My Inquiry
My Account
Nexperia USA Inc. 74HC126D-Q100J
- Part No.:
- 74HC126D-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC126D-Q100J.pdf
- Description:
- IC BUFFER NON-INVERT 6V 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,459
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74HC126D-Q100 from Nexperia is an automotive-qualified quad buffer/line driver with 3-state outputs, designed for bidirectional bus interfacing and signal isolation in harsh environments. It operates across 2.0 V to 6.0 V supply, supports -40 °C to +125 °C ambient range, features CMOS input levels, and delivers propagation delay as low as 9 ns at VCC = 6.0 V - used in engine control unit (ECU) I/O expansion and CAN subsystem signal conditioning.
For engineers reviewing the 74HC126D-Q100 datasheet, 74HC126D-Q100 pinout, 74HC126D-Q100 application, or 74HC126D-Q100 equivalent, key selection criteria include 3-state enable timing (ten/tdis ≤ 32 ns), AEC-Q100 Grade 1 qualification, SO14 package thermal derating (10.1 mW/K above 100 °C), and input clamp diode support for overvoltage-tolerant interfacing.
Technical Context
This device implements four independent non-inverting buffers, each with dedicated active-HIGH output enable (nOE) controlling high-impedance OFF-state. Input clamp diodes allow safe interface to signals exceeding VCC when used with current-limiting resistors.
It complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V), supports TTL-level compatibility via the pin-compatible 74HCT126 variant, and meets AEC-Q100 Grade 1 requirements for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - enables direct integration with 3.3 V and 5 V automotive subsystems without level-shifting. |
| Operating Temperature | -40 °C to +125 °C - qualified for engine bay and transmission control module deployment. |
| Propagation Delay | 9 ns (typ.) at VCC = 6.0 V, CL = 50 pF - ensures timing-critical bus buffering in real-time control loops. |
| Output Drive Strength | ±6.0 mA at VCC = 4.5 V - sufficient to drive standard CMOS loads and short PCB traces. |
| Input Clamp Current | ±20 mA - permits robust interfacing to external sensors or legacy modules operating above VCC. |
| Power Dissipation Cap | 500 mW (Tamb ≤ 100 °C, SO14) - defines maximum continuous power before thermal derating applies. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - exceeds automotive ESD immunity requirements per ISO 10605. |
Pinout & Package
74HC126D-Q100 uses the SO14 (SOT108-1) plastic small outline package: 14-lead, 3.9 mm body width, 1.27 mm lead pitch, with gull-wing leads suitable for reflow soldering and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | nOE (1OE–4OE) | Active-HIGH output enable inputs - each controls one buffer's 3-state output independently. |
| 2, 5, 9, 12 | nA (1A–4A) | Buffer input terminals - accept CMOS-level signals; internal clamp diodes protect against overvoltage. |
| 3, 6, 8, 11 | nY (1Y–4Y) | Non-inverting buffered outputs - enter high-impedance state when corresponding nOE = LOW. |
| 7 | GND | Ground reference (0 V) - must be low-inductance connection to minimize switching noise coupling. |
| 14 | VCC | Positive supply rail - 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 temperature cycling and humidity testing. |
| Input clamp diodes | Enable safe interface to voltages up to VCC + 0.5 V using external current-limiting resistors - eliminates need for discrete protection. |
| CMOS input thresholds | VIH = 3.15 V (min) at VCC = 4.5 V - ensures reliable logic recognition from 3.3 V microcontrollers and sensors. |
| Low dynamic power | CPD = 23 pF - limits switching power dissipation in high-frequency bus applications (e.g., SPI clock distribution). |
| High noise immunity | Typical noise margin > 1.3 V at VCC = 4.5 V - suppresses false triggering in electrically noisy engine compartments. |
Applications
| Engine Control Unit (ECU) I/O Expansion | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Expanding GPIO count of a 32-bit MCU to manage solenoid drivers, sensor inputs, and diagnostic LEDs. IC Role / Device Role / Timing Role: Bidirectional bus buffer isolating MCU pins from high-current loads while enabling shared data lines. Use Value: Prevents MCU pin damage during load transients and allows hot-swap-safe peripheral addition without redesigning PCB routing. |
Use Scenario: Interfacing LIN transceivers and door lock actuators to a central BCM microcontroller. IC Role / Device Role / Timing Role: Signal-level translator and driver with 3-state control for time-multiplexed bus arbitration. Use Value: Enables single MCU port to serve multiple LIN nodes and actuators, reducing BOM count and PCB layer count. |
| Instrument Cluster Display Interface | ADAS Camera Power Sequencing |
Use Scenario: Driving parallel RGB data lines from an SoC to a TFT display controller with precise timing alignment. IC Role / Device Role / Timing Role: Low-skew, matched-delay buffer ensuring simultaneous pixel data delivery across 16-bit bus. Use Value: Eliminates inter-lane skew-induced color artifacts and supports 60 Hz refresh without frame tearing. |
Use Scenario: Controlling power-up sequencing of image sensor, ISP, and serializer ICs in a surround-view camera system. IC Role / Device Role / Timing Role: Enable-controlled signal gate coordinating reset and clock enable signals across voltage domains. Use Value: Guarantees strict power-on order (sensor → ISP → serializer) to prevent latch-up and initialization failures. |
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 |
|---|---|---|---|
| 74HCT126D-Q100 | TTL-compatible inputs (VIH = 2.0 V min at VCC = 4.5 V); identical pinout and timing. | Better suited for mixed-logic systems with 5 V TTL peripherals; slightly higher ICC at VCC = 5.5 V. | Select when interfacing legacy 5 V controllers or industrial PLC I/O cards requiring TTL thresholds. |
| SN74LVC126AQPWRQ1 | Lower VCC range (1.65–3.6 V), smaller TSSOP14 package, 32 mA drive strength. | Optimized for 3.3 V ADAS domain controllers; not rated for 125 °C operation. | Choose for space-constrained 3.3 V designs where extended temperature range is not required. |
Compared with 74HC126D-Q100, the 74HCT126D-Q100 offers broader legacy compatibility but less noise margin, while the SN74LVC126AQPWRQ1 reduces footprint and power at the cost of automotive high-temp support - making the HC variant optimal for new 5 V or dual-supply ECU designs demanding full Grade 1 coverage.
Availability
74HC126D-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, and instrument cluster interfaces requiring stable component supply across automotive production lifecycles.
Supply support for 74HC126D-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 specializing in high-performance, high-reliability logic, analog, and discrete components for automotive, industrial, and consumer markets.
The 74HC126-Q100 belongs to Nexperia's automotive logic portfolio, engineered specifically to meet AEC-Q100 Grade 1 requirements for under-hood signal integrity and long-term reliability.
FAQ
What is the maximum allowable input voltage relative to VCC?
The 74HC126D-Q100 includes internal input clamp diodes that permit VI up to VCC + 0.5 V, provided input current is limited to ±20 mA per pin using external series resistors - a key feature enabling safe interfacing with higher-voltage sensors or legacy modules without additional protection circuitry.
Can this device drive a 50 pF load at 10 MHz without signal degradation?
Yes - with CPD = 23 pF and typical propagation delay of 11 ns at VCC = 4.5 V, CL = 50 pF, the device maintains clean edges and <1 ns skew across all four channels, supporting reliable 10 MHz bus operation in automotive infotainment and gateway applications.
Is the SO14 package compatible with standard reflow profiles for lead-free assembly?
Yes - the SOT108-1 (SO14) package is qualified for IPC/JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260 °C for 30 seconds, and exhibits no warpage or delamination when processed per Nexperia's recommended thermal profile for automotive-grade assemblies.
How does the 3-state enable timing affect bus arbitration in multi-master systems?
With enable/disable times (ten/tdis) of 12–32 ns across VCC and temperature, the 74HC126D-Q100 ensures rapid bus release and acquisition - critical for deterministic arbitration in LIN or custom serial buses where master handoff must occur within sub-microsecond windows to avoid collision or timeout faults.
74HC126D-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- 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:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74HC126D-Q100J FAQ
1.How can I place an order for 74HC126D-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC126D-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 74HC126D-Q100J reliable?
The price and inventory of 74HC126D-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC126D-Q100J is usually 5 days.
3.What payment methods are accepted for 74HC126D-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC126D-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC126D-Q100J?
74HC126D-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC126D-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 74HC126D-Q100J?
For technical support, including 74HC126D-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC126D-Q100J requirements.
6.How does Aetrix verify that 74HC126D-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HC126D-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 74HC126D-Q100J meets industry standards.
7.What is the process for return or replacement of 74HC126D-Q100J?
All 74HC126D-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HC126D-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 74HC126D-Q100J part is unused and in its original packaging.
Return procedure for 74HC126D-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC126D-Q100J Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
