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Nexperia USA Inc. 74AHC125PW,118
- Part No.:
- 74AHC125PW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AHC125PW,118.pdf
- Description:
- IC BUF NON-INVERT 5.5V 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:8,458
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Product details
Overview
74AHC125PW,118 from Nexperia is a quad CMOS buffer/line driver with 3-state outputs, controlled by active-low output enable inputs (1OE–4OE). It operates across 2.0 V to 5.5 V supply, supports overvoltage-tolerant inputs up to 5.5 V, and delivers balanced propagation delays as low as 3.0 ns (VCC = 5.0 V, CL = 15 pF). Used in mixed-voltage bus interfacing, level translation, and digital signal routing in industrial control and embedded I/O expansion.
For engineers reviewing the 74AHC125PW,118 datasheet, 74AHC125PW,118 pinout, 74AHC125PW,118 application, or 74AHC125PW,118 equivalent, this device serves as a voltage-scalable, low-power, 3-state buffer for bidirectional bus isolation, logic-level translation between 3.3 V and 5 V domains, and noise-immune signal conditioning in space-constrained PCB layouts.
Technical Context
The 74AHC125PW,118 implements four independent non-inverting buffers, each with dedicated active-low 3-state enable control. Its Schmitt-trigger inputs provide high noise immunity, while overvoltage tolerance enables safe operation when interfacing with higher-voltage peripherals without external clamping.
All inputs accept CMOS-level signals, and outputs drive standard CMOS loads with rail-to-rail swing. The device is specified from –40 °C to +125 °C and features latch-up immunity exceeding 100 mA per JESD78 Class II Level A, supporting robust operation in harsh industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - Enables direct use in both 3.3 V and 5 V systems without level shifters. |
| Propagation Delay (tpd) | 3.0 ns max at VCC = 5.0 V, CL = 15 pF - Supports >100 MHz data rates in short-bus applications. |
| Input Voltage Tolerance | Up to 5.5 V regardless of VCC - Allows safe interfacing with 5 V signals even when powered from 3.3 V. |
| Output Drive Strength | ±8.0 mA at VCC = 4.5 V - Sufficient to drive 15 pF loads with <7 ns delay and maintain signal integrity. |
| Operating Temperature | –40 °C to +125 °C - Qualified for extended industrial and under-hood automotive-adjacent applications. |
| Power Dissipation (Ptot) | 500 mW (TSSOP14) - Enables sustained operation at full speed with minimal thermal derating below 81 °C. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Reduces need for external ESD protection in board-level designs. |
Pinout & Package
TSSOP14 plastic thin shrink small outline package (SOT402-1), 14-lead, body width 4.4 mm, 0.65 mm pitch, 1.2 mm max height - optimized for high-density PCBs with improved thermal performance over SO14.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 (1OE–4OE) | Active-low output enable | Each independently disables its associated buffer output to high-impedance state, enabling bus sharing. |
| 2, 5, 9, 12 (1A–4A) | Data input | CMOS-compatible inputs with Schmitt-trigger action for noise rejection on slow or noisy signals. |
| 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 plane connection; must be low-impedance for stable switching and noise control. |
| 14 | VCC | Primary power supply pin; decoupling capacitor (100 nF) required within 5 mm for clean transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range (2.0–5.5 V) | Eliminates need for separate voltage regulators when integrating into mixed-supply systems. |
| Overvoltage-tolerant inputs | Accepts 5.5 V inputs while powered from 2.0 V–3.3 V, simplifying inter-IC communication across voltage domains. |
| Schmitt-trigger inputs | Provides ≥0.3 V hysteresis, rejecting noise spikes up to 30% of VCC without false triggering. |
| Low dynamic power (CPD = 10 pF) | Reduces switching power consumption in high-frequency I/O buffering, critical for battery-powered edge nodes. |
| Latch-up immunity >100 mA | Ensures survivability during transient overcurrent events without destructive failure or system reset. |
Applications
| Industrial PLC I/O Expansion | Microcontroller GPIO Multiplexing |
|---|---|
Use Scenario: Isolating and buffering digital I/O lines between a 3.3 V microcontroller and 5 V field sensors or actuators in programmable logic controllers. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing voltage translation, bus contention prevention, and noise filtering via Schmitt inputs. Use Value: Enables reliable bidirectional signal routing without external level shifters or pull-up networks, reducing BOM count and layout area. |
Use Scenario: Expanding limited GPIO count on an ARM Cortex-M MCU by driving multiple peripheral enable lines from a shared parallel bus. IC Role / Device Role / Timing Role: Quad buffer with independent OE control acts as a programmable I/O port expander with sub-7 ns enable/disable timing. Use Value: Delivers deterministic 3-state control latency (<9 ns disable time) for synchronized peripheral activation in real-time control loops. |
| USB Hub Signal Conditioning | Legacy Parallel Port Interface |
Use Scenario: Cleaning and retiming USB enumeration signals (e.g., VBUS detect, ID pin sensing) before routing to a USB controller IC. IC Role / Device Role / Timing Role: Low-propagation-delay buffer with overvoltage-tolerant inputs ensures safe sampling of 5 V USB signals at 3.3 V logic levels. Use Value: Prevents input damage and metastability during hot-plug events while maintaining signal fidelity for reliable host detection. |
Use Scenario: Interfacing modern SoCs with legacy parallel printer or scanner ports requiring TTL-compatible 5 V drive capability. IC Role / Device Role / Timing Role: 3-state CMOS buffer provides level-shifting, bus isolation, and fanout amplification for 8-bit data/address latching. Use Value: Replaces discrete transistor arrays with single-chip solution, cutting assembly cost and improving timing consistency across all 8 lines. |
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 |
|---|---|---|---|
| 74AHCT125PW,118 | TTL-compatible inputs (VIH = 2.0 V min), identical pinout and package | Better suited for legacy 5 V TTL systems; not overvoltage tolerant beyond VCC | Select when interfacing exclusively with 5 V TTL sources and strict VIH/VIL thresholds are required. |
| SN74LVC125APW | Lower VCC range (1.65–3.6 V), 3.3 V only; 24 mA drive; different pinout (SO-14 only) | Optimized for low-voltage portable systems; incompatible with 5 V inputs or supplies | Choose only for 3.3 V-only designs needing higher drive strength and lower static current. |
Compared with 74AHCT125PW,118, the 74AHC125PW,118 offers superior voltage-domain flexibility and overvoltage safety; versus SN74LVC125APW, it trades lower voltage operation for broader supply compatibility and proven industrial temperature resilience.
Availability
74AHC125PW,118 is available at Aetrix Electronics and suitable for industrial automation, embedded I/O expansion, and mixed-voltage interface design requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for 74AHC125PW,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 focused on essential efficiency-enhancing components, delivering high-performance, reliable, and scalable logic, analog, and MOSFET solutions.
The 74AHC125PW,118 belongs to Nexperia's AHC logic family-designed for low-power, high-speed, voltage-flexible digital interfacing in industrial, computing, and communications equipment.
FAQ
What is the maximum clock/data rate supported by the 74AHC125PW,118?
The 74AHC125PW,118 supports data rates up to ~120 MHz in typical configurations, based on its 3.0 ns propagation delay (VCC = 5.0 V, CL = 15 pF) and 6.5 ns disable time. Real-world throughput depends on load capacitance, trace impedance, and termination; for 50 pF loads, usable bandwidth drops to ~80 MHz due to increased tpd (7.5 ns max).
Can the 74AHC125PW,118 safely interface a 5 V sensor output with a 3.3 V microcontroller?
Yes. Its inputs tolerate up to 5.5 V regardless of VCC, allowing direct connection of 5 V sensor outputs to the 74AHC125PW,118 powered at 3.3 V. The buffered output then swings rail-to-rail between 0 V and 3.3 V, matching the MCU's input thresholds without external resistors or clamps.
Is thermal derating required for continuous operation at +125 °C?
Yes. For the TSSOP14 package (SOT402-1), total power dissipation derates linearly at 7.3 mW/K above +81 °C. At +125 °C, Ptot is reduced to approximately 465 mW (500 mW − 44 K × 7.3 mW/K), requiring careful power budgeting if driving heavy capacitive loads at maximum speed.
Does the 74AHC125PW,118 require external pull-up or pull-down resistors on unused inputs?
No. All inputs feature internal Schmitt-trigger circuitry with defined thresholds and no floating-state risk. However, tying unused inputs to VCC or GND is still recommended to minimize dynamic current draw and prevent unintended switching from noise coupling in high-EMI environments.
74AHC125PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHC
- 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:
- 8mA, 8mA
- Voltage - Supply:
- 2V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74AHC125PW,118 FAQ
1.How can I place an order for 74AHC125PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC125PW,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 74AHC125PW,118 reliable?
The price and inventory of 74AHC125PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC125PW,118 is usually 5 days.
3.What payment methods are accepted for 74AHC125PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC125PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC125PW,118?
74AHC125PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC125PW,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 74AHC125PW,118?
For technical support, including 74AHC125PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC125PW,118 requirements.
6.How does Aetrix verify that 74AHC125PW,118 is sourced from the original manufacturer or authorized distributors?
All 74AHC125PW,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 74AHC125PW,118 meets industry standards.
7.What is the process for return or replacement of 74AHC125PW,118?
All 74AHC125PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC125PW,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 74AHC125PW,118 part is unused and in its original packaging.
Return procedure for 74AHC125PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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