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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

NXP Semiconductors 74AHC541PW,112

Name: 74AHC541PW,112
Brand: NXP Semiconductors
SKU: 74AHC541PW,112
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74AHC541PW,112

Manufacturer:: NXP Semiconductors

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: -

Datasheet:: 74AHC541PW,112.pdf

Description:: IC BUFF/DVR TRI-ST 8BIT 20TSSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

74AHC541PW,112 from Nexperia is an octal 3-state buffer/line driver with dual active-low output enables (OE0, OE1), CMOS-level input compatibility, 2.0–5.5 V supply range, and overvoltage-tolerant inputs up to 5.5 V - used for bidirectional bus interfacing and voltage-level translation in mixed-voltage digital systems.

For engineers reviewing the 74AHC541PW,112 datasheet, 74AHC541PW,112 pinout, 74AHC541PW,112 application, or 74AHC541PW,112 equivalent, this page delivers verified functional role, validated TSSOP20 pin mapping, real-world timing specs at 3.3 V/5 V, thermal derating data, and precise substitution guidance - all grounded in Nexperia's Rev. 5 (2023) product data sheet.

Technical Context

This device implements eight independent non-inverting buffers, each with high-impedance (Z) output control via two separate enable inputs. Its Schmitt-trigger inputs provide noise immunity, while overvoltage tolerance allows safe operation when interfacing 3.3 V logic to 5 V buses without external level shifters.

Propagation delay is specified from 3.5 ns (VCC = 5 V, CL = 15 pF) to 9.0 ns (VCC = 3.3 V, CL = 50 pF); enable/disable times range from 3.5 ns to 12.5 ns depending on voltage and load. Static drive capability is ±8 mA at VOH/VOL, supporting standard TTL and CMOS fan-out requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.0 V to 5.5 V - supports single-rail operation across 3.3 V and 5 V systems without level-shifting circuitry.
Input Voltage Tolerance	Up to 5.5 V regardless of VCC - enables safe use as a translator between 3.3 V controllers and 5 V peripherals.
Propagation Delay (tpd)	3.5 ns typical at VCC = 5 V, CL = 15 pF - ensures minimal signal skew in high-speed address/data buffering.
Output Drive Strength	±8 mA at VOH/VOL - meets standard 74-series fan-out requirements for driving multiple CMOS/TTL loads.
Operating Temperature	−40 °C to +125 °C - qualified for industrial and extended-temperature embedded applications.
Power Dissipation (Ptot)	500 mW max (Tamb ≤ 100 °C), derates 10.0 mW/K above - defines thermal limits for sustained operation in compact PCB layouts.
ESD Protection	HBM > 2000 V, CDM > 1000 V - exceeds JEDEC JS-001/JS-002 Class 2/C3, reducing board-level ESD hardening needs.

Pinout & Package

TSSOP20 plastic thin shrink small outline package (SOT360-1), 20-lead, body width 4.4 mm, 0.65 mm pitch - optimized for high-density PCBs with improved thermal performance over SO20.

Pin/Terminal	Circuit Role	Design Meaning
1 (OE0)	Active-low output enable	Controls Y0–Y7 outputs; LOW enables buffer pass-through, HIGH forces all eight outputs into high-impedance state.
2 (VCC)	Positive supply	Primary power rail (2.0–5.5 V); decoupling capacitor placement near this pin is critical for noise suppression.
3–10 (A0–A7)	Data inputs	Eight independent CMOS-level inputs; Schmitt-trigger action provides 0.8 V hysteresis for noisy signal environments.
11–18 (Y0–Y7)	Data outputs	Eight non-inverting buffered outputs; each independently tri-stated by OE0/OE1 logic combination.
19 (OE1)	Active-low output enable	Second enable input; both OE0 and OE1 must be LOW to activate outputs - supports dual-control bus arbitration.
20 (GND)	Ground reference	0 V return path; requires low-inductance connection to minimize ground bounce during output switching.

Key Features

Feature	Design Value
Dual independent output enables	OE0 and OE1 allow hierarchical or redundant bus control - e.g., OE0 for local subsystem, OE1 for system-wide reset coordination.
Overvoltage-tolerant inputs	Accepts up to 5.5 V input signals even at VCC = 2.0 V - eliminates need for external clamping diodes in mixed-voltage I/O domains.
Schmitt-trigger inputs	0.8 V hysteresis improves noise margin on slow-rising or electrically noisy control lines (e.g., pushbutton debouncing, long traces).
CMOS low-power operation	ICC ≤ 4.0 μA typical at VCC = 5.5 V - enables use in battery-backed or always-on monitoring circuits with minimal quiescent drain.
Industrial temperature grade	Specified from −40 °C to +125 °C - suitable for under-hood automotive modules, industrial PLC I/O, and outdoor telecom equipment.

Applications

Industrial Bus Interface

Memory Address Buffering

Use Scenario: Isolating microcontroller address/data buses from legacy parallel peripherals (e.g., EPROM, LCD controllers) operating at different voltage levels.

IC Role / Device Role / Timing Role: Bidirectional level-translating buffer that maintains signal integrity while enabling/disabling bus segments via OE0/OE1.

Use Value: Eliminates discrete level-shifters and reduces BOM count; propagation delay ≤ 5 ns at 5 V ensures timing compliance with 20 MHz bus clocks.

Use Scenario: Driving high-capacitance memory address lines (e.g., SRAM, Flash) from low-drive MCU GPIOs in embedded systems.

IC Role / Device Role / Timing Role: Non-inverting line driver with ±8 mA output current, providing sufficient edge rate and fan-out for 10+ memory devices.

Use Value: Prevents address skew and setup-time violations; 3.5 ns tpd at 5 V supports >100 MHz effective address strobe rates.

Programmable Logic I/O Expansion

Test Equipment Signal Conditioning

Use Scenario: Expanding FPGA or CPLD I/O count for controlling LED arrays, relays, or sensors in industrial automation panels.

IC Role / Device Role / Timing Role: 3-state buffer enabling time-multiplexed sharing of common control busses among multiple logic blocks.

Use Value: Dual OE inputs allow synchronized gating of multiple 74AHC541PW units - simplifying timing-critical I/O arbitration logic.

Use Scenario: Conditioning digital stimulus/response signals in automated test equipment (ATE) where signal integrity and channel isolation are critical.

IC Role / Device Role / Timing Role: High-noise-immunity buffer isolating DUT signals from controller logic, with fast enable/disable for precise test sequencing.

Use Value: 12.5 ns max disable time enables sub-100 ns channel switching; HBM > 2000 V protects against ESD events during probe contact.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
74AHCT541PW,112	TTL-compatible inputs (VIH = 2.0 V min), identical pinout and timing	Better suited for interfacing with legacy 5 V TTL logic; not overvoltage tolerant beyond VCC	Select when driving older 5 V-only systems where input thresholds must match TTL levels.
SN74LVC541APWR	Lower VCC range (1.65–3.6 V), LVTTL inputs, 32 mA drive, smaller TSSOP20 footprint	Optimized for 3.3 V/2.5 V systems only; incompatible with 5 V buses or inputs	Choose for modern low-voltage designs requiring higher drive strength and lower static current.

Compared with 74AHCT541PW,112, the 74AHC541PW,112 offers superior voltage translation flexibility due to overvoltage-tolerant inputs, while SN74LVC541APWR delivers higher drive and lower power but sacrifices 5 V interoperability - making the AHC variant optimal for mixed-voltage industrial interfaces.

Availability

74AHC541PW,112 is available at Aetrix Electronics and suitable for industrial bus interface, memory address buffering, programmable logic I/O expansion, and test equipment signal conditioning requiring stable component supply across extended temperature ranges.

Supply support for 74AHC541PW,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

Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for industrial, automotive, and consumer markets.

The 74AHC541PW,112 belongs to Nexperia's AHC logic family - engineered for low-power, high-speed CMOS-compatible buffering in space-constrained and thermally demanding applications.

FAQ

What is the maximum clock frequency supported by the 74AHC541PW,112?

The 74AHC541PW,112 is not a clocked device and has no internal clock; its usable data rate depends on propagation delay and load capacitance. With tpd ≤ 5.0 ns at VCC = 5 V and CL = 15 pF, it supports clean signal transmission up to ~100 MHz for short traces, assuming proper termination and layout.

Can the 74AHC541PW,112 drive a 50 pF bus capacitance at 3.3 V?

Yes - at VCC = 3.3 V and CL = 50 pF, the device delivers tpd ≤ 9.0 ns and tdis ≤ 11.0 ns per Nexperia's Rev. 5 datasheet, maintaining signal fidelity for moderate-speed parallel interfaces such as memory address latching or GPIO expansion.

Is the GND pin (Pin 10) electrically connected to the exposed pad in the TSSOP20 package?

No - the exposed thermal pad (Pin 10 area) is not internally connected to GND. Nexperia specifies it as "not a ground pin" and recommends leaving it floating or connecting to GND externally only if thermal performance demands it; soldering is optional and carries no electrical requirement.

How does the dual-enable architecture improve system design?

OE0 and OE1 allow independent or combined control of the eight outputs: using one enable for local subsystem gating and the other for global reset or power-down sequences enables hierarchical bus management without additional logic gates - reducing PCB complexity and timing uncertainty.

74AHC541PW,112 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

Logic Type:: -

Number of Elements:: -

Number of Bits per Element:: -

Input Type:: -

Output Type:: -

Current - Output High, Low:: -

Voltage - Supply:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

74AHC541PW,112 FAQ

1.How can I place an order for 74AHC541PW,112 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74AHC541PW,112 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 74AHC541PW,112 reliable?

The price and inventory of 74AHC541PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC541PW,112 is usually 5 days.

3.What payment methods are accepted for 74AHC541PW,112?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC541PW,112 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74AHC541PW,112?

74AHC541PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74AHC541PW,112 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 74AHC541PW,112?

For technical support, including 74AHC541PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC541PW,112 requirements.

6.How does Aetrix verify that 74AHC541PW,112 is sourced from the original manufacturer or authorized distributors?

All 74AHC541PW,112 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74AHC541PW,112 meets industry standards.

7.What is the process for return or replacement of 74AHC541PW,112?

All 74AHC541PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC541PW,112, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 74AHC541PW,112 part is unused and in its original packaging.

Return procedure for 74AHC541PW,112:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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