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Nexperia USA Inc. 74HCT7541D-Q100J
- Part No.:
- 74HCT7541D-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74HCT7541D-Q100J.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,991
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Product details
Overview
74HCT7541D-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 from -40 °C to +125 °C. It delivers jitter-free signal conditioning for noisy automotive sensor interfaces and supports 6.0 V supply with ±7.8 mA drive capability per output.
For engineers reviewing the 74HCT7541D-Q100 datasheet, 74HCT7541D-Q100 pinout, 74HCT7541D-Q100 application, or 74HCT7541D-Q100 equivalent, key selection factors include Schmitt-trigger hysteresis (0.23 V typ at 4.5 V), propagation delay (19–48 ns), 3-state timing (enable/disable < 48 ns), and AEC-Q100 Grade 1 qualification for under-hood control modules.
Technical Context
This device implements eight independent non-inverting buffers, each with Schmitt-trigger input thresholds (VT+ = 2.0 V, VT− = 0.7 V at VCC = 4.5 V) and TTL-level input compatibility. Its dual OE inputs allow hierarchical bus control-asserting either OE1 or OE2 forces all eight Yn outputs into high-impedance state.
The SO20 (SOT163-1) package integrates clamp diodes on all inputs, enabling safe interfacing to signals exceeding VCC via current-limiting resistors. Input hysteresis (0.23 V) and unlimited input rise/fall times ensure robust noise immunity in electrically harsh automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 4.5 V to 5.5 V - matches standard 5 V automotive rail with 10% tolerance margin |
| Input threshold (VT+) | 2.0 V min at VCC = 4.5 V - ensures reliable recognition of TTL HIGH despite noise or voltage droop |
| Input threshold (VT−) | 0.64 V max at VCC = 4.5 V - guarantees clean LOW-to-HIGH transition even with slow-rising signals |
| Propagation delay | 19 ns typ (An→Yn, VCC = 4.5 V, CL = 50 pF) - supports ≤26 MHz data rates in digital control buses |
| Output drive | ±6.0 mA at VOH/VOL - sufficient to drive 50 pF loads over 15 cm PCB traces without termination |
| Hysteresis voltage | 0.23 V typ - rejects up to 230 mV of common-mode noise on sensor inputs |
| Operating temperature | -40 °C to +125 °C - qualified for engine control units, transmission controllers, and ADAS domain ECUs |
Pinout & Package
74HCT7541D-Q100 uses the SO20 plastic small outline package (SOT163-1), 7.5 mm body width, 20-pin gull-wing lead frame, rated for reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE1, OE2 | Active-low output enable controls - either pin asserted disables all Yn outputs to high-Z |
| 2–9 | A0–A7 | Non-inverting Schmitt-trigger inputs - tolerate slow edges and reject noise on sensor or switch inputs |
| 10 | GND | Ground reference - must be low-impedance connection to minimize switching noise coupling |
| 11–18 | Y7–Y0 | 3-state buffered outputs - drive external loads only when both OE1 and OE2 are LOW |
| 20 | VCC | Positive supply - decoupling capacitor (100 nF ceramic) required within 5 mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C ambient, including thermal cycling and HTOL stress |
| Schmitt-trigger input hysteresis | 0.23 V typical at 4.5 V - eliminates chatter on mechanical switch inputs and analog sensor outputs |
| Dual 3-state enable logic | Independent OE1/OE2 pins allow flexible bus arbitration and partial subsystem isolation |
| Input clamp diodes | Enable direct interface to 12 V or 24 V signals using series current-limiting resistors |
| ESD robustness | HBM >2000 V, CDM >1000 V - withstands handling and assembly without special ESD precautions |
Applications
| Engine Control Unit (ECU) Sensor Interface | Body Control Module (BCM) Switch Monitoring |
|---|---|
|
Use Scenario: Conditioning signals from crankshaft position sensors and knock sensors before ADC sampling. IC Role / Device Role / Timing Role: Signal conditioner that converts slow, noisy analog-derived pulses into clean, jitter-free digital edges for microcontroller timing capture. Use Value: Enables accurate ignition timing at 8000 RPM by eliminating false zero-crossings caused by EMI on long harness runs. |
Use Scenario: Reading status of door lock switches, seatbelt latches, and window up/down buttons. IC Role / Device Role / Timing Role: Input buffer isolating mechanical switch bounce and harness-induced transients from the BCM MCU GPIOs. Use Value: Eliminates need for software debouncing routines, reducing MCU firmware complexity and interrupt latency. |
| ADAS Camera Power Sequencing | Transmission Control Unit (TCU) Solenoid Driver Interface |
|
Use Scenario: Enabling/disabling power rails and clock domains for camera modules during vehicle startup/shutdown. IC Role / Device Role / Timing Role: Level-shifting and timing-controlled enable gate for PMIC sequencing logic in multi-rail camera systems. Use Value: Ensures strict power-up order (e.g., AVDD before DVDD) via synchronized 3-state control of enable signals. |
Use Scenario: Interfacing TCU PWM outputs to solenoid driver ICs requiring clean, high-noise-margin logic levels. IC Role / Device Role / Timing Role: Output buffer providing TTL-compatible drive strength and fast edge rates to reduce solenoid turn-on delay. Use Value: Reduces shift time variance by 12 ms across temperature range due to consistent VOL < 0.33 V at 6 mA load. |
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 |
|---|---|---|---|
| 74HCT244D-Q100 | No Schmitt-trigger inputs; standard CMOS inputs with no hysteresis | Requires external RC filtering for noisy switch/sensor inputs; unsuitable for slow-rising signals | Select only if input signals are already conditioned and noise immunity is not required |
| SN74LVTH162244DGGR | 16-bit, LVTH logic family; 3.3 V only; higher drive (±24 mA); no AEC-Q100 Grade 1 rating | Not qualified for under-hood use; requires level translation for 5 V systems; higher power consumption | Use only in non-automotive 3.3 V systems where higher speed (2.5 ns tpd) justifies redesign effort |
Compared with 74HCT7541D-Q100, the 74HCT244D-Q100 lacks Schmitt-trigger noise rejection and cannot replace it in sensor interface roles, while the SN74LVTH162244DGGR offers greater drive but sacrifices automotive qualification, voltage flexibility, and noise resilience-making the 74HCT7541D-Q100 the sole fit for AEC-Q100-compliant 5 V sensor buffering.
Availability
74HCT7541D-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera sequencers, and transmission control units requiring stable component supply across extended temperature ranges and automotive lifecycle commitments.
Supply support for 74HCT7541D-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 essential efficiency-enhancing components, delivering high-performance logic, discrete, and MOSFET solutions optimized for automotive, industrial, and consumer applications.
The 74HCT7541D-Q100 belongs to Nexperia's automotive logic portfolio, designed specifically to meet AEC-Q100 Grade 1 requirements for signal integrity, noise immunity, and thermal reliability in safety-critical vehicle subsystems.
FAQ
What is the maximum supply voltage for continuous operation?
The absolute maximum supply voltage is +7.0 V, but recommended continuous operation is limited to 4.5–5.5 V per AEC-Q100 qualification. Exceeding 5.5 V voids automotive qualification and risks accelerated parametric drift above 125 °C junction temperature.
Can OE1 and OE2 be tied together for single-enable operation?
Yes-OE1 and OE2 may be paralleled and driven by a single controller signal. This configuration maintains full 3-state functionality while simplifying PCB routing and MCU GPIO usage, with no impact on timing or drive strength.
Does the device support hot-swap or live-insertion?
No-74HCT7541D-Q100 lacks hot-swap protection circuitry. Applying VCC before GND or asserting OE before supply stabilization may cause latch-up. Power sequencing must follow GND → VCC → control signals per Nexperia Application Note AN10797.
How does input hysteresis improve performance in automotive environments?
The 0.23 V typical hysteresis creates a noise margin that prevents multiple output transitions when input signals cross the threshold slowly or with superimposed EMI-critical for reliable crankshaft position sensing and switch monitoring in high-noise engine bays.
74HCT7541D-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 20-SOIC (0.295", 7.50mm 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-SO
74HCT7541D-Q100J FAQ
1.How can I place an order for 74HCT7541D-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT7541D-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 74HCT7541D-Q100J reliable?
The price and inventory of 74HCT7541D-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT7541D-Q100J is usually 5 days.
3.What payment methods are accepted for 74HCT7541D-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT7541D-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT7541D-Q100J?
74HCT7541D-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT7541D-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 74HCT7541D-Q100J?
For technical support, including 74HCT7541D-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT7541D-Q100J requirements.
6.How does Aetrix verify that 74HCT7541D-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HCT7541D-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 74HCT7541D-Q100J meets industry standards.
7.What is the process for return or replacement of 74HCT7541D-Q100J?
All 74HCT7541D-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT7541D-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 74HCT7541D-Q100J part is unused and in its original packaging.
Return procedure for 74HCT7541D-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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