - for example, OE1 can serve as local device enable while OE2 acts as global bus shutdown signal, improving fault containment and power sequencing robustness in complex backplanes.

Is the 74LV541N,112 RoHS compliant and halogen-free?

Yes, the 74LV541N,112 is RoHS compliant and halogen-free per NXP's product change notification PCN12021 and material declarations. The DIP20 package (SOT146-1) uses lead-free matte tin plating on leads and meets JEDEC J-STD-609A Class 1 for halogen content (< 900 ppm bromine, < 900 ppm chlorine, total ≤ 1500 ppm). Full compliance documentation is available upon request from Aetrix Electronics.