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Nexperia USA Inc. 74AHCT126D-Q100,11
- Part No.:
- 74AHCT126D-Q100,11
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74AHCT126D-Q100,11.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,936
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Product details
Overview
74AHCT126D-Q100,11 from Nexperia is an automotive-qualified quad buffer/line driver with 3-state outputs, TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), ±8 mA output drive, and operation from −40 °C to +125 °C. It enables bidirectional bus isolation in automotive body control modules and infotainment interconnects.
For engineers reviewing the 74AHCT126D-Q100,11 datasheet, 74AHCT126D-Q100,11 pinout, 74AHCT126D-Q100,11 application, or 74AHCT126D-Q100,11 equivalent, key selection criteria include TTL-level input compatibility, 3-state enable timing (ten ≤ 9.0 ns, tdis ≤ 11.5 ns at VCC = 5 V, CL = 50 pF), SO14 package mechanical fit, and AEC-Q100 Grade 1 qualification for under-hood use.
Technical Context
This device implements four independent non-inverting buffers, each with a dedicated active-HIGH output enable (nOE) controlling high-impedance state entry/exit. Input Schmitt-trigger action ensures noise immunity on slow-rising signals, while overvoltage-tolerant inputs (up to 7.0 V) support mixed-voltage translation between 3.3 V and 5 V domains.
Dynamic performance is specified across temperature and voltage: propagation delay tpd ≤ 7.5 ns (VCC = 5 V, CL = 50 pF), enable time ten ≤ 9.0 ns, and disable time tdis ≤ 11.5 ns - all guaranteed over −40 °C to +125 °C. Static parameters include VIH = 2.0 V (min), VOL = 0.55 V (max at IO = 8 mA), and ICC ≤ 40 μA (max at VCC = 5.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | AHCT - TTL-compatible input thresholds ensure reliable interfacing with legacy 5 V microcontrollers and FPGAs. |
| Supply Voltage Range | 4.5 V to 5.5 V - Matches standard 5 V automotive power rails; excludes 3.3 V operation unlike AHC variant. |
| Output Drive | ±8 mA - Sufficient to drive 50 pF loads with <9.5 ns propagation delay, supporting medium-speed bus buffering. |
| Temperature Range | −40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for engine bay and transmission control unit deployment. |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - Enables direct connection to 5 V CMOS and TTL logic without level shifters. |
| 3-State Enable Polarity | Active HIGH (nOE) - Simplifies control logic when enabled by microcontroller GPIOs without inversion. |
| ESD Rating | HBM >2000 V, CDM >1000 V - Robust handling during PCB assembly and in-vehicle ESD events. |
Pinout & Package
74AHCT126D-Q100,11 uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, and gull-wing leads compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | nOE (output enable) | Active-HIGH control per buffer channel; drives corresponding output into high-Z when LOW. |
| 2, 5, 9, 12 | nA (data input) | Non-inverting input for each of four buffer channels; accepts TTL/CMOS levels up to 7.0 V. |
| 3, 6, 8, 11 | nY (data output) | Buffered non-inverting output; supports ±8 mA drive and 50 pF load at <9.5 ns delay. |
| 7 | GND | Ground reference (0 V); must be low-impedance for stable noise margin and switching integrity. |
| 14 | VCC | Positive supply (4.5–5.5 V); decoupling capacitor (100 nF) 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 humidity testing. |
| TTL-compatible input thresholds | VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 5 V - eliminates need for external level translators with legacy 5 V logic. |
| Overvoltage-tolerant inputs | Withstands up to 7.0 V regardless of VCC - enables safe interfacing with higher-voltage subsystems (e.g., sensor interfaces). |
| Schmitt-trigger inputs | Hysteresis >0.3 V typical - rejects noise on slow or noisy signal lines (e.g., switch debouncing, LIN bus stubs). |
| SO14 package with side-wettable flanks | Enables automated optical inspection (AOI) of solder joints - improves manufacturing yield in automotive PCBA lines. |
Applications
| Body Control Module (BCM) | Instrument Cluster Interface |
|---|---|
Use Scenario: Isolating CAN/LIN transceiver data lines from microcontroller GPIOs during sleep mode to reduce leakage current. IC Role / Device Role / Timing Role: Quad 3-state buffer enabling selective bus disconnection; nOE controlled by MCU wake-up interrupt. Use Value: Reduces system standby current by >15 μA per isolated line while maintaining fast (<10 ns) re-enable timing for responsive wake-up. |
Use Scenario: Driving multiplexed LED backlight segments from a 5 V MCU in a digital instrument cluster. IC Role / Device Role / Timing Role: Level-shifting and current-boosting buffer between MCU GPIO and LED driver IC inputs. Use Value: Ensures clean 5 V logic transitions despite trace capacitance (>30 pF), eliminating ghost illumination during PWM dimming. |
| Rear Occupancy Detection System | Power Seat Control Unit |
Use Scenario: Buffering ultrasonic sensor echo signals before ADC sampling in rear seat detection modules. IC Role / Device Role / Timing Role: Signal conditioning buffer with Schmitt-trigger inputs rejecting EMI from adjacent motor drivers. Use Value: Improves echo pulse edge definition, reducing false occupancy detection caused by 20–50 mV noise spikes. |
Use Scenario: Interfacing seat position encoder quadrature outputs to a 5 V safety MCU in ASIL-B compliant systems. IC Role / Device Role / Timing Role: Noise-immune signal repeater with guaranteed timing margins for fault-detection window validation. Use Value: Maintains <10 ns skew between A/B channels under EMC stress, satisfying ISO 26262 timing constraint requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHCT126PW-Q100 | TSSOP14 package (4.4 mm width); 7.3 mW/K power derating above 81 °C | Higher board density but lower thermal mass; less suitable for high-ambient under-hood locations | Select when PCB space is constrained and ambient temperature remains ≤85 °C. |
| SN74AHCT126QPWRQ1 | Texas Instruments part; identical AHCT logic, but VIL = 0.5 V max (vs. 0.8 V), tighter VOH/VOL specs | Marginally better noise immunity at low VIL, but requires verification of source driver compatibility | Prefer only if existing TI-based BOM mandates cross-supplier consistency and layout allows TSSOP footprint. |
Compared with 74AHCT126D-Q100,11, the PW variant trades thermal robustness for compactness, while the TI alternative offers tighter DC specs at the cost of reduced input noise margin - making the SO14 Nexperia part optimal for cost-sensitive, thermally demanding automotive harness interfaces.
Availability
74AHCT126D-Q100,11 is available at Aetrix Electronics and suitable for automotive body electronics, instrument cluster interconnects, and power seat control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AHCT126D-Q100,11 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, reliable discrete, logic, and MOSFET devices optimized for automotive, industrial, and consumer applications.
The 74AHCT series targets automotive-grade logic interfacing, emphasizing AEC-Q100 compliance, wide temperature operation, and robust ESD tolerance for harsh vehicle environments.
FAQ
Is 74AHCT126D-Q100,11 pin-compatible with standard 74HC126 or 74LS126?
Yes - it shares identical SO14 pinout (SOT108-1) and functional mapping with 74HC126 and 74LS126, including 1OE–1Y, 2OE–2Y, 3OE–3Y, and 4OE–4Y channel ordering. However, input thresholds differ: AHCT matches TTL (VIH = 2.0 V), while HC requires CMOS-level inputs (VIH ≈ 3.5 V at 5 V), so direct substitution requires verifying source logic family compatibility.
Can 74AHCT126D-Q100,11 operate at 3.3 V supply?
No - the 74AHCT variant is specified only for 4.5 V to 5.5 V supply. At 3.3 V, input thresholds become undefined and output drive degrades significantly. For 3.3 V systems, use the 74AHC126D-Q100 variant instead, which supports 2.0 V to 5.5 V and has CMOS-compatible inputs.
What is the maximum capacitive load this device can drive reliably?
It is characterized up to 50 pF (per output) with guaranteed timing: tpd ≤ 7.5 ns and tdis ≤ 11.5 ns at VCC = 5 V. Driving >50 pF increases propagation delay nonlinearly and may cause ringing; for >60 pF loads, add series termination (22–47 Ω) near the driver output to maintain signal integrity.
Does the SO14 package support automatic optical inspection (AOI)?
Yes - the SO14 variant (SOT108-1) used in 74AHCT126D-Q100,11 features side-wettable flanks, allowing AOI systems to inspect solder joint quality on both top and side surfaces of gull-wing leads - a requirement for automotive PCBA process validation per IATF 16949.
74AHCT126D-Q100,11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 1
- 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:
- 14-SO
74AHCT126D-Q100,11 FAQ
1.How can I place an order for 74AHCT126D-Q100,11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT126D-Q100,11 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 74AHCT126D-Q100,11 reliable?
The price and inventory of 74AHCT126D-Q100,11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT126D-Q100,11 is usually 5 days.
3.What payment methods are accepted for 74AHCT126D-Q100,11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT126D-Q100,11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT126D-Q100,11?
74AHCT126D-Q100,11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT126D-Q100,11 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 74AHCT126D-Q100,11?
For technical support, including 74AHCT126D-Q100,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT126D-Q100,11 requirements.
6.How does Aetrix verify that 74AHCT126D-Q100,11 is sourced from the original manufacturer or authorized distributors?
All 74AHCT126D-Q100,11 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 74AHCT126D-Q100,11 meets industry standards.
7.What is the process for return or replacement of 74AHCT126D-Q100,11?
All 74AHCT126D-Q100,11 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT126D-Q100,11, 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 74AHCT126D-Q100,11 part is unused and in its original packaging.
Return procedure for 74AHCT126D-Q100,11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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