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Nexperia USA Inc. 74VHCT126PW-Q100J
- Part No.:
- 74VHCT126PW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74VHCT126PW-Q100J.pdf
- Description:
- IC BUF NON-INVERT 5.5V 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,678
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Product details
Overview
74VHCT126PW-Q100 from Nexperia is an automotive-qualified quad non-inverting 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 serves as a level-shifting bus interface in automotive body control modules, enabling isolated signal routing between microcontrollers and peripheral drivers.
For engineers reviewing the 74VHCT126PW-Q100 datasheet, 74VHCT126PW-Q100 pinout, 74VHCT126PW-Q100 application, or 74VHCT126PW-Q100 equivalent, key selection criteria include TTL-level compatibility, AEC-Q100 Grade 1 qualification, 3-state bus contention control, and TSSOP14 package suitability for high-density automotive PCB layouts.
Technical Context
This device implements four independent non-inverting buffers, each with an active-HIGH output enable (nOE) controlling high-impedance OFF-state on the corresponding nY output. Input logic levels conform to TTL thresholds, ensuring interoperability with legacy 5 V LSTTL systems while operating on a 4.5–5.5 V supply.
Propagation delay is specified at 3.0–5.5 ns (VCC = 4.5–5.5 V, CL = 15 pF), with enable/disable times under 7 ns. All inputs feature Schmitt-trigger action and tolerate voltages up to 7.0 V, supporting mixed-voltage domain interfacing without external clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad non-inverting buffer with 3-state outputs; enables bidirectional bus isolation via per-channel OE control. |
| Input Compatibility | TTL-level (VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V); ensures drop-in replacement for LSTTL drivers. |
| Output Drive | ±8 mA at VCC = 4.5 V; sufficient to drive 50 pF loads with <9.5 ns propagation delay across full temperature range. |
| Operating Range | −40 °C to +125 °C ambient; qualified per AEC-Q100 Grade 1 for engine bay and powertrain ECUs. |
| Supply Voltage | 4.5 V to 5.5 V; rejects ripple and brownout in automotive 5 V rails without regulation overhead. |
| ESD Robustness | HBM >2000 V, CDM >1000 V; withstands handling and assembly stress in automotive manufacturing lines. |
Pinout & Package
TSSOP14 plastic thin shrink small outline package (SOT402-1), 14-lead, body width 4.4 mm, lead pitch 0.65 mm, exposed pad optional - optimized for automated optical inspection (AOI) and thermal performance in space-constrained automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 (1OE–4OE) | Output enable input | Active-HIGH control per channel; drives corresponding nY into high-Z when LOW, enabling multi-driver bus arbitration. |
| 2, 5, 9, 12 (1A–4A) | Data input | TTL-compatible inputs with Schmitt-trigger hysteresis; accept 0–5.5 V signals and tolerate overvoltage up to 7.0 V. |
| 3, 6, 8, 11 (1Y–4Y) | Data output | CMOS push-pull outputs with ±8 mA drive; support hot-swap bus insertion and low-noise switching in shared data paths. |
| 7 | GND | Ground reference for all I/O and internal logic; requires low-inductance connection to minimize ground bounce in fast-switching operation. |
| 14 | VCC | Primary 4.5–5.5 V supply; decoupling capacitor (100 nF) recommended within 5 mm for stable noise margin and timing integrity. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40 °C to +125 °C operation with lifetime reliability testing per automotive standards. |
| TTL-input compatible interface | Eliminates level-shifter ICs when interfacing with legacy 5 V microcontrollers or sensors. |
| Input overvoltage tolerance | Accepts up to 7.0 V on any input pin regardless of VCC, enabling safe connection to higher-voltage subsystems. |
| Side-wettable flanks (SWF) | Enables automated optical inspection of solder joints on TSSOP14 package, improving automotive manufacturing yield. |
| Balanced propagation delays | Ensures matched timing across all four channels (<0.5 ns skew typical), critical for synchronous bus applications. |
Applications
| Body Control Module (BCM) | Instrument Cluster Interface |
|---|---|
Use Scenario: Isolating CAN/LIN transceiver control lines from MCU GPIOs during sleep/wake transitions. IC Role / Device Role / Timing Role: 3-state buffer enabling clean bus release and preventing backfeed during MCU reset sequences. Use Value: Eliminates need for discrete MOSFET switches; reduces BOM count and layout area while maintaining AEC-Q100 compliance. |
Use Scenario: Driving segmented LED backlight drivers from a low-drive-capability display controller. IC Role / Device Role / Timing Role: Level-shifting and current-boosting buffer between 3.3 V controller and 5 V LED driver inputs. Use Value: Provides TTL-compatible input threshold and 8 mA output drive, ensuring reliable turn-on of LED driver enable pins. |
| Power Distribution Unit (PDU) | ADAS Camera Power Sequencing |
Use Scenario: Controlling multiple solid-state relay (SSR) gate drivers in a centralized vehicle power node. IC Role / Device Role / Timing Role: Quad buffer with independent OE pins allows staggered activation of SSR banks to limit inrush current. Use Value: Enables precise sequencing without additional timing logic; supports diagnostic feedback via output monitoring. |
Use Scenario: Enabling camera sensor power rails and I²C pull-ups only after main SoC initialization completes. IC Role / Device Role / Timing Role: 3-state buffer isolates camera I²C lines during power-up to prevent bus contention with other peripherals. Use Value: Prevents I²C lockup during cold start; meets ISO 16750-2 pulse test requirements for voltage transients. |
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 |
|---|---|---|---|
| 74VHC126PW-Q100 | CMOS-input version (VIH = 3.85 V min at VCC = 5.5 V); lower ICC (2 μA typ), but incompatible with TTL logic sources. | Suitable only where upstream logic is CMOS or 3.3 V–5 V tolerant; not interchangeable with TTL-driven buses. | Select when system uses exclusively CMOS logic and ultra-low static current is prioritized over interface flexibility. |
| SN74LVC126APWR | 3.3 V only (1.65–3.6 V), LVCMOS input/output; 24 mA drive, but lacks AEC-Q100 qualification and automotive temp range. | Restricted to infotainment or ADAS sub-systems with separate 3.3 V rail and non-critical environmental rating. | Choose only for non-safety-critical 3.3 V domains where cost and speed outweigh automotive qualification needs. |
Compared with 74VHCT126PW-Q100, the 74VHC126PW-Q100 trades TTL compatibility for lower quiescent current and tighter VIH/VIL windows, while the SN74LVC126APWR offers higher drive strength at the expense of automotive qualification and voltage range - making the original part uniquely suited for robust 5 V automotive bus interfacing.
Availability
74VHCT126PW-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, and power distribution units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74VHCT126PW-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 discrete components for automotive, industrial, and consumer markets.
The 74VHCT126-Q100 series belongs to Nexperia's automotive-qualified logic portfolio, designed specifically to replace legacy LSTTL in harsh-environment vehicle systems while maintaining pin and functional compatibility.
FAQ
Is the 74VHCT126PW-Q100 pin-compatible with standard 74LS126 devices?
Yes - it is pin-compatible with Low-power Schottky TTL (LSTTL) 74LS126 and meets JEDEC standard No. 7-A. The TSSOP14 footprint matches SO14 pinout numbering, allowing direct PCB replacement in existing designs without layout changes.
Can this device operate reliably at 4.5 V supply with full 125 °C junction temperature?
Yes - the datasheet specifies guaranteed operation from −40 °C to +125 °C at VCC = 4.5–5.5 V. Propagation delay remains ≤9.5 ns and output drive sustains ≥7.0 V OH at 8 mA load under these conditions, validated per AEC-Q100 stress testing.
Does the TSSOP14 package support automated optical inspection (AOI) of solder joints?
Yes - the SOT402-1 package features side-wettable flanks (SWF), enabling reliable AOI of gull-wing solder fillets. This is explicitly cited in Nexperia's features list and confirmed in package drawing SOT402-1 revision notes.
What is the maximum input voltage the device tolerates when VCC = 0 V (unpowered)?
The absolute maximum input voltage is −0.5 V to +7.0 V regardless of VCC state. With VCC = 0 V, inputs remain protected up to +7.0 V due to integrated clamping diodes, supporting hot-plug and mixed-rail scenarios common in automotive diagnostics.
74VHCT126PW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74VHCT
- 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:
- 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-TSSOP
74VHCT126PW-Q100J FAQ
1.How can I place an order for 74VHCT126PW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VHCT126PW-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 74VHCT126PW-Q100J reliable?
The price and inventory of 74VHCT126PW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHCT126PW-Q100J is usually 5 days.
3.What payment methods are accepted for 74VHCT126PW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHCT126PW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74VHCT126PW-Q100J?
74VHCT126PW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VHCT126PW-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 74VHCT126PW-Q100J?
For technical support, including 74VHCT126PW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHCT126PW-Q100J requirements.
6.How does Aetrix verify that 74VHCT126PW-Q100J is sourced from the original manufacturer or authorized distributors?
All 74VHCT126PW-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 74VHCT126PW-Q100J meets industry standards.
7.What is the process for return or replacement of 74VHCT126PW-Q100J?
All 74VHCT126PW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74VHCT126PW-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 74VHCT126PW-Q100J part is unused and in its original packaging.
Return procedure for 74VHCT126PW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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