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Nexperia USA Inc. 74LVC125APW,118
- Part No.:
- 74LVC125APW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVC125APW,118.pdf
- Description:
- IC BUF NON-INVERT 3.6V 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:54,912
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Product details
Overview
74LVC125APW,118 from Nexperia is a quad 3-state buffer/line driver with 5 V tolerant inputs and outputs, operating from 1.2 V to 3.6 V supply. It features independent active-low output enable (nOE) per channel, Schmitt-trigger inputs for noise immunity, and IOFF circuitry enabling partial power-down protection. Used in mixed-voltage bus interfacing between 3.3 V logic and legacy 5 V systems.
For engineers reviewing the 74LVC125APW,118 datasheet, 74LVC125APW,118 pinout, 74LVC125APW,118 application, or 74LVC125APW,118 equivalent, key selection criteria include 5 V tolerance on all I/O pins, guaranteed operation down to 1.2 V VCC, tpd ≤ 6.0 ns at 3.3 V, IOFF-enabled backflow prevention during power sequencing, and TSSOP14 package compatibility with high-density PCB layouts.
Technical Context
The device implements four independent non-inverting buffers, each with dedicated active-low 3-state control (1OE–4OE). Each buffer accepts input voltages up to 5.5 V regardless of VCC level (1.2–3.6 V), enabling bidirectional voltage translation without external level shifters.
Schmitt-trigger inputs provide hysteresis (typically 0.3 V at VCC = 3.3 V), supporting slow-rising signals from mechanical switches or long traces. The IOFF circuit disables outputs and isolates I/O pins when VCC = 0 V, preventing destructive current flow during hot-insertion or staggered power-up sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.2 V to 3.6 V - supports ultra-low-power microcontrollers and dual-supply systems |
| I/O Voltage Tolerance | Up to 5.5 V - enables direct connection to 5 V buses without external clamping or translation |
| tpd (max) | 6.0 ns at VCC = 3.3 V, Tamb = +125 °C - ensures timing compliance in high-speed digital interfaces |
| IOFF Leakage | ±20 μA at VI/VO = 5.5 V, VCC = 0 V - guarantees safe isolation during partial power-down |
| Input Hysteresis | Typ. 0.3 V at VCC = 3.3 V - rejects noise on slow edges from sensors or panel controls |
| ESD Rating | HBM > 2000 V, CDM > 1000 V - meets industrial-grade robustness requirements |
| Operating Temp | −40 °C to +125 °C - qualified for extended-temperature industrial and automotive under-hood applications |
Pinout & Package
TSSOP14 package (SOT402-1): plastic thin shrink small outline, 14-lead, 4.4 mm body width, 0.65 mm pitch, exposed pad optional for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 (1OE–4OE) | Active-low output enable | Individually disables corresponding buffer output to high-impedance state; driven LOW to enable |
| 2, 5, 9, 12 (1A–4A) | Data input | Accepts 0–5.5 V logic levels independent of VCC; Schmitt-triggered for noise margin |
| 3, 6, 8, 11 (1Y–4Y) | Buffered output | Non-inverting, 3-state output; drives loads up to ±24 mA at VCC = 3.0 V |
| 7 | GND | Reference ground for all I/O and internal logic; must be low-impedance for signal integrity |
| 14 | VCC | Core supply input (1.2–3.6 V); powers internal logic and output drivers |
Key Features
| Feature | Design Value |
|---|---|
| 5 V tolerant I/O | Inputs and outputs withstand 0–5.5 V regardless of VCC (1.2–3.6 V), eliminating external level shifters in mixed-voltage designs |
| IOFF partial power-down | Automatically disables outputs and blocks backflow current when VCC = 0 V, enabling safe hot-swap and power sequencing |
| Schmitt-trigger inputs | Provides ≥0.3 V hysteresis at 3.3 V, allowing reliable operation with slow-rise signals from encoders, buttons, or long cables |
| JEDEC-compliant voltage ranges | Fully specified per JESD8-7A (1.65–1.95 V), JESD8-5A (2.3–2.7 V), and JESD8-C/JESD36 (2.7–3.6 V) for interoperability across logic families |
| Extended temperature range | Guaranteed operation from −40 °C to +125 °C, supporting industrial control, motor drives, and telecom infrastructure |
Applications
| Industrial Bus Interface | Microcontroller GPIO Expansion |
|---|---|
Use Scenario: Interfacing a 3.3 V ARM Cortex-M4 MCU to a legacy 5 V RS-485 transceiver or parallel EEPROM bus. IC Role / Device Role / Timing Role: Bidirectional voltage translator and bus driver, isolating MCU I/O from 5 V rail while maintaining signal integrity and timing margins. Use Value: Eliminates discrete level-shifter ICs and pull-up networks, reducing BOM count by 2–3 components per channel and cutting layout area by 35%. | Use Scenario: Expanding GPIO count on a space-constrained IoT sensor node using a 1.8 V SoC and external 5 V peripherals (e.g., display, relay driver). IC Role / Device Role / Timing Role: Non-inverting buffer with independent 3-state control per channel, enabling time-multiplexed peripheral access and dynamic bus arbitration. Use Value: Enables full 4-channel drive capability at 24 mA per output while maintaining <6 ns propagation delay, preserving real-time response in sensor fusion firmware. |
| Hot-Swappable Module Backplane | Test Equipment Signal Conditioning |
Use Scenario: Isolating control lines between a powered mainboard and unpowered daughter card during insertion/removal in modular test equipment. IC Role / Device Role / Timing Role: IOFF-enabled buffer preventing backfeed current from live 3.3 V backplane into unpowered module logic rails. Use Value: Meets IEC 61000-4-2 Level 4 ESD immunity and eliminates risk of latch-up or damage during hot-plug events. | Use Scenario: Driving multiple oscilloscope probe inputs or logic analyzer channels from a single FPGA output with variable load capacitance. IC Role / Device Role / Timing Role: Low-skew (<1.5 ns) quad buffer providing matched propagation delay and consistent edge rates across all four outputs. Use Value: Reduces inter-channel skew-induced timing jitter by >40% versus discrete MOSFET-based solutions, improving measurement accuracy at 100 MHz+ sampling rates. |
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 |
|---|---|---|---|
| SN74LVC125APWR (TI) | Identical electrical specs; same 1.2–3.6 V VCC, 5.5 V I/O tolerance, and IOFF functionality. Slightly higher max tpd (6.5 ns vs. 6.0 ns at 3.3 V). | Qualified to AEC-Q100 Grade 2 (−40 °C to +105 °C), not full −40 °C to +125 °C; lacks extended temp validation. | Select for automotive-adjacent industrial use where AEC-Q100 qualification adds value, accepting minor timing penalty. |
| 74AUP1G125GW,125 (Nexperia) | Single-channel variant in SC-70 package; lower ICC (0.5 μA typical), but no quad integration. VCC range narrower (0.8–3.6 V). | Requires four separate packages for equivalent functionality; increases board area and assembly cost by ~2.8×. | Select only when ultra-low static power (<1 μA) is critical and board space permits discrete implementation. |
Compared with SN74LVC125APWR, the 74LVC125APW,118 offers tighter timing at extended temperature and broader industrial qualification; versus 74AUP1G125GW,125, it delivers integrated quad functionality with 70% smaller footprint and unified enable control-critical for compact embedded controllers.
Availability
74LVC125APW,118 is available at Aetrix Electronics and suitable for industrial automation, test instrumentation, and embedded communications requiring stable component supply across extended temperature and mixed-voltage environments.
Supply support for 74LVC125APW,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 delivering high-performance, reliable logic, analog, and MOSFET solutions optimized for efficiency and miniaturization in industrial, automotive, and consumer applications.
The 74LVC series targets low-voltage, high-speed CMOS logic interoperability-designed specifically for seamless integration between legacy 5 V systems and modern sub-2 V microcontrollers in space- and power-constrained designs.
FAQ
Can 74LVC125APW,118 safely interface a 5 V sensor output to a 1.8 V microcontroller input?
Yes. Its 5.5 V tolerant inputs accept 5 V signals directly while operating at VCC = 1.8 V. The output voltage swing remains compatible with 1.8 V logic thresholds (VIH ≥ 1.17 V, VIL ≤ 0.63 V per datasheet Table 6), and Schmitt-trigger inputs reject noise from sensor cabling. No external resistors or clamps are required.
Does the IOFF feature protect against backfeed when only some supply rails are powered?
Yes. IOFF activates automatically when VCC = 0 V, disabling all outputs and blocking current flow from any I/O pin-even if other system rails (e.g., 5 V analog supply) remain active. This prevents damage during partial power-down scenarios such as firmware updates or modular subsystem replacement.
What is the maximum capacitive load this device can drive while maintaining timing specs?
Per datasheet Table 9, the device is characterized with 30 pF (VCC ≤ 2.7 V) and 50 pF (VCC ≥ 3.0 V) loads. At VCC = 3.3 V and Tamb = +125 °C, it maintains tpd ≤ 6.0 ns and tdis ≤ 7.0 ns into 50 pF. For loads >50 pF, propagation delay increases linearly (~0.02 ns/pF), but output drive strength (±24 mA) remains unchanged.
Is the TSSOP14 package (SOT402-1) compatible with standard reflow profiles for lead-free assembly?
Yes. The SOT402-1 package is qualified for JEDEC J-STD-020D moisture sensitivity level 1 (MSL-1), with peak reflow temperature up to 260 °C. Its thermal profile supports standard Pb-free SAC305 soldering, and the 0.65 mm pitch allows reliable placement with Class II pick-and-place equipment and Type 3 solder paste.
74LVC125APW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74LVC125APW,118 FAQ
1.How can I place an order for 74LVC125APW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC125APW,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 74LVC125APW,118 reliable?
The price and inventory of 74LVC125APW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC125APW,118 is usually 5 days.
3.What payment methods are accepted for 74LVC125APW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC125APW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC125APW,118?
74LVC125APW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC125APW,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 74LVC125APW,118?
For technical support, including 74LVC125APW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC125APW,118 requirements.
6.How does Aetrix verify that 74LVC125APW,118 is sourced from the original manufacturer or authorized distributors?
All 74LVC125APW,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 74LVC125APW,118 meets industry standards.
7.What is the process for return or replacement of 74LVC125APW,118?
All 74LVC125APW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC125APW,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 74LVC125APW,118 part is unused and in its original packaging.
Return procedure for 74LVC125APW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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