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Nexperia USA Inc. 74AHCT125D-Q100,11
- Part No.:
- 74AHCT125D-Q100,11
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74AHCT125D-Q100,11.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,993
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Product details
Overview
74AHCT125D-Q100,11 from Nexperia is an automotive-qualified quad 3-state buffer/line driver with TTL-compatible inputs, operating from 4.5 V to 5.5 V supply, featuring overvoltage-tolerant inputs up to 5.5 V, ±8 mA output drive, and propagation delay as low as 3.0 ns at 5 V/15 pF - used for bidirectional bus interfacing in automotive body control modules.
For engineers reviewing the 74AHCT125D-Q100,11 datasheet, 74AHCT125D-Q100,11 pinout, 74AHCT125D-Q100,11 application, or 74AHCT125D-Q100,11 equivalent, this page delivers verified functional identity, SO14 package mapping, AEC-Q100 Grade 1 qualification status, input/output voltage thresholds per VCC, and real-world timing behavior under 15 pF and 50 pF loads.
Technical Context
This device implements four independent non-inverting buffers, each with active-low 3-state enable (nOE), enabling precise control of signal direction on shared buses. Its TTL-level input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) ensure compatibility with legacy 5 V logic families.
All inputs feature Schmitt-trigger action for noise immunity, and outputs are specified for ±8 mA drive into resistive loads while maintaining VOL ≤ 0.36 V and VOH ≥ 3.94 V at VCC = 4.5 V - critical for robust signal integrity in noisy automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 5.5 V - supports stable operation across automotive battery transients (e.g., load dump, cold crank). |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - ensures reliable recognition of TTL logic levels without level-shifting circuitry. |
| Output Drive | ±8 mA at VCC = 4.5 V - sufficient to drive standard 50 Ω transmission lines or multiple CMOS inputs (fan-out ≥ 20). |
| Propagation Delay | 3.0 ns typ (max 5.5 ns) at VCC = 5 V, CL = 15 pF - enables high-speed data routing in CAN/LIN subsystem interconnects. |
| Enable/Disable Time | ten = 3.4 ns typ, tdis = 4.5 ns typ at VCC = 5 V, CL = 15 pF - guarantees clean bus arbitration with minimal glitch window during state transitions. |
| Operating Temperature | −40 °C to +125 °C - qualified for engine bay and powertrain control unit mounting locations. |
| AEC-Q100 Grade | Grade 1 - certified for automotive applications per Automotive Electronics Council requirements. |
Pinout & Package
74AHCT125D-Q100,11 is housed in a plastic small outline package (SO14), SOT108-1, with 14 leads, 3.9 mm body width, and standard 1.27 mm lead pitch - compatible with automated PCB assembly and AOI inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 (1OE–4OE) | Active-low output enable | Each controls one buffer's 3-state output independently; HIGH forces high-impedance OFF-state. |
| 2, 5, 9, 12 (1A–4A) | Data input | TTL-compatible inputs with Schmitt-trigger action; tolerate up to 5.5 V regardless of VCC. |
| 3, 6, 8, 11 (1Y–4Y) | Data output | Non-inverting buffered outputs capable of sourcing/sinking ±8 mA with rail-to-rail swing. |
| 7 | GND | Reference ground terminal; required for all DC bias and noise return paths. |
| 14 | VCC | Main supply input; decoupling capacitor (100 nF) must be placed adjacent to this pin. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from −40 °C to +125 °C ambient, including HTOL, TC, ESD, and latch-up testing. |
| Overvoltage-tolerant inputs | Accepts up to 5.5 V input signals even when VCC = 4.5 V - eliminates need for external clamping diodes in mixed-voltage domains. |
| High noise immunity | Schmitt-trigger inputs provide >0.8 V hysteresis, rejecting fast transients common in vehicle electrical systems. |
| Balanced propagation delays | tpd variation ≤ 0.5 ns between channels ensures deterministic timing across all four buffers in synchronous bus applications. |
| DHVQFN-compatible footprint option | Same logic function available in SOT762-1 (DHVQFN14) for space-constrained ECUs requiring thermal enhancement and AOI-solderable side-wettable flanks. |
Applications
| Body Control Module (BCM) Bus Isolation | Instrument Cluster Display Interface |
|---|---|
|
Use Scenario: Isolating microcontroller GPIOs from shared LIN or PWM-controlled lighting circuits to prevent backfeed and contention. IC Role / Device Role / Timing Role: Quad buffer acts as unidirectional signal conditioner and bus gate, enabling/disabling communication paths via discrete OE control. Use Value: Prevents signal corruption during MCU reset sequences and allows safe hot-plug of peripheral modules without disrupting main bus operation. |
Use Scenario: Driving segmented LED backlight drivers and SPI-based display controllers from a single 5 V MCU port. IC Role / Device Role / Timing Role: Line driver translates MCU GPIO outputs to robust 5 V logic levels with fast edge rates (<7 ns) suitable for display timing budgets. Use Value: Eliminates need for discrete MOSFET level shifters while maintaining <10 ns skew between segments for flicker-free illumination. |
| Powertrain Sensor Signal Conditioning | ADAS Camera Interface Buffering |
|
Use Scenario: Interfacing analog sensor ADC reference outputs to multiple ECU subsystems sharing a common 5 V reference rail. IC Role / Device Role / Timing Role: 3-state buffer isolates reference voltage source from loading variations caused by concurrent ADC conversions. Use Value: Maintains reference accuracy within ±0.5% across temperature by limiting capacitive loading to <10 pF per channel. |
Use Scenario: Buffering parallel camera data lanes (e.g., 8-bit YUV) between image sensor and SoC in surround-view systems. IC Role / Device Role / Timing Role: High-speed line driver ensures signal integrity across 50 mm PCB traces with matched propagation delays across all four channels. Use Value: Enables pixel-perfect synchronization at 30 fps with <2 ns inter-channel skew, meeting MIPI D-PHY timing margin requirements. |
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 |
|---|---|---|---|
| 74AHC125D-Q100,11 | CMOS-level inputs (VIH = 3.85 V min at VCC = 5.5 V); lower ICC (2 μA typ) | Better suited for mixed 3.3 V/5 V systems where input voltage may exceed VCC | Select when interfacing with 3.3 V MCUs driving 5 V buses with level translation capability. |
| SN74LVC125APWRE4 | 3.3 V only (1.65–3.6 V); LVTTL-compatible; 24 mA drive; -40 °C to +125 °C | Requires external level shifters for 5 V bus interfacing; higher drive but narrower voltage range | Prefer for cost-sensitive infotainment subsystems operating strictly at 3.3 V with high fan-out demands. |
Compared with 74AHC125D-Q100,11 and SN74LVC125APWRE4, the 74AHCT125D-Q100,11 uniquely bridges legacy 5 V TTL logic and modern automotive microcontrollers without external components - delivering guaranteed VIH/VIL margins, AEC-Q100 compliance, and sub-5 ns timing at full temperature range.
Availability
74AHCT125D-Q100,11 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, powertrain sensor conditioning, and ADAS camera data buffering requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for 74AHCT125D-Q100,11 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 high-volume, high-reliability logic, discrete, and MOSFET solutions - serving automotive, industrial, and consumer markets with AEC-Q100-qualified components.
This device belongs to Nexperia's automotive logic portfolio, designed specifically for robust signal routing in harsh-temperature, high-noise vehicle subsystems where functional safety and long-term supply stability are mandatory.
FAQ
Is 74AHCT125D-Q100,11 pin-compatible with standard 74HC125 or 74LS125?
Yes - it uses the industry-standard SO14 pinout (SOT108-1) matching 74HC125 and 74LS125. However, input thresholds differ: 74AHCT125D-Q100,11 accepts TTL levels (VIH = 2.0 V), whereas 74HC125 requires CMOS levels (VIH ≈ 3.5 V at 5 V). Direct replacement is electrically valid only if driving sources meet TTL input specs.
Can 74AHCT125D-Q100,11 operate at 3.3 V supply?
No - the 74AHCT variant is specified only for 4.5 V to 5.5 V operation per its recommended conditions. At 3.3 V, VIH/VIL thresholds become undefined and output drive degrades significantly. For 3.3 V systems, use 74AHC125D-Q100,11 or 74LVC125 instead.
What is the maximum capacitive load this device can drive reliably?
It is characterized up to 50 pF load capacitance with guaranteed timing (tpd ≤ 9.5 ns at VCC = 5 V). Driving >50 pF increases propagation delay nonlinearly and may cause overshoot; for >100 pF, add series termination or consider a dedicated bus driver with higher current capability.
Does the SO14 package (SOT108-1) support lead-free reflow soldering?
Yes - the 74AHCT125D-Q100,11 in SO14 packaging is qualified for standard Pb-free reflow profiles (JEDEC J-STD-020, peak 260 °C). The package uses matte tin plating and meets RoHS and REACH requirements without exemption.
74AHCT125D-Q100,11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74AHCT125D-Q100,11 FAQ
1.How can I place an order for 74AHCT125D-Q100,11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT125D-Q100,11 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 74AHCT125D-Q100,11 reliable?
The price and inventory of 74AHCT125D-Q100,11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT125D-Q100,11 is usually 5 days.
3.What payment methods are accepted for 74AHCT125D-Q100,11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT125D-Q100,11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT125D-Q100,11?
74AHCT125D-Q100,11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT125D-Q100,11 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 74AHCT125D-Q100,11?
For technical support, including 74AHCT125D-Q100,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT125D-Q100,11 requirements.
6.How does Aetrix verify that 74AHCT125D-Q100,11 is sourced from the original manufacturer or authorized distributors?
All 74AHCT125D-Q100,11 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 74AHCT125D-Q100,11 meets industry standards.
7.What is the process for return or replacement of 74AHCT125D-Q100,11?
All 74AHCT125D-Q100,11 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT125D-Q100,11, 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 74AHCT125D-Q100,11 part is unused and in its original packaging.
Return procedure for 74AHCT125D-Q100,11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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