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Nexperia USA Inc. 74HCT125PW-Q100J
- Part No.:
- 74HCT125PW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HCT125PW-Q100J.pdf
- Description:
- IC BUF NON-INVERT 5.5V 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,612
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Product details
Overview
74HCT125PW-Q100 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, delivering propagation delay as low as 12 ns (VCC = 5 V, CL = 15 pF), and supporting ambient temperatures up to +125 °C in TSSOP14 packaging - used for bidirectional data bus isolation in automotive body control modules.
For engineers reviewing the 74HCT125PW-Q100 datasheet, 74HCT125PW-Q100 pinout, 74HCT125PW-Q100 application, or 74HCT125PW-Q100 equivalent, key selection criteria include TTL-level input compatibility, 3-state enable timing (enable/disable ≤ 42 ns), output drive capability (±6 mA at VCC = 4.5 V), and AEC-Q100 Grade 1 qualification for under-hood electronics.
Technical Context
This device implements four independent non-inverting buffers, each with active-low 3-state output enable (nOE), enabling precise bus contention control in shared-data architectures. Each channel features diode-clamped inputs for overvoltage tolerance and supports CMOS-level output swing relative to VCC.
It operates within a strict automotive temperature range (−40 °C to +125 °C) and meets JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards. Input thresholds are fixed at TTL levels (VIH = 2.0 V min, VIL = 0.8 V max), ensuring interoperability with legacy 5 V logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures stable operation across automotive battery transients (e.g., load dump, cold crank). |
| Propagation Delay | 12 ns (typ, VCC = 5 V, CL = 15 pF) - enables reliable timing in 20+ MHz digital control loops. |
| Output Drive | ±6 mA (VOH/VOL @ VCC = 4.5 V) - sufficient to drive 50 pF loads with <18 ns transition time. |
| Enable/Disable Time | ≤42 ns (max, VCC = 4.5 V) - guarantees clean bus arbitration without glitches during state transitions. |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - matches standard TTL logic, eliminating level-shifting in mixed-voltage systems. |
| AEC-Q100 Grade | Grade 1 (−40 °C to +125 °C) - qualified for engine bay, transmission control, and ADAS sensor interface locations. |
| ESD Protection | HBM >2000 V, CDM >1000 V - withstands handling and assembly ESD events in automotive manufacturing. |
Pinout & Package
TSSOP14 plastic thin shrink small outline package (SOT402-1), 14-lead, body width 4.4 mm, 0.65 mm pitch - optimized for high-density automotive PCB layouts with thermal derating of 7.3 mW/K above 81 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | nOE (active-low output enable) | Independent per-channel control: HIGH disables output (Z-state); LOW enables non-inverting buffer action. |
| 2, 5, 9, 12 | nA (data input) | TTL-compatible input accepting 0.8 V / 2.0 V thresholds; includes clamp diodes for ±20 mA transient current handling. |
| 3, 6, 8, 11 | nY (data output) | CMOS-output stage with rail-to-rail swing; sinks/sourses ±6 mA while maintaining VOL ≤ 0.4 V and VOH ≥ 3.7 V. |
| 7 | GND | Ground reference for all I/O and supply pins; must be low-impedance connection to minimize switching noise coupling. |
| 14 | VCC | Primary power supply (4.5–5.5 V); decoupling capacitor (100 nF) required within 5 mm for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40 °C to +125 °C operation with full parametric testing per stress conditions - eliminates requalification effort for automotive Tier 1 designs. |
| TTL-compatible input thresholds | VIH = 2.0 V min / VIL = 0.8 V max ensures direct interfacing with legacy 5 V microcontrollers and sensors without external level shifters. |
| Independent 3-state control per channel | Four separate nOE inputs allow selective bus segment isolation - critical for fault-tolerant CAN/LIN transceiver data paths and multiplexed display drivers. |
| Clamp diode-protected inputs | Enables use of series current-limiting resistors for interfacing to voltages exceeding VCC (e.g., 12 V sensor signals), reducing BOM count and board space. |
| Low dynamic power dissipation | CPD = 24 pF enables sub-1 mW dynamic power at 1 MHz toggle rate - supports low-power always-on vehicle networks (e.g., door module wake-up logic). |
Applications
| Body Control Module Bus Isolation | Instrument Cluster Display Interface |
|---|---|
|
Use Scenario: Isolating LIN bus signals between MCU and multiple door/window ECUs to prevent cross-talk during concurrent actuation. IC Role / Device Role / Timing Role: Quad buffer provides independent 3-state control per LIN node, enabling time-multiplexed communication on shared physical lines. Use Value: Enables deterministic signal routing with ≤42 ns enable/disable timing, eliminating bus contention and reducing need for external arbitration logic. |
Use Scenario: Driving segmented LCD backlight control lines from a low-drive-capability MCU GPIO bank in automotive instrument clusters. IC Role / Device Role / Timing Role: Acts as level-translating line driver with TTL input compatibility and 6 mA output sink/source - directly interfaces 3.3 V MCU to 5 V display logic. Use Value: Eliminates discrete transistor arrays; clamp diodes tolerate 12 V backlight feedback signals, simplifying protection circuitry. |
| ADAS Camera Sensor Data Multiplexing | Transmission Control Unit I/O Expansion |
|
Use Scenario: Multiplexing parallel pixel data streams from dual rear-view cameras into a single image processor input bus. IC Role / Device Role / Timing Role: Four buffers route camera sync/data lines with matched propagation delay (<25 ns skew) and simultaneous 3-state disable for clean bus handover. Use Value: Achieves sub-20 ns inter-channel skew at 5 V supply, preserving timing integrity for 10+ MHz parallel video interfaces. |
Use Scenario: Expanding GPIO count for solenoid driver enable signals in 8-speed automatic transmission controllers. IC Role / Device Role / Timing Role: Provides robust 3-state buffering between MCU outputs and high-noise transmission solenoid drivers, with GND-referenced enable control. Use Value: Withstands 100 mA latch-up immunity and 2000 V HBM ESD - prevents field failures due to solenoid back-EMF coupling into control logic. |
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 | SO14 package (SOT108-1), wider body (3.9 mm), higher thermal resistance (10.1 mW/K derating above 100 °C). | Better suited for prototyping or lower-density boards where TSSOP reflow is unavailable. | Select when manual soldering, test fixture compatibility, or legacy footprint reuse is required. |
| SN74HCT125QPWRQ1 | Texas Instruments variant; identical electrical specs but different AEC-Q100 test report structure and qualification documentation traceability. | Accepted in TI-centric OEM programs (e.g., GM, Ford) requiring TI-specific PPAP packages. | Choose only if mandated by customer's component approval process or existing TI-based design inheritance. |
Compared with 74HCT125PW-Q100, the SO14 variant trades board space for easier assembly and thermal margin at elevated ambient, while the TI part offers documentation alignment over electrical equivalence - neither provides improved speed, drive strength, or temperature range.
Availability
74HCT125PW-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, ADAS sensor data routing, and transmission control unit I/O expansion requiring stable component supply across extended temperature and AEC-Q100-compliant sourcing.
Supply support for 74HCT125PW-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 MOSFET solutions, with leadership in automotive-grade components and advanced packaging technologies.
The 74HCT series targets automotive and industrial applications demanding TTL-compatible logic with AEC-Q100 qualification, emphasizing robustness, low power, and seamless integration into legacy 5 V systems.
FAQ
What is the maximum clock/data frequency supported by the 74HCT125PW-Q100?
The device does not operate as a clocked element but as a combinational buffer. Its usable data rate is determined by propagation delay (12 ns typ at 5 V, 15 pF) and transition time (5–12 ns). For clean signal integrity, it reliably supports data edges up to ~20 MHz in typical PCB environments with controlled impedance traces and proper termination.
Can the 74HCT125PW-Q100 interface directly with 3.3 V microcontrollers?
Yes - its TTL-compatible inputs accept VIH ≥ 2.0 V and VIL ≤ 0.8 V, making it compatible with 3.3 V CMOS outputs (which typically drive >2.4 V HIGH and <0.4 V LOW). No level shifter is needed; however, outputs swing rail-to-rail at VCC (4.5–5.5 V), so downstream 3.3 V receivers require input tolerance to 5 V or external clamping.
Is the 74HCT125PW-Q100 pin-compatible with the 74HC125PW-Q100?
Yes - both share identical TSSOP14 pinout (SOT402-1), same pin functions, and identical recommended operating conditions. The sole functional difference is input threshold: 74HC125 uses CMOS thresholds (VIH ≈ 0.7×VCC), while 74HCT125 uses fixed TTL thresholds (VIH = 2.0 V min), making them electrically interchangeable only when driving sources meet both threshold sets.
Does this device support hot-swap or live-insertion on powered buses?
No - the 74HCT125PW-Q100 lacks explicit hot-swap protection features such as power-up 3-state or Ioff partial power-down. Applying VCC before enabling nOE may cause output contention. For live-bus applications, external series resistors and careful power sequencing (VCC before signals) are required per Nexperia's application guidance in AN10754.
74HCT125PW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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:
- 6mA, 6mA
- 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-TSSOP
74HCT125PW-Q100J FAQ
1.How can I place an order for 74HCT125PW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT125PW-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 74HCT125PW-Q100J reliable?
The price and inventory of 74HCT125PW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT125PW-Q100J is usually 5 days.
3.What payment methods are accepted for 74HCT125PW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT125PW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT125PW-Q100J?
74HCT125PW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT125PW-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 74HCT125PW-Q100J?
For technical support, including 74HCT125PW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT125PW-Q100J requirements.
6.How does Aetrix verify that 74HCT125PW-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HCT125PW-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 74HCT125PW-Q100J meets industry standards.
7.What is the process for return or replacement of 74HCT125PW-Q100J?
All 74HCT125PW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT125PW-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 74HCT125PW-Q100J part is unused and in its original packaging.
Return procedure for 74HCT125PW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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