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onsemi 74LVX125MX
- Part No.:
- 74LVX125MX
- Manufacturer:
- onsemi
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74LVX125MX.pdf
- Description:
- IC BUF NON-INVERT 3.6V 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,144
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Product details
Overview
74LVX125MX from onsemi is a low-voltage quad non-inverting buffer IC with 3-STATE outputs, designed for level-shifting between 5 V and 3.3 V systems. It operates from 2.0 V to 3.6 V, supports ±25 mA output drive, delivers propagation delay as low as 4.4 ns (VCC = 3.3 V, CL = 15 pF), and tolerates input voltages up to 6.5 V - enabling robust 5 V-to-3 V interfacing in mixed-voltage digital logic systems.
For engineers reviewing the 74LVX125MX datasheet, pinout, applications, or equivalent options, key selection criteria include its guaranteed simultaneous switching noise performance, dynamic threshold compliance at −40°C to +85°C, 3-STATE enable timing (tPZH/tPLZ ≤ 13.0 ns), and TSSOP-14 WB package compatibility with high-density PCB layouts.
Technical Context
The 74LVX125MX implements four independent CMOS buffer channels, each with an active-low 3-STATE output enable (OE) control. Its input structure includes overvoltage-tolerant clamping diodes, allowing safe operation with 5 V inputs while powered from a 3.3 V supply.
It meets stringent noise immunity requirements per onsemi's NOISE CHARACTERISTICS table: dynamic VOL swing is limited to ±0.3 V (typical) under 50 pF load at 3.3 V, and it guarantees minimum HIGH-level dynamic VIH ≥ 2.0 V and maximum LOW-level dynamic VIL ≤ 0.8 V - ensuring reliable signal integrity in noisy industrial bus environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.0 V to 3.6 V - enables direct integration into 3.3 V logic rails without level translators |
| Input Voltage Range | −0.5 V to 6.5 V - allows safe connection to 5 V TTL/CMOS outputs without external protection |
| Output Drive | ±25 mA - sufficient to drive standard 50 Ω transmission lines or multiple 74-series inputs |
| Propagation Delay | 4.4 ns (typ), 8.5 ns (max) at 3.3 V/15 pF - supports >100 MHz data rates in point-to-point routing |
| 3-STATE Enable Time | 4.0 ns (typ), 7.5 ns (max) at 3.3 V/15 pF - ensures fast bus arbitration in shared-data-path applications |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded control and communications equipment |
| Input Capacitance | 4 pF (typ) - minimizes loading on upstream drivers and preserves signal edge rate |
Pinout & Package
TSSOP-14 WB (Case 948G), Pb-free/halide-free, 5.0 mm × 4.4 mm body, 0.65 mm pitch, 1.2 mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | Buffer Inputs (A1–A4) | Accept 5 V-tolerant logic signals; internally clamped to VCC/GND |
| 2, 5, 11, 14 | 3-STATE Output Enables (OE1–OE4) | Active-low control: OE = L enables output; OE = H forces high-impedance state |
| 3, 6, 12, 9 | Buffer Outputs (Y1–Y4) | Non-inverting, 3-STATE outputs capable of sourcing/sinking ±25 mA |
| 7 | GND | Ground reference for all I/O and internal circuitry |
| 14 | VCC | Primary power supply (2.0–3.6 V); powers all four buffers and OE logic |
Key Features
| Feature | Design Value |
|---|---|
| 5 V-to-3.3 V Input Translation | Enables direct interface between legacy 5 V microcontrollers and modern 3.3 V FPGAs or ASICs without external resistors or translators |
| Guaranteed Simultaneous Switching Noise (SSN) | Validated dynamic VOL/VIL limits ensure stable operation when multiple outputs switch concurrently on shared buses |
| Low Dynamic Threshold Performance | Meets VIH ≥ 2.0 V / VIL ≤ 0.8 V under 50 pF load, preventing false toggling in electrically noisy motor-control or power-conversion environments |
| High-Speed 3-STATE Control | tPHZ/tPLZ ≤ 13.0 ns (max) at 3.3 V enables sub-10 ns bus turnaround for bidirectional data protocols like I²C or custom parallel interfaces |
| Ultra-Low Input Leakage | IIN ≤ ±1.0 μA (max) at VCC = 3.6 V and VIN = 5.5 V - preserves signal integrity in high-impedance sensor multiplexing circuits |
Applications
| Industrial PLC Backplane Interface | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Interfacing 5 V sensor signal conditioners to a 3.3 V ARM-based PLC CPU via a shared parallel data bus. IC Role / Device Role / Timing Role: Quad buffer provides isolated, level-shifted, and 3-STATE-controlled data path segments to prevent bus contention during firmware updates. Use Value: Eliminates need for discrete level-shifter ICs or resistor-divider networks, reducing BOM count and layout area by 30% in space-constrained backplane modules. | Use Scenario: Driving multiple 3.3 V CAN transceiver enable pins from a 5 V microcontroller in a vehicle body control unit. IC Role / Device Role / Timing Role: Non-inverting buffer with 3-STATE output isolates MCU GPIOs from transceiver power domains and enables synchronized wake-up sequencing. Use Value: Input overvoltage tolerance prevents latch-up during battery transients; tPZH ≤ 7.5 ns ensures deterministic CAN bus initialization within 100 μs. |
| Medical Diagnostic Equipment Data Acquisition | Test & Measurement Instrumentation |
Use Scenario: Isolating analog-to-digital converter (ADC) control lines from a 5 V FPGA configuration interface in a portable ultrasound front-end. IC Role / Device Role / Timing Role: Provides clean, noise-immune, 3-STATE-enabled strobe and clock enable signals to ADCs operating at 3.3 V. Use Value: Guaranteed SSN performance suppresses coupling-induced offset errors in 16-bit ADC sampling, improving effective resolution by ≥1 LSB. | Use Scenario: Multiplexing multiple 3.3 V logic analyzers onto a common 5 V test fixture bus using shared address/data lines. IC Role / Device Role / Timing Role: Acts as direction-controlled bus driver with precise 3-STATE timing to eliminate glitches during bidirectional probe switching. Use Value: Propagation skew <1.5 ns across all four channels ensures setup/hold time margins are maintained across 100+ MHz digital capture windows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad buffer with 3-STATE output applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC125APW | Higher ICC (max 10 μA vs. 4.0 μA), same 3.3 V VCC range, but only 5.5 V input tolerant (not 6.5 V) | Lacks overvoltage margin for legacy 5 V systems with rail overshoot; unsuitable where VI > 5.5 V occurs | Select when strict 5.5 V input ceiling is acceptable and lower quiescent current is not required |
| 74ALVC125MTCX | Faster tPLH (3.2 ns typ at 3.3 V), but higher IOZ (±10 μA max) and no guaranteed SSN specs | Better speed for high-frequency clock distribution, but less robust in electrically noisy industrial settings | Select when propagation delay dominates design priority and noise immunity is secondary |
Compared with SN74LVC125APW and 74ALVC125MTCX, the 74LVX125MX uniquely combines 6.5 V input tolerance, guaranteed SSN performance, and ultra-low ICC (4.0 μA max), making it optimal for mixed-voltage industrial control where reliability under voltage transients and low static power are critical.
Availability
74LVX125MX is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, medical diagnostic data acquisition systems, and test & measurement instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVX125MX 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient innovation for automotive, industrial, cloud, and IoT applications.
The LVX logic family - including the 74LVX125MX - was engineered specifically for low-voltage, mixed-signal interfacing in industrial and automotive systems where 5 V legacy components coexist with 3.3 V microcontrollers and FPGAs.
FAQ
What is the maximum input voltage rating for the 74LVX125MX?
The 74LVX125MX supports DC input voltages from −0.5 V to +6.5 V, independent of VCC. This overvoltage tolerance allows safe interfacing with 5 V logic sources even when powered from a 3.3 V supply, eliminating the need for external clamping or level-shifting circuitry in mixed-voltage designs.
Does the 74LVX125MX support operation at 2.5 V supply?
Yes, the 74LVX125MX is fully specified for operation across 2.0 V to 3.6 V. At VCC = 2.5 V, VIH is guaranteed ≥1.7 V and VIL ≤0.7 V, and propagation delay remains within datasheet limits (tPLH/tPHL ≤13.5 ns at CL = 50 pF), making it suitable for 2.5 V system integration where compatible logic families are used.
What is the 3-STATE output off-state current (IOZ) specification for the 74LVX125MX?
The 74LVX125MX specifies IOZ ≤ ±2.5 μA (max) at VCC = 3.6 V and TA = −40°C to +85°C, measured with inputs at VIL or VIH and outputs forced to VCC or GND. This ultra-low leakage ensures minimal bus loading during high-impedance states, critical for maintaining signal integrity in multi-drop or capacitively loaded bus architectures.
Is the 74LVX125MX pin-compatible with other 74LVX125 variants?
Yes, the 74LVX125MX shares identical pinout and function with all TSSOP-14 packaged 74LVX125 variants (e.g., 74LVX125MTCX). Pin assignments for inputs (A1–A4), outputs (Y1–Y4), and 3-STATE enables (OE1–OE4) match exactly across onsemi's LVX125 product family, enabling drop-in replacement within the same package footprint.
How does the 74LVX125MX handle simultaneous switching noise (SSN)?
The 74LVX125MX is explicitly characterized for SSN: dynamic VOL is guaranteed ≤0.8 V (max) and ≥−0.8 V (min) at 3.3 V/50 pF, and dynamic VIH/VIL thresholds are validated under simultaneous switching conditions. These specifications ensure reliable logic-level interpretation even when all four outputs switch concurrently on a shared bus.
74LVX125MX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74LVX
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 4mA, 4mA
- Voltage - Supply:
- 2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
74LVX125MX FAQ
1.How can I place an order for 74LVX125MX through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVX125MX 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 74LVX125MX reliable?
The price and inventory of 74LVX125MX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVX125MX is usually 5 days.
3.What payment methods are accepted for 74LVX125MX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVX125MX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVX125MX?
74LVX125MX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVX125MX 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 74LVX125MX?
For technical support, including 74LVX125MX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVX125MX requirements.
6.How does Aetrix verify that 74LVX125MX is sourced from the original manufacturer or authorized distributors?
All 74LVX125MX 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 74LVX125MX meets industry standards.
7.What is the process for return or replacement of 74LVX125MX?
All 74LVX125MX units undergo pre-shipment inspection (PSI). If there is an issue with 74LVX125MX, 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 74LVX125MX part is unused and in its original packaging.
Return procedure for 74LVX125MX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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