My Inquiry
My Account
Nexperia USA Inc. 74AHC126D-Q100,118
- Part No.:
- 74AHC126D-Q100,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74AHC126D-Q100,118.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,971
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74AHC126D-Q100,118 from Nexperia is an automotive-qualified quad buffer/line driver with 3-state outputs, CMOS-level input compatibility (VIH = 3.85 V at VCC = 5.5 V), propagation delay as low as 3.3 ns (VCC = 4.5–5.5 V, CL = 15 pF), and operation across -40 °C to +125 °C. It serves as a voltage-level translating interface in automotive body control modules for driving LED arrays and sensor signal conditioning paths.
For engineers reviewing the 74AHC126D-Q100,118 datasheet, 74AHC126D-Q100,118 pinout, 74AHC126D-Q100,118 application, or 74AHC126D-Q100,118 equivalent, key selection criteria include AEC-Q100 Grade 1 qualification, 3-state enable timing (ten ≤ 7.0 ns), overvoltage-tolerant inputs up to 7.0 V, balanced propagation delays, and SO14 package compatibility with legacy PCB footprints.
Technical Context
This device implements four independent non-inverting buffers, each with active-HIGH output enable (nOE) controlling high-impedance tri-state output behavior. All inputs feature Schmitt-trigger action and tolerate voltages up to 7.0 V regardless of VCC, enabling mixed-voltage domain interfacing (e.g., 3.3 V logic driving 5 V loads).
It operates under AEC-Q100 Grade 1 conditions (-40 °C to +125 °C), supports dual supply ranges (2.0–5.5 V for AHC, 4.5–5.5 V for AHCT variant), and delivers rail-to-rail output swing with VOH ≥ 3.70 V and VOL ≤ 0.55 V at IO = ±8 mA, ensuring robust noise margins in noisy automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - Supports wide-input automotive power rails including post-regulated 3.3 V and 5 V domains. |
| Propagation Delay (tpd) | 3.3 ns (typ, VCC = 5 V, CL = 15 pF) - Enables high-speed signal routing in CAN/LIN subsystem interfaces without timing bottlenecks. |
| Input Voltage Tolerance | Up to 7.0 V - Allows direct connection to higher-voltage sensors or legacy 5 V buses without external level-shifting circuitry. |
| Output Drive Strength | ±8 mA (IOH/ IOL) - Sufficient to drive multiple CMOS inputs or small LED segments directly in dashboard lighting control. |
| Operating Temperature | -40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood and cabin-mounted ECUs. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - Meets automotive ESD immunity requirements for assembly and field operation. |
| Input Threshold Logic | CMOS-compatible (VIH = 3.85 V @ VCC = 5.5 V) - Ensures clean switching with standard microcontroller GPIOs. |
Pinout & Package
74AHC126D-Q100,118 uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads, JEDEC MS-012 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | nOE (1–4) | Active-HIGH output enable inputs - Each controls one buffer's 3-state output independently; enables bus sharing and power gating. |
| 2, 5, 9, 12 | nA (1–4) | Data inputs - Schmitt-triggered, overvoltage-tolerant inputs accept 0–7 V signals regardless of VCC. |
| 3, 6, 8, 11 | nY (1–4) | Buffered outputs - Rail-to-rail CMOS outputs capable of sourcing/sinking ±8 mA into capacitive or resistive loads. |
| 7 | GND | Ground reference - Primary return path for all internal logic and output current; must be low-impedance in automotive PCB layout. |
| 14 | VCC | Positive supply - Powers all four buffers and input circuitry; decoupling capacitor (100 nF) required near pin per automotive EMC guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C ambient, including temperature cycling, HTOL, and ESD stress tests. |
| Overvoltage-tolerant inputs | Accepts up to 7.0 V on any input pin while VCC = 2.0–5.5 V - eliminates need for external clamping diodes in mixed-voltage sensor interfaces. |
| Low propagation skew | Matched tpd across all four channels (<1 ns typical variation) - ensures synchronized signal routing in multi-channel display drivers or lighting controllers. |
| High noise immunity | Schmitt-trigger inputs provide >0.9 V hysteresis at VCC = 3.0 V - rejects EMI-induced glitches on long harness traces in vehicle networks. |
| 3-state output control | Independent nOE pins allow dynamic bus arbitration and power-aware output disabling - reduces system standby current in always-on modules. |
Applications
| LED Lighting Control | Body Control Module Interface |
|---|---|
Use Scenario: Driving segmented LED clusters in interior lighting and status indicators within automotive door modules. IC Role / Device Role / Timing Role: Quad buffer isolates MCU GPIOs from LED load transients and provides 3-state capability for multiplexed segment control. Use Value: Eliminates discrete transistor arrays; enables direct drive of up to 32 LEDs (8 per channel at 4 mA) with precise on/off timing and glitch-free transitions. |
Use Scenario: Interfacing 3.3 V microcontroller I/O with 5 V legacy sensors (e.g., HVAC thermistors, seat occupancy switches) in BCM subassemblies. IC Role / Device Role / Timing Role: Level-translating buffer with overvoltage tolerance handles sensor pull-up voltages beyond MCU VCC without damage or signal distortion. Use Value: Removes need for bidirectional translators or resistor dividers; maintains full logic swing and <7 ns propagation delay for real-time switch debouncing. |
| CAN/LIN Subsystem Signal Conditioning | Instrument Cluster Display Driver |
Use Scenario: Buffering and isolating diagnostic lines (e.g., K-line, LIN TX/RX) between microcontroller and physical layer transceivers. IC Role / Device Role / Timing Role: Provides ESD-hardened, low-skew buffering with 3-state support for shared bus arbitration during firmware updates. Use Value: Improves signal integrity on 20 kbps–200 kbps serial buses; HBM >2000 V rating protects against assembly ESD events and in-vehicle transients. |
Use Scenario: Driving column/row select lines in passive-matrix LCD displays used in digital instrument clusters. IC Role / Device Role / Timing Role: Quad non-inverting driver supplies fast, low-jitter strobes to LCD glass while supporting partial blanking via nOE control. Use Value: Achieves <10 ns edge rates needed for 60 Hz frame updates; Schmitt inputs reject noise from backlight inverters and DC-DC converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad buffer/line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHCT126D-Q100 | TTL-compatible inputs (VIH = 2.0 V min), identical pinout and timing | Better suited for interfacing with legacy 5 V TTL logic; lower input threshold reduces noise margin vs. CMOS | Select when driving from older 5 V microcontrollers or industrial PLC outputs with marginal high-level voltage. |
| SN74LVC126AQPWRQ1 | Lower VCC range (1.65–5.5 V), higher drive (±24 mA), same AEC-Q100 Grade 1 | Supports 1.8 V MCU interfaces and heavier capacitive loads; larger package (TSSOP14) | Choose for next-gen low-voltage designs requiring higher fan-out or tighter timing budgets. |
Compared with 74AHCT126D-Q100, this part offers superior noise immunity and wider voltage translation; compared with SN74LVC126AQPWRQ1, it provides proven SO14 footprint compatibility and lower static current (2 μA vs. 10 μA), favoring cost-sensitive, space-constrained BCM layouts.
Availability
74AHC126D-Q100,118 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, and LED lighting subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AHC126D-Q100,118 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 logic, analog, and MOSFET solutions optimized for automotive, industrial, and mobile applications.
The 74AHC126-Q100 series belongs to Nexperia's automotive-qualified logic portfolio, designed specifically for robust signal buffering and level translation in harsh-temperature, high-reliability vehicle subsystems.
FAQ
Is 74AHC126D-Q100,118 pin-compatible with standard 74AHC126 devices?
Yes - it shares identical pinout, electrical characteristics, and SO14 (SOT108-1) package dimensions with industrial-grade 74AHC126 variants. The Q100 suffix denotes AEC-Q100 qualification and extended temperature screening, but mechanical and functional compatibility is maintained for drop-in replacement in existing designs.
Can 74AHC126D-Q100,118 safely interface a 3.3 V MCU with a 5 V sensor having a 5 V pull-up?
Yes - its inputs tolerate up to 7.0 V independent of VCC, allowing direct connection to 5 V sensor outputs or pull-ups while powered from 3.3 V. No external level shifter or clamping diode is required, simplifying BOM and improving reliability in automotive harness interfaces.
What is the maximum capacitive load this device can drive while maintaining specified timing?
At VCC = 5.0 V and CL = 50 pF, propagation delay remains within spec (tpd ≤ 7.5 ns). Driving loads >50 pF increases delay nonlinearly and may degrade edge rate; for >100 pF loads, consider adding series termination or using higher-drive alternatives like SN74LVC126AQPWRQ1.
Does the GND pin (Pin 7) require thermal vias or special PCB layout in automotive applications?
Yes - Pin 7 is the sole ground reference for all four buffers and internal logic. Automotive layout best practices require a dedicated low-impedance ground plane, minimum two 0.3 mm thermal vias adjacent to Pin 7, and separation from noisy power planes to maintain noise immunity and meet CISPR 25 Class 5 emissions targets.
74AHC126D-Q100,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHC
- 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:
- 2V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74AHC126D-Q100,118 FAQ
1.How can I place an order for 74AHC126D-Q100,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC126D-Q100,118 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 74AHC126D-Q100,118 reliable?
The price and inventory of 74AHC126D-Q100,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC126D-Q100,118 is usually 5 days.
3.What payment methods are accepted for 74AHC126D-Q100,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC126D-Q100,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC126D-Q100,118?
74AHC126D-Q100,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC126D-Q100,118 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 74AHC126D-Q100,118?
For technical support, including 74AHC126D-Q100,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC126D-Q100,118 requirements.
6.How does Aetrix verify that 74AHC126D-Q100,118 is sourced from the original manufacturer or authorized distributors?
All 74AHC126D-Q100,118 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 74AHC126D-Q100,118 meets industry standards.
7.What is the process for return or replacement of 74AHC126D-Q100,118?
All 74AHC126D-Q100,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC126D-Q100,118, 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 74AHC126D-Q100,118 part is unused and in its original packaging.
Return procedure for 74AHC126D-Q100,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74AHC126D-Q100,118 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…
