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Nexperia USA Inc. 74AHC125BQ-Q100,11
- Part No.:
- 74AHC125BQ-Q100,11
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-VFQFN Exposed Pad
- Datasheet:
-
74AHC125BQ-Q100,11.pdf
- Description:
- IC BUF NON-INVERT 5.5V 14DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,731
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Product details
Overview
74AHC125BQ-Q100 from Nexperia is an automotive-qualified quad buffer/line driver with 3-state outputs, CMOS-level input compatibility, 2.0 V to 5.5 V supply range, -40 °C to +125 °C operating temperature, and DHVQFN14 package with side-wettable flanks - used for voltage-level translation and bus isolation in automotive body control modules.
For engineers reviewing the 74AHC125BQ-Q100 datasheet, 74AHC125BQ-Q100 pinout, 74AHC125BQ-Q100 application, or 74AHC125BQ-Q100 equivalent, key selection criteria include AEC-Q100 Grade 1 qualification, overvoltage-tolerant inputs up to 5.5 V, propagation delay ≤7.0 ns at 5 V/50 pF, 3-state enable timing (ten/tdis ≤9.5 ns), and thermal-enhanced DHVQFN packaging for automated optical inspection.
Technical Context
This device implements four independent non-inverting buffers, each with active-low 3-state output enable (nOE) controlling high-impedance output states. Input logic thresholds are CMOS-compatible (VIH = 3.85 V min at VCC = 5.5 V), enabling robust interfacing across mixed-voltage domains.
All inputs feature Schmitt-trigger action for noise immunity, and the DHVQFN14 package provides low thermal resistance and solder-joint inspectability via side-wettable flanks - critical for automotive production traceability and reliability validation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - supports direct interface with 3.3 V and 5 V logic systems without level shifters. |
| Operating Temperature | -40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood and powertrain applications. |
| Propagation Delay (tpd) | ≤7.0 ns at VCC = 5.0 V, CL = 50 pF - ensures timing-critical bus buffering in CAN/LIN subsystems. |
| Input Overvoltage Tolerance | Inputs withstand up to 5.5 V regardless of VCC - enables safe translation from 5 V peripherals to 3.3 V microcontrollers. |
| Output Drive Strength | ±8.0 mA at VCC = 4.5 V - sufficient to drive 15–50 pF PCB traces and multiple CMOS inputs. |
| Power Dissipation (Ptot) | 500 mW max at Tamb ≤ 98 °C (DHVQFN14) - derates 9.6 mW/K above 98 °C for thermal design margin. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - exceeds automotive ESD robustness requirements for assembly and field operation. |
Pinout & Package
DHVQFN14 package (SOT762-1): 2.5 × 3.0 × 0.85 mm body, no leads, 14 terminals, side-wettable flanks for AOI, exposed thermal pad (non-electrical, optional GND connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | nOE (active LOW) | Independent 3-state enable per buffer; pulls output to high-Z when HIGH. |
| 2, 5, 9, 12 | nA (input) | CMOS-level data input; Schmitt-triggered for noise rejection. |
| 3, 6, 8, 11 | nY (output) | Non-inverting buffered output; drives loads up to ±8 mA. |
| 7 | GND | Reference ground (0 V); required for all DC and AC performance specs. |
| 14 | VCC | Primary supply rail; powers internal logic and output drivers. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C ambient, including lifetime reliability testing. |
| Overvoltage-tolerant inputs | Accepts 0–5.5 V signals irrespective of VCC - eliminates external clamping diodes in mixed-voltage designs. |
| Schmitt-trigger inputs | Provides ≥0.8 V hysteresis on all inputs - rejects fast transients and improves noise margin in noisy harness environments. |
| DHVQFN with side-wettable flanks | Enables 100% automated optical inspection of solder joints - critical for zero-defect automotive manufacturing. |
| Low dynamic power | CPD = 10 pF - minimizes switching current in high-frequency bus applications (e.g., LIN wakeup signaling). |
Applications
| Automotive Body Control Unit (BCU) | Instrument Cluster Interface |
|---|---|
Use Scenario: Isolating microcontroller GPIOs from 12 V lighting drivers and sensor inputs in door modules. IC Role / Device Role / Timing Role: Quad buffer provides direction-controlled signal routing and bus contention prevention during multiplexed I/O sharing. Use Value: Overvoltage-tolerant inputs tolerate load-dump-induced spikes; 3-state control prevents backfeeding into MCU pins during sleep mode. |
Use Scenario: Level-shifting between a 3.3 V MCU and 5 V display driver IC in digital dashboards. IC Role / Device Role / Timing Role: Acts as unidirectional voltage translator with sub-7 ns delay to maintain SPI timing margins. Use Value: CMOS input thresholds and 5.5 V tolerance allow direct 5 V signal reception without external resistors or regulators. |
| ADAS Camera Power Sequencing | Automotive Gateway Subsystem |
Use Scenario: Enabling/disabling clock and reset signals to image sensors and ISP processors during boot and shutdown. IC Role / Device Role / Timing Role: 3-state buffers gate critical timing signals with precise enable/disable timing (ten/tdis ≤9.5 ns). Use Value: Balanced propagation delays ensure skew <1 ns between parallel channels - preserving pixel clock integrity. |
Use Scenario: Buffering diagnostic lines (K-Line, UART) between microcontroller and external OBD-II connector. IC Role / Device Role / Timing Role: Provides ESD-hardened, high-noise-immunity signal conditioning for in-vehicle serial communication paths. Use Value: HBM >2000 V and Schmitt-trigger inputs suppress ignition noise and alternator ripple on long harness runs. |
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 |
|---|---|---|---|
| 74AHCT125BQ-Q100 | TTL-compatible inputs (VIH = 2.0 V min), identical pinout and package | Better suited for legacy 5 V TTL systems; not recommended for pure CMOS 3.3 V interfaces due to higher input threshold mismatch | Select when interfacing with older 5 V microcontrollers or discrete logic families requiring TTL thresholds |
| SN74LVC125APWR | Lower VCC range (1.65–3.6 V), LVC logic family, TSSOP-14 package, no AEC-Q100 qualification | Limited to cabin electronics with <85 °C ambient; lacks automotive qualification and overvoltage tolerance | Use only in non-safety-critical infotainment subsystems where cost and footprint are prioritized over qualification |
Compared with 74AHCT125BQ-Q100, this part offers tighter VIH/VIL matching for modern CMOS MCUs; versus SN74LVC125APWR, it delivers full AEC-Q100 compliance and 5.5 V input tolerance essential for under-hood deployment.
Availability
74AHC125BQ-Q100 is available at Aetrix Electronics and suitable for automotive body control units, instrument cluster interfaces, ADAS camera sequencing, and gateway subsystems requiring stable component supply with full AEC-Q100 traceability.
Supply support for 74AHC125BQ-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 high-volume, high-reliability logic, analog, and MOSFET solutions - with leadership in automotive-qualified components and advanced packaging.
This device belongs to Nexperia's AHC-Q100 automotive logic family, designed specifically for robust signal buffering and voltage translation in harsh-temperature automotive ECUs where AEC-Q100 Grade 1 compliance and production-grade AOI capability are mandatory.
FAQ
Is the exposed thermal pad on the DHVQFN14 package electrically connected?
No - the exposed pad (terminal 1 index area) has no electrical function per datasheet note. It may remain floating or be connected to GND for thermal improvement, but no mechanical or electrical requirement exists to solder it. Thermal performance is validated with or without pad connection.
Can 74AHC125BQ-Q100 interface directly between a 3.3 V MCU and a 5 V sensor?
Yes - its inputs tolerate up to 5.5 V regardless of VCC, allowing direct connection of 5 V sensor outputs to the buffer inputs while powered from 3.3 V. Outputs swing rail-to-rail (0 V to 3.3 V), so downstream 3.3 V receivers require no additional level shifting.
What is the maximum capacitive load this buffer can drive while maintaining timing specs?
The datasheet guarantees tpd ≤7.0 ns and ten/tdis ≤9.5 ns up to 50 pF load capacitance at VCC = 5.0 V. Driving >50 pF increases delay nonlinearly and may violate setup/hold margins in synchronous buses; for >50 pF, add series termination or verify timing with actual layout parasitics.
Does this part support hot insertion or live bus connection?
No - while inputs are overvoltage tolerant, the device lacks true hot-swap protection (e.g., power-up sequencing control or back-drive blocking). Connecting to a live bus before VCC ramp-up risks latch-up or undefined state; always power VCC before applying input signals.
74AHC125BQ-Q100,11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHC
- Package/Case:
- 14-VFQFN Exposed Pad
- 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-DHVQFN (2.5x3)
74AHC125BQ-Q100,11 FAQ
1.How can I place an order for 74AHC125BQ-Q100,11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC125BQ-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 74AHC125BQ-Q100,11 reliable?
The price and inventory of 74AHC125BQ-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 74AHC125BQ-Q100,11 is usually 5 days.
3.What payment methods are accepted for 74AHC125BQ-Q100,11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC125BQ-Q100,11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC125BQ-Q100,11?
74AHC125BQ-Q100,11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC125BQ-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 74AHC125BQ-Q100,11?
For technical support, including 74AHC125BQ-Q100,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC125BQ-Q100,11 requirements.
6.How does Aetrix verify that 74AHC125BQ-Q100,11 is sourced from the original manufacturer or authorized distributors?
All 74AHC125BQ-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 74AHC125BQ-Q100,11 meets industry standards.
7.What is the process for return or replacement of 74AHC125BQ-Q100,11?
All 74AHC125BQ-Q100,11 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC125BQ-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 74AHC125BQ-Q100,11 part is unused and in its original packaging.
Return procedure for 74AHC125BQ-Q100,11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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