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

Nexperia USA Inc. 74HCT7541PW-Q100J

Name: 74HCT7541PW-Q100J
Brand: Nexperia USA Inc.
SKU: 74HCT7541PW-Q100J
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74HCT7541PW-Q100J

Manufacturer:: Nexperia USA Inc.

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 20-TSSOP (0.173", 4.40mm Width)

Datasheet:: 74HCT7541PW-Q100J.pdf

Description:: IC BUF NON-INVERT 5.5V 20TSSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

74HCT7541PW-Q100 from Nexperia is an automotive-qualified octal Schmitt-trigger buffer/line driver with 3-state outputs, dual active-low output enables (OE1, OE2), TTL-compatible inputs, and operation across -40 °C to +125 °C. It provides noise-immune signal conditioning for digital bus interfacing in engine control units, body electronics, and ADAS sensor interfaces.

For engineers reviewing the 74HCT7541PW-Q100 datasheet, 74HCT7541PW-Q100 pinout, 74HCT7541PW-Q100 application, or 74HCT7541PW-Q100 equivalent, key selection criteria include Schmitt-trigger hysteresis (0.23 V at VCC = 4.5 V), 3-state timing (t_en = 18 ns typ, t_dis = 20 ns typ at VCC = 4.5 V), TTL-level input compatibility, and AEC-Q100 Grade 1 qualification.

Technical Context

This device implements eight independent non-inverting buffers, each with Schmitt-trigger inputs that convert slow-rising/falling signals into clean digital transitions-critical for noisy automotive environments. Input hysteresis (V_H = 0.23 V) and rail-to-rail input voltage tolerance (0 to V_CC) enable robust interfacing with legacy analog or marginal logic sources.

Its dual active-low output enables (OE1, OE2) allow hierarchical bus control: both must be LOW for normal output drive; either HIGH forces all eight outputs into high-impedance state. The design supports hot-swap and multi-drop bus architectures without contention.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	4.5 V to 5.5 V - Ensures compatibility with standard 5 V automotive power rails and supports stable operation under load dump transients.
Input Thresholds	V_T+ = 2.0 V, V_T− = 0.7 V at V_CC = 4.5 V - Enables reliable recognition of TTL logic levels while rejecting sub-threshold noise.
Output Drive	±6.0 mA at V_CC = 4.5 V - Sufficient to drive 50 pF loads with <32 ns propagation delay, supporting medium-speed CAN/LIN peripheral buffering.
Enable Timing	t_en = 18 ns, t_dis = 20 ns (typ, V_CC = 4.5 V) - Allows fast bus arbitration and dynamic output gating in real-time control loops.
Quiescent Current	I_CC = 8.0 μA (typ) - Minimizes standby power in always-on vehicle modules such as gateway ECUs and domain controllers.
ESD Robustness	HBM > 2000 V, CDM > 1000 V - Meets stringent automotive ESD requirements for assembly and field reliability.
Operating Temperature	-40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood and cabin-mounted applications.

Pinout & Package

TSSOP20 plastic thin shrink small outline package (SOT360-1), 20-pin, 4.4 mm body width, 0.65 mm pitch - optimized for high-density automotive PCB layouts with thermal performance derating of 10.0 mW/K above 100 °C.

Pin/Terminal	Circuit Role	Design Meaning
1, 19	OE1, OE2	Active-low output enable inputs - simultaneous assertion required for output drive; either HIGH disables all Y_n outputs to high-Z.
2–9	A0–A7	Non-inverting Schmitt-trigger inputs - accept slow or noisy signals (e.g., from sensors or switches) and deliver jitter-free digital outputs.
10	GND	Ground reference - dedicated low-inductance return path essential for noise immunity in mixed-signal automotive systems.
11–18	Y0–Y7	3-state buffered outputs - drive buses or downstream logic with controlled rise/fall times (t_t = 5–12 ns) and ±6 mA capability.
20	V_CC	Positive supply - decoupling capacitor placement near this pin is critical to suppress switching noise in engine control modules.

Key Features

Feature	Design Value
AEC-Q100 Grade 1 qualification	Validated for automotive use from -40 °C to +125 °C ambient, including temperature cycling, humidity, and vibration stress testing.
Schmitt-trigger input hysteresis	0.23 V at V_CC = 4.5 V - eliminates chatter on mechanical switch inputs and improves noise margin by >300 mV over standard CMOS.
Dual 3-state enable architecture	Independent OE1/OE2 pins - enables hierarchical bus control (e.g., master/slave arbitration) without external logic or timing constraints.
TTL-compatible input thresholds	V_T+ = 2.0 V, V_T− = 0.7 V - ensures interoperability with legacy 5 V microcontrollers and discrete logic without level-shifting.
Clamp diode protection	Input clamping current ±20 mA - permits safe interface to voltages exceeding V_CC when used with current-limiting resistors (e.g., for wake-up line monitoring).

Applications

Engine Control Unit (ECU) Signal Conditioning

Body Control Module (BCM) Switch Interface

Use Scenario: Buffering and debouncing analog throttle position sensor outputs before ADC sampling in a gasoline ECU.

IC Role / Device Role / Timing Role: Schmitt-trigger input cleans slow-rising potentiometer wiper signals; 3-state outputs isolate during ADC conversion windows to prevent bus contention.

Use Value: Eliminates software debouncing overhead and reduces EMI-induced false triggers in high-noise ignition environments.

Use Scenario: Interfacing mechanical door lock/unlock switches to a BCM microcontroller with shared I/O lines.

IC Role / Device Role / Timing Role: Converts slow, bounce-prone switch closures into clean digital edges; dual OE pins allow synchronized enable/disable with other peripherals.

Use Value: Reduces firmware complexity and eliminates need for external RC filters or GPIO polling routines.

ADAS Camera Module Power Sequencing

LIN Bus Transceiver Support Logic

Use Scenario: Enabling/disabling camera sensor power rails via microcontroller-controlled enable signals in a surround-view system.

IC Role / Device Role / Timing Role: Acts as a level-shifted, noise-immune buffer between 3.3 V MCU GPIO and 5 V power FET gate drivers; 3-state allows safe power-down sequencing.

Use Value: Prevents shoot-through during power-up/down transitions and ensures deterministic reset behavior across temperature extremes.

Use Scenario: Driving LIN transceiver enable and direction control lines in a smart junction box with multiple LIN nodes.

IC Role / Device Role / Timing Role: Buffers MCU UART TX/RX and LIN direction signals; Schmitt inputs tolerate LIN bus voltage fluctuations during fault conditions.

Use Value: Improves LIN communication reliability during battery voltage sag (<9 V) and electromagnetic interference from adjacent high-current circuits.

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal Schmitt-trigger buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74HCT244QPWRQ1	Non-Schmitt inputs; identical 3-state architecture and AEC-Q100 Grade 1 rating.	Lacks hysteresis - unsuitable for noisy switch/sensor inputs but lower input capacitance (3.0 pF vs 3.5 pF) benefits high-frequency bus driving.	Select when interfacing clean logic sources and prioritizing minimal capacitive loading over noise immunity.
74LVC8T244PW-Q100	3.3 V-only supply (1.65–3.6 V); LVCMOS inputs; higher drive (±24 mA); no Schmitt trigger.	Designed for modern low-voltage domains (e.g., infotainment SoCs); incompatible with 5 V buses or legacy sensors without level shifters.	Choose only for 3.3 V-only systems requiring higher speed or drive strength; not drop-in compatible with 5 V infrastructure.

Compared with SN74HCT244QPWRQ1 and 74LVC8T244PW-Q100, the 74HCT7541PW-Q100 uniquely delivers Schmitt-trigger noise rejection within a 5 V automotive bus environment-making it irreplaceable for legacy sensor interfacing where signal integrity cannot be guaranteed by upstream circuitry.

Availability

74HCT7541PW-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera power management, and LIN bus support circuits requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HCT7541PW-Q100 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 focused on high-volume, high-reliability logic, discrete, and MOSFET solutions, with deep expertise in automotive-grade component qualification and manufacturing.

The 74HCT7541PW-Q100 belongs to Nexperia's AEC-Q100-qualified HC/HCT logic family, engineered specifically for robust signal conditioning and bus interfacing in automotive electronic control units where noise immunity and thermal stability are mission-critical.

FAQ

What is the maximum clock frequency supported by the 74HCT7541PW-Q100?

The 74HCT7541PW-Q100 is not a clocked device-it has no internal clock and operates asynchronously. Its usable signal bandwidth is determined by propagation delay (19 ns typ) and transition time (5–12 ns). For clean 50 pF loads, it reliably handles digital edges up to ~25 MHz, assuming sufficient setup/hold margins for downstream logic.

Can OE1 and OE2 be tied together for single-enable operation?

Yes-OE1 and OE2 can be connected to a common control signal. The functional table confirms that a HIGH on either OE pin places all outputs in high-impedance state. Tying them simplifies board routing and reduces GPIO usage, with no impact on timing or drive capability.

Does the device support hot-swap insertion into a live 5 V bus?

Yes-the input clamp diodes (±20 mA rating) and 3-state outputs enable safe hot-swap operation. When powered off, inputs remain protected against V_CC-exceeding signals, and outputs default to high-Z, preventing bus contention. Ensure current-limiting resistors are used on inputs per datasheet guidance.

How does the Schmitt-trigger hysteresis improve performance in automotive environments?

The 0.23 V hysteresis (at V_CC = 4.5 V) prevents output oscillation caused by electromagnetic interference, contact bounce, or slow-rising signals from thermistors or potentiometers. This eliminates false triggering in safety-critical functions like brake light activation or gear position sensing without requiring additional firmware filtering.

74HCT7541PW-Q100J Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74HCT

Package/Case:: 20-TSSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 1

Number of Bits per Element:: 8

Input Type:: Schmitt Trigger

Output Type:: 3-State

Current - Output High, Low:: 6mA, 6mA

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 20-TSSOP

74HCT7541PW-Q100J FAQ

1.How can I place an order for 74HCT7541PW-Q100J through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HCT7541PW-Q100J 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 74HCT7541PW-Q100J reliable?

The price and inventory of 74HCT7541PW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT7541PW-Q100J is usually 5 days.

3.What payment methods are accepted for 74HCT7541PW-Q100J?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT7541PW-Q100J transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74HCT7541PW-Q100J?

74HCT7541PW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HCT7541PW-Q100J 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 74HCT7541PW-Q100J?

For technical support, including 74HCT7541PW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT7541PW-Q100J requirements.

6.How does Aetrix verify that 74HCT7541PW-Q100J is sourced from the original manufacturer or authorized distributors?

All 74HCT7541PW-Q100J 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 74HCT7541PW-Q100J meets industry standards.

7.What is the process for return or replacement of 74HCT7541PW-Q100J?

All 74HCT7541PW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT7541PW-Q100J, 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 74HCT7541PW-Q100J part is unused and in its original packaging.

Return procedure for 74HCT7541PW-Q100J:

1.Submit a request within 90 days.

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

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