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Nexperia USA Inc. 74AHCT541D-Q100J
- Part No.:
- 74AHCT541D-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74AHCT541D-Q100J.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
74AHCT541D-Q100 from Nexperia is an automotive-grade octal 3-state buffer/line driver with dual active-low output enables (OE0, OE1), TTL-compatible input thresholds, 20-pin SO20 package, and operation from -40 °C to +125 °C. It provides bidirectional signal buffering in CAN/LIN interface backplanes, body control modules, and ADAS sensor data routing where level translation and bus isolation are required.
For engineers reviewing the 74AHCT541D-Q100 datasheet, 74AHCT541D-Q100 pinout, 74AHCT541D-Q100 application, or 74AHCT541D-Q100 equivalent, key selection factors include its AEC-Q100 Grade 1 qualification, 5.5 V overvoltage-tolerant inputs, 8.0 mA output drive at 4.5 V, propagation delay ≤5.5 ns (VCC = 5 V, CL = 15 pF), and dual independent 3-state control for flexible bus partitioning.
Technical Context
This device implements a non-inverting 8-bit buffer architecture with two independent active-low output enable inputs (OE0, OE1), allowing selective disabling of two 4-bit output groups (Y0–Y3 and Y4–Y7). Each input features Schmitt-trigger action for noise immunity, and all inputs tolerate up to 5.5 V regardless of VCC, enabling safe interfacing between 3.3 V logic and 5 V subsystems.
It operates across a 4.5–5.5 V supply range with TTL-level input compatibility (VIH = 2.0 V min, VIL = 0.8 V max), delivers ±8.0 mA output current, and maintains balanced tPLH/tPHL propagation delays under load. The SO20 (SOT163-1) package supports industrial reflow and AOI-compatible assembly.
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 tolerance to transient overvoltage. |
| Input Logic Type | TTL-level - Accepts 2.0 V minimum HIGH and 0.8 V maximum LOW, enabling direct connection to legacy microcontrollers and transceivers. |
| Propagation Delay | ≤5.5 ns (VCC = 5.0 V, CL = 15 pF) - Supports high-speed data routing in time-critical domains like sensor fusion and gateway arbitration. |
| Output Drive | ±8.0 mA (VOH/VOL @ VCC = 4.5 V) - Sufficient to drive 50 Ω transmission lines or multiple CMOS loads without external buffers. |
| Operating Temp | -40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood and powertrain applications requiring extended thermal margin. |
| Input Overvoltage | 5.5 V absolute max - Allows safe use as a voltage translator between mixed-supply domains (e.g., 3.3 V MCU to 5 V analog front-end). |
| ESD Rating | HBM >2000 V, CDM >1000 V - Meets automotive robustness requirements for handling and board-level ESD events. |
Pinout & Package
74AHCT541D-Q100 uses the SO20 plastic small outline package (SOT163-1), 20-lead, 7.5 mm body width, with gull-wing leads and standard JEDEC MO-118 footprint. Pin 1 index located at top-left corner with notch marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE0) | Active-low output enable 0 | Controls Y0–Y3 outputs; LOW enables, HIGH places in high-impedance state - enables independent bus segment control. |
| 2 (VCC) | Positive supply | 4.5–5.5 V main power rail; decoupling capacitor required within 10 mm for stable switching performance. |
| 3–10 (A0–A7) | Data inputs | Non-inverting buffered inputs; Schmitt-triggered for noise rejection on noisy automotive harnesses. |
| 11–18 (Y0–Y7) | Data outputs | 3-state outputs grouped as Y0–Y3 (OE0-controlled) and Y4–Y7 (OE1-controlled); symmetric rise/fall times. |
| 19 (OE1) | Active-low output enable 1 | Controls Y4–Y7 outputs; allows independent gating of upper/lower nibbles for multiplexed bus architectures. |
| 20 (GND) | Ground reference | 0 V return path; must be low-inductance connection to minimize ground bounce during simultaneous output switching. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C ambient, including temperature cycling, HTOL, and ESD stress. |
| Dual independent 3-state control | OE0 and OE1 allow hardware-level partitioning of Y0–Y3 and Y4–Y7 into separate isolated bus segments. |
| Overvoltage-tolerant inputs | All A0–A7 accept up to 5.5 V regardless of VCC - eliminates need for external level-shifting components in mixed-voltage systems. |
| Low dynamic power dissipation | CPD = 12 pF per buffer - enables efficient operation at 10+ MHz clock rates without excessive self-heating in sealed ECUs. |
| High noise immunity | Schmitt-trigger inputs with hysteresis ≥0.4 V - rejects common-mode noise and contact bounce in switch-sensed body electronics. |
Applications
| Body Control Module (BCM) | Instrument Cluster Interface |
|---|---|
|
Use Scenario: Routing discrete switch inputs (door lock, window up/down, mirror fold) to a central microcontroller while isolating fault currents. IC Role / Device Role / Timing Role: Octal buffer with dual OE control acts as electrically isolated signal conditioner and bus gate between mechanical switches and MCU GPIOs. Use Value: Prevents single-point failure propagation; enables hot-swap diagnostics via independent OE0/OE1 toggling without resetting entire cluster. |
Use Scenario: Interfacing multiple SPI-based display drivers and backlight controllers to a shared MCU SPI bus with timing-critical refresh cycles. IC Role / Device Role / Timing Role: 3-state buffer isolates SPI MISO/MOSI lines during multi-peripheral contention, reducing capacitive loading and skew. Use Value: Enables deterministic 5.5 ns propagation delay and <10 ns enable/disable timing - critical for maintaining 10+ MHz SPI frame integrity. |
| ADAS Camera Sensor Hub | Powertrain Gateway Arbitration |
|
Use Scenario: Aggregating parallel status signals (focus OK, exposure locked, lens error) from multiple camera modules into a centralized diagnostic bus. IC Role / Device Role / Timing Role: Level-translating buffer converts 3.3 V camera logic to 5 V diagnostic bus voltage while providing fault-isolated 3-state drive. Use Value: 5.5 V overvoltage tolerance prevents latch-up when camera modules power-cycle asynchronously relative to hub supply. |
Use Scenario: Isolating CAN FD transceiver TX/RX lines from MCU GPIOs during firmware updates or bootloader transitions to prevent bus corruption. IC Role / Device Role / Timing Role: Dual-OE buffer gates CAN TX/RX paths independently, ensuring clean bus release before reconfiguration. Use Value: Sub-10 ns disable time (tdis) guarantees <100 ns bus quiescence - meets ISO 11898-1 arbitration recovery timing requirements. |
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-Q100 | TSSOP20 package (4.4 mm width), 0.65 mm pitch - smaller footprint but lower thermal mass and no side-wettable flanks. | Better suited for space-constrained PCBs; less suitable for manual rework or AOI inspection in production. | Select when board area is constrained and automated optical inspection is not required. |
| SN74AHCT541QPWRQ1 | Texas Instruments variant; identical logic function and AEC-Q100 Grade 1 rating, but different ESD specs (HBM >4000 V) and wider VCC range (4.5–5.5 V same). | Higher HBM ESD rating supports harsher handling environments; pinout identical but thermal pad layout differs. | Prefer when system-level ESD testing exceeds 2 kV or TI supply-chain continuity is mandated. |
Compared with 74AHCT541PW-Q100, the D-package offers superior thermal dissipation and AOI support; compared with SN74AHCT541QPWRQ1, the Nexperia part provides tighter propagation delay consistency (±0.5 ns typical variation) and lower input leakage (<0.1 μA at 25 °C), improving reliability in low-power always-on nodes.
Availability
74AHCT541D-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, ADAS sensor hubs, and powertrain gateway arbitration requiring stable component supply across extended temperature ranges and AEC-Q100 compliance.
Supply support for 74AHCT541D-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 technologies, delivering high-performance logic, analog, and MOSFET solutions optimized for automotive, industrial, and mobile applications.
The 74AHCT541-Q100 series belongs to Nexperia's automotive-qualified logic portfolio, designed specifically for robust signal conditioning and bus isolation in safety-critical vehicle subsystems operating across extreme ambient temperatures.
FAQ
Is 74AHCT541D-Q100 pin-compatible with 74AHC541D-Q100?
Yes - both share identical pinout, package (SO20), and functional behavior. The key difference is input threshold: 74AHCT541D-Q100 accepts TTL-level inputs (VIH = 2.0 V min), while 74AHC541D-Q100 requires CMOS-level inputs (VIH = 3.85 V at VCC = 5.5 V). Swapping requires verifying source driver compatibility.
What is the maximum recommended output load capacitance?
The datasheet specifies dynamic characteristics up to 50 pF (CL), with propagation delay increasing from 5.5 ns (CL = 15 pF) to 9.0 ns (CL = 50 pF) at VCC = 5.0 V. For reliable timing closure beyond 50 pF, derate delay by ~0.1 ns/pF and verify with IBIS simulation or bench measurement.
Can OE0 and OE1 be tied together?
Yes - connecting OE0 and OE1 simplifies control to a single 3-state enable signal, converting the device into a standard 8-bit buffer. This reduces GPIO usage but eliminates independent control of Y0–Y3 vs. Y4–Y7, limiting flexibility in segmented bus architectures.
Does the SO20 package support lead-free reflow profiles?
Yes - the SOT163-1 package is qualified for standard JEDEC J-STD-020D lead-free reflow, with peak temperature up to 260 °C for 30 seconds. Thermal profile must maintain ramp rate ≤3 °C/s and avoid exceeding 260 °C for more than 60 seconds to prevent delamination.
74AHCT541D-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- 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:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 8mA, 8mA
- 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
74AHCT541D-Q100J FAQ
1.How can I place an order for 74AHCT541D-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT541D-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 74AHCT541D-Q100J reliable?
The price and inventory of 74AHCT541D-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT541D-Q100J is usually 5 days.
3.What payment methods are accepted for 74AHCT541D-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT541D-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT541D-Q100J?
74AHCT541D-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT541D-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 74AHCT541D-Q100J?
For technical support, including 74AHCT541D-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT541D-Q100J requirements.
6.How does Aetrix verify that 74AHCT541D-Q100J is sourced from the original manufacturer or authorized distributors?
All 74AHCT541D-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 74AHCT541D-Q100J meets industry standards.
7.What is the process for return or replacement of 74AHCT541D-Q100J?
All 74AHCT541D-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT541D-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 74AHCT541D-Q100J part is unused and in its original packaging.
Return procedure for 74AHCT541D-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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