NXP Semiconductors 74LV541D,112

Overview

74LV541D,112 from NXP Semiconductors is an octal non-inverting 3-state buffer/line driver in SO20 package, operating from 1.0 V to 3.6 V supply, with dual active-low output enables (OE1, OE2), −40 °C to +125 °C temperature range, and TTL-level input compatibility at VCC ≥ 2.7 V. It serves as a bus interface or data isolation device in low-voltage digital systems.

For engineers reviewing the 74LV541D,112 datasheet, 74LV541D,112 pinout, 74LV541D,112 application, or 74LV541D,112 equivalent, key selection criteria include supply voltage flexibility (1.0–3.6 V), guaranteed 3-state timing (enable/disable < 47 ns at 3.3 V), low ICC (< 160 µA at 3.6 V), ESD robustness (HBM > 2000 V), and industrial-temperature operation.

Technical Context

The 74LV541D,112 implements eight independent non-inverting buffer channels, each with high-impedance (Z) output control via two shared active-low enable inputs (OE1 and OE2). All outputs enter high-impedance state when either OE1 or OE2 is HIGH.

Its CMOS Si-gate architecture ensures compatibility with both LV and TTL logic families across its full 1.0–3.6 V VCC range, while propagation delay (tpd) scales predictably with supply voltage - from 60 ns at 1.2 V to 11 ns at 3.3 V - enabling precise timing budgeting in mixed-voltage designs.

Key Specifications

Pinout & Package

74LV541D,112 uses the SO20 (SOT163-1) plastic small outline package: 20-pin, 7.5 mm body width, 1.27 mm pitch, gull-wing leads, JEDEC MS-013 compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal non-inverting 3-state buffer applications.

Compared with 74LV541D,112, the 74LVC541APW,118 offers superior static power efficiency but sacrifices sub-1.65 V operation, while SN74LV541ADW matches electrical behavior but demands mechanical redesign - making 74LV541D,112 optimal for drop-in replacement in existing SO20 layouts requiring full 1.0 V support.

Availability

74LV541D,112 is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and portable instrumentation requiring stable component supply across extended temperature ranges and multi-voltage logic interfaces.

Supply support for 74LV541D,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 74LV541D,112 belongs to NXP's LV logic family, designed specifically for interoperability across mixed-voltage digital systems while maintaining industrial-grade reliability and ESD resilience.

FAQ

What is the minimum supply voltage at which 74LV541D,112 guarantees full functionality?

The 74LV541D,112 is specified to operate down to 1.0 V supply voltage, with static characteristics guaranteed from 1.2 V and functional operation confirmed at 1.0 V (with inputs at GND or VCC). This enables use in ultra-low-power 1.2 V and 1.8 V domains without level translation. The 74LV541D,112 maintains valid VOH/VOL and timing performance even at this minimum rail.

Does 74LV541D,112 support TTL-level inputs, and under what conditions?

Yes, the 74LV541D,112 accepts TTL input levels when VCC is between 2.7 V and 3.6 V, with VIH ≥ 2.0 V and VIL ≤ 0.8 V - matching standard TTL thresholds. This allows direct connection to legacy 5 V TTL outputs (via pull-up or series resistor if needed) without external level shifters. The 74LV541D,112 does not support TTL inputs below VCC = 2.7 V.

What is the maximum clock/data rate supported by 74LV541D,112 in a bus application?

With a maximum propagation delay of 11 ns at VCC = 3.3 V and CL = 15 pF, the 74LV541D,112 supports reliable data rates up to approximately 45 MHz in point-to-point or lightly loaded bus configurations. For heavily loaded buses (CL > 15 pF), timing must be verified using measured tpd and system-level setup/hold analysis. The 74LV541D,112's consistent delay scaling with VCC allows predictable bandwidth estimation across its full voltage range.

How does the dual output enable (OE1 and OE2) logic work on 74LV541D,112?

The 74LV541D,112 uses OR logic between OE1 (pin 1) and OE2 (pin 19): if either input is HIGH, all eight outputs (Y0–Y7) enter high-impedance state. Both must be LOW for normal non-inverting buffering. This design allows flexible control - e.g., OE1 for system-wide disable and OE2 for local subsystem gating. The 74LV541D,112 functional table confirms Z-state occurs when OE1 = H or OE2 = H, regardless of input states.

Is 74LV541D,112 pin-compatible with 74HC541 or 74HCT541 devices?

Yes, the 74LV541D,112 is explicitly stated as pin and function compatible with 74HC541 and 74HCT541, sharing identical SO20 pinout and logic behavior. However, voltage ranges differ: HC/HCT require 2–6 V, while 74LV541D,112 operates from 1.0–3.6 V. Direct substitution is electrically safe only if VCC ≤ 3.6 V and load conditions remain within LV specifications. The 74LV541D,112 retains the same pin numbering and signal mapping as its HC/HCT counterparts.