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Nexperia USA Inc. 74HC126PW-Q100J
- Part No.:
- 74HC126PW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC126PW-Q100J.pdf
- Description:
- IC BUFFER NON-INVERT 6V 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,816
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Product details
Overview
74HC126PW-Q100 from Nexperia is an automotive-qualified quad 3-state buffer/line driver with CMOS input levels, operating from 2.0 V to 6.0 V supply, supporting -40 °C to +125 °C ambient range, and delivering propagation delay as low as 9 ns at VCC = 6.0 V (CL = 50 pF), used for bidirectional bus interfacing in engine control units and body electronics.
For engineers reviewing the 74HC126PW-Q100 datasheet, 74HC126PW-Q100 pinout, 74HC126PW-Q100 application, or 74HC126PW-Q100 equivalent, key selection criteria include 3-state enable timing (ten/tdis ≤ 32 ns), high-impedance leakage (IOZ ≤ ±10 μA), AEC-Q100 Grade 1 qualification, and TSSOP14 thermal derating (7.3 mW/K above 81 °C).
Technical Context
This device implements four independent non-inverting buffers, each with active-HIGH output enable (nOE) controlling high-impedance OFF-state. Input clamp diodes allow safe interfacing to voltages 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 inputs only in the 74HCT variant, and exhibits latch-up immunity >100 mA per JESD78 Class II Level B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.0 V to 6.0 V - enables direct interface with 3.3 V and 5 V logic domains without level shifters |
| Propagation delay (tpd) | 9 ns (typ) at VCC = 6.0 V, CL = 50 pF - ensures sub-10 ns signal routing for high-speed bus buffering |
| Enable/disable time (ten/tdis) | 12 ns (typ) at VCC = 6.0 V - guarantees fast bus arbitration and contention avoidance in multiplexed systems |
| Output drive strength | ±6.0 mA at VCC = 4.5 V - sufficient to drive 50 pF loads across automotive temperature range |
| Input leakage (II) | ±0.1 μA (typ) at VCC = 6.0 V - minimizes standby current in always-on vehicle modules |
| Off-state output current (IOZ) | ±0.5 μA (typ) at VCC = 6.0 V - maintains clean bus isolation during tri-state operation |
| Power dissipation capacitance (CPD) | 23 pF - enables accurate dynamic power estimation (PD = CPD × VCC² × fi × N) |
Pinout & Package
TSSOP14 plastic thin shrink small outline package (SOT402-1), 14-lead, body width 4.4 mm, 0.65 mm lead pitch, optimized for high-density automotive PCB layouts with improved thermal performance over SO14 (derates 7.3 mW/K above 81 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | nOE (output enable) | Active-HIGH control per buffer; LOW forces corresponding Y output into high-impedance state |
| 2, 5, 9, 12 | nA (data input) | CMOS-level input accepting 0–VCC swing; includes clamp diodes for overvoltage tolerance |
| 3, 6, 8, 11 | nY (data output) | Non-inverting buffered output with 3-state capability; drives bus or downstream logic |
| 7 | GND | Reference ground (0 V); must be low-impedance connection to minimize switching noise |
| 14 | VCC | Primary supply rail; requires local 100 nF ceramic decoupling adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for -40 °C to +125 °C operation in safety-critical automotive ECUs and ADAS subsystems |
| Wide VCC range (2.0–6.0 V) | Eliminates need for separate voltage translators when interfacing mixed-supply subsystems (e.g., 3.3 V MCU to 5 V sensor bus) |
| Input clamp diodes | Enables robust 12 V tolerant input protection using external series resistors - critical for LIN/CAN node I/O conditioning |
| Low ICC (8.0 μA typ) | Reduces quiescent current in always-on vehicle networks (e.g., door module wake-up circuits) |
| High noise immunity | VIH/VIL margins exceed 30% of VCC across full temperature range - suppresses EMI-induced glitches in under-hood environments |
Applications
| Engine Control Unit (ECU) Bus Interface | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Isolating diagnostic CAN transceiver data lines from microcontroller GPIO during firmware updates. IC Role / Device Role / Timing Role: Bidirectional 3-state buffer enabling hot-swap-safe bus access while preventing back-driving during MCU reset. Use Value: Enables concurrent CAN communication and flash programming without hardware redesign or bus contention risk. |
Use Scenario: Driving multiplexed LED status indicators and relay drivers from a single 3.3 V microcontroller in door modules. IC Role / Device Role / Timing Role: Voltage-level translating buffer with 5 V-tolerant outputs driving discrete loads. Use Value: Eliminates need for discrete level-shifting transistors and reduces BOM count by 4× per module. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Infotainment System Display Interface |
|
Use Scenario: Buffering camera sensor parallel data lanes (e.g., MIPI D-PHY clock/data pairs) before FPGA capture. IC Role / Device Role / Timing Role: Low-skew, low-jitter signal repeater preserving setup/hold timing margins across PCB traces. Use Value: Maintains <10 ns inter-lane skew across all four channels, ensuring reliable image frame synchronization. |
Use Scenario: Isolating LVDS display timing controller outputs from panel-side ESD events in center-stack displays. IC Role / Device Role / Timing Role: High-impedance guard buffer absorbing transient energy while maintaining signal integrity. Use Value: Prevents display flicker or blackouts during electrostatic discharge events without sacrificing pixel clock fidelity. |
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 |
|---|---|---|---|
| 74HCT126PW-Q100 | TTL-compatible inputs (VIH = 2.0 V min), identical pinout and timing | Better suited for legacy 5 V TTL logic interfacing; higher input current draw vs. HC version | Select when driving from 5 V microcontrollers or legacy peripherals with TTL output thresholds |
| SN74LVC126APWR | 3.3 V only (1.65–3.6 V), lower VCC max, higher speed (tpd = 4.2 ns @ 3.3 V) | Not qualified to AEC-Q100; limited to non-safety-critical infotainment subsystems | Choose for cost-sensitive, non-automotive designs requiring faster propagation but no automotive qualification |
Compared with 74HC126PW-Q100, the 74HCT126PW-Q100 offers seamless integration with 5 V TTL sources but increases static power consumption, while the SN74LVC126APWR delivers superior speed at 3.3 V yet lacks automotive qualification and wide-VCC flexibility.
Availability
74HC126PW-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS sensor hubs, and infotainment display interfaces requiring stable component supply across extended automotive temperature ranges.
Supply support for 74HC126PW-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, with leadership in automotive-grade standard products.
The 74HC126-Q100 belongs to Nexperia's automotive logic portfolio, designed specifically for robust signal buffering and bus isolation in harsh-temperature vehicle subsystems where AEC-Q100 compliance and long-term supply stability are mandatory.
FAQ
What is the maximum allowable supply voltage for continuous operation?
The absolute maximum supply voltage (VCC) is +7.0 V, but recommended continuous operation is limited to 2.0–6.0 V per JEDEC JESD7A. Exceeding 6.0 V risks accelerated parametric drift and reduced lifetime, especially at elevated temperatures. Operation at 7.0 V is permitted only for transient conditions not exceeding 200 ms.
Can this device drive a 50 Ω transmission line directly?
No - the 74HC126PW-Q100 is not designed for 50 Ω line driving. Its typical output impedance is ~50 Ω only near rail transitions, and sustained 50 Ω loading exceeds its ±35 mA absolute maximum output current rating. For controlled-impedance traces, use external series termination (e.g., 33 Ω resistor) or dedicated line drivers.
How does the input clamp diode affect system-level ESD protection design?
The internal clamp diodes provide basic protection up to ±20 mA (per JESD7A), but they are not substitutes for external TVS devices. When interfacing to pins exposed to ISO 10605 or IEC 61000-4-2 ESD events, external 100 Ω current-limiting resistors plus a 15 kV-rated TVS diode remain mandatory to prevent latch-up or permanent damage.
Is there any functional difference between the SO14 (74HC126D-Q100) and TSSOP14 (74HC126PW-Q100) packages?
No functional difference exists - both share identical electrical specifications, timing, and logic behavior. The TSSOP14 (SOT402-1) offers smaller footprint and better thermal resistance (7.3 mW/K derating above 81 °C) versus SO14 (10.1 mW/K above 100 °C), making it preferable for space-constrained, thermally demanding automotive modules.
74HC126PW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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-TSSOP
74HC126PW-Q100J FAQ
1.How can I place an order for 74HC126PW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC126PW-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 74HC126PW-Q100J reliable?
The price and inventory of 74HC126PW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC126PW-Q100J is usually 5 days.
3.What payment methods are accepted for 74HC126PW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC126PW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC126PW-Q100J?
74HC126PW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC126PW-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 74HC126PW-Q100J?
For technical support, including 74HC126PW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC126PW-Q100J requirements.
6.How does Aetrix verify that 74HC126PW-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HC126PW-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 74HC126PW-Q100J meets industry standards.
7.What is the process for return or replacement of 74HC126PW-Q100J?
All 74HC126PW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HC126PW-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 74HC126PW-Q100J part is unused and in its original packaging.
Return procedure for 74HC126PW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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