My Inquiry
My Account
Nexperia USA Inc. 74LVC126AD-Q100J
- Part No.:
- 74LVC126AD-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74LVC126AD-Q100J.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,498
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74LVC126AD-Q100 from Nexperia is an automotive-qualified quad buffer/line driver with 3-state outputs, 5 V tolerant I/O, and Schmitt-trigger inputs. It operates from 1.2 V to 3.6 V supply, supports mixed-voltage interfacing (3.3 V ↔ 5 V), and features IOFF partial power-down protection. Used in automotive body control modules for signal level translation between microcontrollers and legacy 5 V sensors.
For engineers reviewing the 74LVC126AD-Q100 datasheet, 74LVC126AD-Q100 pinout, 74LVC126AD-Q100 application, or 74LVC126AD-Q100 equivalent, key selection criteria include 5 V tolerance on all I/O pins, -40 °C to +125 °C operation, SO14 package compatibility, and AEC-Q100 Grade 1 qualification for under-hood electronics.
Technical Context
This device implements four independent non-inverting buffers, each with dedicated active-HIGH output enable (nOE) controlling high-impedance OFF-state. Schmitt-trigger inputs tolerate slow-rising signals common in automotive sensor interfaces, while IOFF circuitry blocks backflow current during partial power-down-critical for domain controller hot-swap scenarios.
It complies with JEDEC standards JESD8-7A (1.65–1.95 V), JESD8-5A (2.3–2.7 V), and JESD8-C/JESD36 (2.7–3.6 V), ensuring interoperability across voltage domains. Propagation delay is as low as 1.0 ns at VCC = 3.3 V, and output skew is guaranteed ≤1.5 ns, supporting synchronized multi-channel buffering in CAN/LIN gateway designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - Enables direct interface with 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| I/O Voltage Tolerance | 0 V to 5.5 V - Allows safe connection to 5 V peripherals (e.g., legacy sensors, displays) while powered from 3.3 V rails. |
| Operating Temperature | -40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for engine bay and transmission control unit deployment. |
| Propagation Delay (tpd) | 1.0 ns (min) to 6.0 ns (max) at VCC = 3.3 V - Supports high-speed digital signaling in real-time vehicle networks. |
| IOFF Leakage Current | ±10 μA max at VCC = 0 V - Prevents damaging back-current when one side of a bus is powered down during sleep mode. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Meets automotive ESD robustness requirements for assembly and field operation. |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - Sufficient to drive 50 pF loads over 10 cm PCB traces in distributed ECUs. |
Pinout & Package
74LVC126AD-Q100 uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads. Compatible with standard reflow profiles and AOI inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | nOE (Output Enable) | Active-HIGH control per buffer; drives corresponding output into high-Z state when LOW. |
| 2, 5, 9, 12 | nA (Data Input) | Non-inverting input with Schmitt-trigger threshold; accepts 0–5.5 V regardless of VCC. |
| 3, 6, 8, 11 | nY (Data Output) | 3-state buffered output; driven HIGH/LOW when nOE = HIGH, high-Z when nOE = LOW. |
| 7 | GND | Ground reference (0 V); must be connected to system ground plane for noise immunity. |
| 14 | VCC | Primary supply rail (1.2–3.6 V); decoupling capacitor (100 nF) required within 5 mm. |
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. |
| 5 V tolerant I/O | Inputs and outputs withstand up to 5.5 V regardless of VCC setting-enables seamless integration with legacy 5 V subsystems. |
| IOFF partial power-down | Automatically disables outputs and blocks reverse current flow when VCC = 0 V-essential for hot-plug and low-power sleep modes. |
| Schmitt-trigger inputs | Hysteresis ≥0.3 V at VCC = 3.3 V-rejects noise on long harness lines and tolerates slow edge rates from resistive sensors. |
| DHVQFN/SO14/TSSOP package options | SO14 (74LVC126AD-Q100) offers proven reliability and board-level testability; DHVQFN variant enables AOI via side-wettable flanks. |
Applications
| Body Control Module (BCM) | Instrument Cluster Interface |
|---|---|
Use Scenario: Translating GPIO signals from a 3.3 V MCU to 5 V dashboard backlight drivers and LED segment controllers. IC Role / Device Role / Timing Role: Quad buffer isolates MCU I/O from higher-voltage loads while maintaining timing integrity across four independent channels. Use Value: Eliminates need for discrete level-shifting components; Schmitt inputs suppress noise from PWM-driven LEDs; IOFF prevents backfeed during MCU reset sequences. |
Use Scenario: Interfacing a 1.8 V automotive SoC with 5 V analog-to-digital converter (ADC) supervisors and EEPROMs in cluster display subsystems. IC Role / Device Role / Timing Role: Level-translating buffer ensures clean signal propagation across voltage domains without timing skew exceeding 1.5 ns. Use Value: Reduces BOM count by replacing four discrete translators; 5 V tolerance avoids damage from transient overvoltage on shared sensor buses. |
| Power Distribution Unit (PDU) | Door Module Communication Hub |
Use Scenario: Driving multiple 5 V relay coil drivers and status LEDs from a 3.3 V domain controller in a 12 V vehicle electrical architecture. IC Role / Device Role / Timing Role: Line driver provides current gain and voltage translation; 3-state outputs allow shared bus arbitration with other modules. Use Value: ±24 mA drive strength directly activates relays without external transistors; IOFF protects controller during battery disconnect events. |
Use Scenario: Buffering LIN bus wake-up signals and window position sensor data between 3.3 V door MCU and 5 V mirror actuator ICs. IC Role / Device Role / Timing Role: Signal conditioner with hysteresis cleans noisy analog sensor edges before digitization and forwards LIN frames. Use Value: Schmitt-trigger inputs reject EMI from adjacent motor windings; AEC-Q100 qualification ensures reliability in vibration-prone door environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC126AQPWRQ1 | TI part; same AEC-Q100 Grade 1 rating, but uses TSSOP-14 (SOT402-1) package with 4.4 mm body width. | Higher thermal resistance (θJA = 130 K/W vs. 105 K/W for SO14); less suitable for high-density layouts with limited airflow. | Select if existing PCB uses TSSOP footprint or requires tighter pitch; verify thermal derating above 81 °C ambient. |
| 74LVC126APW-Q100 | Nexperia's TSSOP-14 variant; identical electrical specs, but thinner profile (1.2 mm vs. 1.75 mm) and different lead geometry. | Lacks side-wettable flanks-limits AOI capability during automated optical inspection in high-volume manufacturing. | Prefer for space-constrained modules where height is critical; avoid if AOI-based solder-joint verification is mandatory. |
Compared with SN74LVC126AQPWRQ1 and 74LVC126APW-Q100, the 74LVC126AD-Q100 offers superior thermal performance in SO14 form factor and full AOI support via DHVQFN-compatible design rules-making it optimal for cost-sensitive, thermally demanding automotive control units.
Availability
74LVC126AD-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, power distribution units, and door module communication hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVC126AD-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 74LVC126A-Q100 belongs to Nexperia's automotive-qualified LVC logic family, designed specifically for robust, low-power signal translation in harsh automotive environments where voltage domain bridging and functional safety are critical.
FAQ
Can 74LVC126AD-Q100 operate with a 1.2 V supply and still interface with 5 V inputs?
Yes. The device is fully specified down to VCC = 1.2 V and maintains 5 V tolerance on all inputs and outputs per Table 5 (VI and VO range: 0–5.5 V). Input thresholds scale with VCC (e.g., VIH = 0.65×VCC at 1.65–1.95 V), ensuring reliable logic detection even at minimum supply.
What is the purpose of the IOFF feature, and how does it behave during power-down?
IOFF disables outputs and blocks reverse current when VCC = 0 V. Per Table 6, IOFF leakage is ≤±10 μA at VI/VO = 5.5 V and VCC = 0 V. This prevents backflow from live 5 V buses into unpowered MCU I/O pins-critical for ISO 16750-2 load dump survival and sleep-mode integrity.
Does the SO14 package (SOT108-1) support automatic optical inspection (AOI)?
No-only the DHVQFN14 variant (SOT762-1) has side-wettable flanks enabling AOI. The SO14 package relies on X-ray or electrical test for solder-joint validation. However, its gull-wing leads and industry-standard footprint ensure high first-pass yield with conventional reflow and ICT.
How does Schmitt-trigger input action improve noise immunity in automotive applications?
Schmitt-trigger inputs provide hysteresis (~0.3 V at VCC = 3.3 V), meaning VIH and VIL differ significantly (e.g., VIH = 2.0 V, VIL = 0.8 V). This rejects noise spikes and slow-rising signals from long cables or inductive sensors-common in door modules and chassis harnesses-without requiring external RC filtering.
74LVC126AD-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74LVC126AD-Q100J FAQ
1.How can I place an order for 74LVC126AD-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC126AD-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 74LVC126AD-Q100J reliable?
The price and inventory of 74LVC126AD-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC126AD-Q100J is usually 5 days.
3.What payment methods are accepted for 74LVC126AD-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC126AD-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC126AD-Q100J?
74LVC126AD-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC126AD-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 74LVC126AD-Q100J?
For technical support, including 74LVC126AD-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC126AD-Q100J requirements.
6.How does Aetrix verify that 74LVC126AD-Q100J is sourced from the original manufacturer or authorized distributors?
All 74LVC126AD-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 74LVC126AD-Q100J meets industry standards.
7.What is the process for return or replacement of 74LVC126AD-Q100J?
All 74LVC126AD-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC126AD-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 74LVC126AD-Q100J part is unused and in its original packaging.
Return procedure for 74LVC126AD-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVC126AD-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…
