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Nexperia USA Inc. 74HC125D-Q100J
- Part No.:
- 74HC125D-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC125D-Q100J.pdf
- Description:
- IC BUFFER NON-INVERT 6V 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,333
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Product details
Overview
74HC125D-Q100 from Nexperia is an automotive-qualified quad buffer/line driver with 3-state outputs, controlled by active-low output enable inputs (1OE–4OE). It operates across 2.0 V to 6.0 V supply, delivers propagation delay as low as 9 ns at VCC = 6.0 V, and supports ambient temperatures up to +125 °C. It is used in automotive body control modules for bidirectional bus isolation and signal buffering between microcontrollers and peripheral drivers.
For engineers reviewing the 74HC125D-Q100 datasheet, 74HC125D-Q100 pinout, 74HC125D-Q100 application, or 74HC125D-Q100 equivalent, key selection criteria include 3-state timing (enable/disable times ≤32 ns), CMOS input compatibility, AEC-Q100 Grade 1 qualification, and SO14 package thermal derating behavior above 100 °C.
Technical Context
This device implements four independent non-inverting buffers, each with dedicated active-low 3-state enable control. Each buffer features clamp diodes on inputs, enabling safe interfacing to voltages exceeding VCC when used with current-limiting resistors.
It adheres to JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards, supports both CMOS-level inputs (74HC variant) and TTL-level inputs (74HCT variant), and exhibits latch-up immunity >100 mA per JESD78 Class II Level B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.0 V to 6.0 V - enables direct interface with 3.3 V and 5 V logic domains without level shifters |
| Propagation delay | 9 ns (typ) at VCC = 6.0 V, CL = 50 pF - ensures tight timing margins in high-speed bus buffering |
| Enable/disable time | 12 ns (typ) at VCC = 6.0 V - guarantees fast bus turnaround in shared-data applications |
| Output drive | ±7.8 mA at VCC = 6.0 V - sufficient to drive 50 pF loads and standard CMOS/TTL fan-out |
| Input leakage | ±0.1 μA (max) at VCC = 6.0 V - minimizes standby current impact in always-on automotive subsystems |
| Operating temperature | −40 °C to +125 °C - qualified for under-hood and powertrain control unit environments |
| AEC-Q100 grade | Grade 1 - certified for automotive applications requiring full temperature range operation |
Pinout & Package
74HC125D-Q100 uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, with gull-wing leads and pin 1 index marker.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | 1OE, 2OE, 3OE, 4OE | Active-low output enable inputs - assert LOW to enable corresponding buffer output; HIGH forces high-impedance state |
| 2, 5, 9, 12 | 1A, 2A, 3A, 4A | Buffer data inputs - accept CMOS-level signals; internal clamp diodes allow overvoltage tolerance with series resistors |
| 3, 6, 8, 11 | 1Y, 2Y, 3Y, 4Y | Buffer data outputs - non-inverting, 3-state, capable of sourcing/sinking ±7.8 mA at VCC = 6.0 V |
| 7 | GND | Ground reference (0 V) - must be low-impedance connection to minimize noise coupling into 3-state transitions |
| 14 | VCC | Supply voltage input - decoupling capacitor (100 nF ceramic) required within 10 mm for stable switching performance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from −40 °C to +125 °C, including HTOL, TC, and ESD stress testing per AEC requirements |
| Wide VCC range (2.0–6.0 V) | Eliminates need for separate voltage regulators in mixed-supply systems; compatible with legacy 5 V and modern 3.3 V MCUs |
| Input clamp diodes | Enables robust interfacing to external sensors or actuators operating at voltages beyond VCC, when used with current-limiting resistors |
| Low dynamic power (CPD = 22 pF) | Reduces switching power dissipation in high-frequency bus applications; enables <1 mW per buffer at 1 MHz, 5 V |
| High noise immunity | CMOS input thresholds (VIH ≥ 3.15 V @ VCC = 4.5 V) provide >1.5 V noise margin against automotive electrical transients |
Applications
| Automotive Body Control Module (BCM) | Infotainment System I/O Expansion |
|---|---|
|
Use Scenario: Isolating CAN/LIN transceiver data lines from MCU GPIO during sleep mode to prevent backfeeding and leakage. IC Role / Device Role / Timing Role: Quad 3-state buffer acting as bidirectional bus gate; enables/disables signal paths synchronously with MCU wake/sleep states. Use Value: Reduces system standby current by >20 μA per isolated line while maintaining fast (<32 ns) re-enable timing upon wake-up interrupt. |
Use Scenario: Expanding GPIO count for touch panel controller and display backlight dimming signals in head-unit design. IC Role / Device Role / Timing Role: Non-inverting line driver buffering low-voltage logic signals to higher-current peripherals; 3-state allows shared bus arbitration. Use Value: Supports simultaneous driving of multiple 5 V backlight LEDs and 3.3 V capacitive touch sense lines without signal contention or level-shifter overhead. |
| ADAS Camera Interface Buffering | Electric Power Steering (EPS) Motor Control Logic |
|
Use Scenario: Conditioning parallel pixel clock and data signals between image sensor and SoC in surround-view camera module. IC Role / Device Role / Timing Role: Timing-critical buffer ensuring sub-10 ns skew matching across four parallel data lanes; 3-state isolates sensor during configuration. Use Value: Maintains <1 ns inter-lane skew at 25 MHz pixel clock, preventing frame corruption during hot-plug or firmware update sequences. |
Use Scenario: Interfacing torque sensor analog front-end outputs and MCU ADC inputs in EPS motor control unit. IC Role / Device Role / Timing Role: Signal isolator protecting MCU inputs from transient coupling on motor phase sensing lines; clamped inputs tolerate ±5 V spikes. Use Value: Prevents false ADC readings during motor commutation events by limiting input fault current to <20 mA via integrated clamp diodes and external resistors. |
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 |
|---|---|---|---|
| 74HCT125D-Q100 | TTL-compatible inputs (VIH = 2.0 V min), identical SO14 package and timing | Better suited for legacy 5 V systems with mixed TTL/CMOS logic; less noise margin than HC version in 3.3 V domains | Select when interfacing directly to older 5 V microcontrollers or discrete transistor logic without level translation |
| SN74LVC125APWR | Lower VCC range (1.65–3.6 V), smaller TSSOP14 package, faster tpd (5.5 ns @ 3.3 V) | Designed for low-voltage portable and ADAS domain controllers; not AEC-Q100 qualified | Choose only for non-automotive, 3.3 V-only designs where footprint and speed outweigh qualification requirements |
Compared with 74HC125D-Q100, the 74HCT125D-Q100 offers better compatibility with legacy 5 V TTL logic but reduced noise immunity in mixed-voltage systems, while the SN74LVC125APWR provides superior speed and density at the cost of automotive qualification and wider supply flexibility.
Availability
74HC125D-Q100 is available at Aetrix Electronics and suitable for automotive body control, infotainment I/O expansion, and ADAS camera interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC125D-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 specializing in high-performance, high-reliability logic, analog, and discrete components, with leadership in automotive-grade standard products.
The 74HC125-Q100 belongs to Nexperia's automotive logic portfolio, designed specifically to meet stringent AEC-Q100 requirements for body electronics, chassis, and infotainment systems demanding robustness and long-term supply stability.
FAQ
What is the maximum recommended operating frequency for 74HC125D-Q100?
The device does not specify a maximum clock frequency, as it is a combinational buffer-not a clocked device-but its propagation delay (9 ns typ at VCC = 6.0 V, CL = 50 pF) supports reliable operation up to ~35 MHz for single-edge signaling in bus applications. System-level timing depends on load capacitance, PCB routing, and supply decoupling.
Can 74HC125D-Q100 drive a 100 pF load reliably?
Yes-while characterized at 50 pF, the output stage can drive up to 100 pF with measurable timing degradation: tpd increases to ~22 ns and tt extends to ~18 ns at VCC = 6.0 V. Maintain solid ground return and local 100 nF decoupling to preserve signal integrity and avoid ringing.
Is there a pin-compatible replacement with higher drive strength?
No pin-compatible Nexperia part exceeds ±7.8 mA drive at VCC = 6.0 V in SO14. The 74HC541D-Q100 (octal buffer) offers same drive but double channel count in same package; for higher current, consider dual-channel 74HC244D-Q100 with ±15 mA drive-but requires PCB redesign due to different pinout.
Does the 74HC125D-Q100 require external pull-up or pull-down resistors on OE pins?
No-OE inputs have no internal pull resistors, but their CMOS structure draws negligible leakage current (±0.1 μA). External pull-downs (e.g., 10 kΩ to GND) are recommended in systems where OE state must default to disabled (HIGH) during power-up or reset to prevent bus contention before MCU initialization.
74HC125D-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- 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:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74HC125D-Q100J FAQ
1.How can I place an order for 74HC125D-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC125D-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 74HC125D-Q100J reliable?
The price and inventory of 74HC125D-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC125D-Q100J is usually 5 days.
3.What payment methods are accepted for 74HC125D-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC125D-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC125D-Q100J?
74HC125D-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC125D-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 74HC125D-Q100J?
For technical support, including 74HC125D-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC125D-Q100J requirements.
6.How does Aetrix verify that 74HC125D-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HC125D-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 74HC125D-Q100J meets industry standards.
7.What is the process for return or replacement of 74HC125D-Q100J?
All 74HC125D-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HC125D-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 74HC125D-Q100J part is unused and in its original packaging.
Return procedure for 74HC125D-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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