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onsemi 74LVX125MTC
- Part No.:
- 74LVX125MTC
- Manufacturer:
- onsemi
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVX125MTC.pdf
- Description:
- IC BUF NON-INVERT 3.6V 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,852
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Product details
Overview
74LVX125MTC from onsemi is a low-voltage quad non-inverting buffer IC with 3-STATE outputs, designed for level translation between 5 V and 3.3 V logic domains. It operates from 2.0 V to 3.6 V supply, tolerates input voltages up to 6.5 V, and delivers ±25 mA output drive at 3.3 V - enabling reliable interfacing in mixed-voltage embedded control systems.
For engineers reviewing the 74LVX125MTC datasheet, pinout, applications, or equivalent options, key selection criteria include its guaranteed simultaneous switching noise performance, 3.3 V-compatible 3-STATE timing (tPZH/tPLZ ≤ 13.0 ns at 3.3 V), input voltage translation capability, and TSSOP-14 WB package compatibility with high-density PCB layouts.
Technical Context
The 74LVX125MTC implements four independent CMOS buffer channels, each with an active-low 3-STATE enable (OE) controlling output impedance. Its input structure supports overvoltage-tolerant operation up to 6.5 V while powered from as low as 2.0 V, making it suitable for bidirectional voltage-level shifting without external components.
It meets stringent noise immunity requirements: dynamic VOL/VIL thresholds are specified at ±0.3 V and 0.8 V respectively under 50 pF load at 3.3 V, and propagation delay skew between outputs is limited to 1.5 ns - critical for synchronized data bus control in industrial microcontroller peripherals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 3.6 V - ensures compatibility with 3.3 V LVTTL and LVCMOS systems while supporting margin for brown-out conditions |
| Input Voltage Tolerance | −0.5 V to +6.5 V - enables direct connection to 5 V logic without level-shifter circuitry |
| Output Drive Current | ±25 mA - sufficient to drive standard 50 pF loads with defined rise/fall times and noise margins |
| Propagation Delay (3.3 V) | 4.4 ns (typ), 8.5 ns (max) at 15 pF - supports >100 MHz bus toggle rates in buffered address/data paths |
| 3-STATE Enable/Disable Time | tPZH/tPLZ ≤ 11.2 ns (max) at 3.3 V - minimizes bus contention windows during output state transitions |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial-grade embedded applications including motor control and sensor interfaces |
Pinout & Package
TSSOP-14 WB (Case 948G), Pb-free/halide-free, 4.9 mm × 4.4 mm × 1.2 mm body height, 0.65 mm pitch, 14-terminal surface-mount package.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | Input (A1–A4) | Non-inverting data inputs; tolerate 0–6.5 V regardless of VCC |
| 2, 5, 11, 14 | Output Enable (OE1–OE4) | Active-low controls 3-STATE output; OE = L enables buffer, OE = H disables (high-Z) |
| 3, 6, 12, 9 | Output (Y1–Y4) | Non-inverting buffered outputs; tri-state capable, driven to VCC or GND when enabled |
| 7 | GND | Ground reference for all I/O and internal logic |
| 14 | VCC | Positive supply rail (2.0–3.6 V); powers internal logic and output drivers |
Key Features
| Feature | Design Value |
|---|---|
| Input voltage level translation | Supports 5 V → 3.3 V interface without external resistors or translators |
| Guaranteed simultaneous switching noise immunity | Specified dynamic VOL/VIL limits ensure stable operation under heavy bus switching loads |
| Low quiescent current | ICC ≤ 40 µA max at 3.6 V - reduces system standby power in battery-backed controllers |
| Output skew control | Max 1.5 ns inter-output skew - preserves timing integrity across parallel data lines |
| Pb-free / halide-free packaging | TSSOP-14 WB meets RoHS and JEDEC MSL-1 moisture sensitivity requirements |
Applications
| Industrial PLC I/O Expansion | Microcontroller Bus Buffering |
|---|---|
Use Scenario: Isolating and driving 3.3 V MCU GPIOs to control legacy 5 V peripheral modules in programmable logic controllers. IC Role / Device Role / Timing Role: Level-translating buffer providing bidirectional voltage domain bridging with controlled 3-STATE timing. Use Value: Eliminates need for discrete resistor dividers or dedicated level shifters, reducing BOM count and layout area while maintaining noise-immune signal integrity. |
Use Scenario: Driving multiple parallel address/data lines from a low-power ARM Cortex-M3 microcontroller to external SRAM or FPGA configuration memory. IC Role / Device Role / Timing Role: Quad non-inverting buffer with fast enable/disable timing synchronizing bus access windows. Use Value: Enables deterministic bus arbitration with <11.2 ns output disable time, preventing data corruption during shared-memory read/write cycles. |
| Automotive Body Control Module | Medical Sensor Interface Hub |
Use Scenario: Interfacing 3.3 V CAN controller outputs to 5 V analog front-end circuits in vehicle body electronics. IC Role / Device Role / Timing Role: Voltage-tolerant buffer isolating logic domains while meeting AEC-Q100 temperature and ESD robustness requirements. Use Value: Provides overvoltage-safe signal conditioning without additional protection circuitry, improving reliability in noisy automotive environments. |
Use Scenario: Conditioning digital outputs from low-noise 24-bit ADCs before routing to 3.3 V processing units in portable diagnostic equipment. IC Role / Device Role / Timing Role: Low-noise, low-skew buffer preserving signal fidelity across multi-channel sensor data paths. Use Value: Maintains sub-nanosecond timing alignment between channels, critical for coherent sampling and phase-sensitive measurements. |
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 |
|---|---|---|---|
| SN74LVC125APW | Higher drive (±24 mA), wider VCC range (1.65–3.6 V), but only 5.5 V input tolerant - no 6.5 V overvoltage support | Lacks full 5 V→3.3 V translation headroom; requires external clamping if interfacing to 5 V sources | Select when operating strictly within 1.65–3.6 V and 5 V inputs are clamped or regulated |
| 74ALVC125MTCX | Faster propagation (2.8 ns typ at 3.3 V), same 6.5 V input tolerance, but higher ICC (max 100 µA) and narrower temp range (−40 to +85 °C same) | Better timing performance for high-speed buses, but increased static power consumption | Select when minimizing propagation delay is prioritized over ultra-low quiescent current |
Compared with SN74LVC125APW and 74ALVC125MTCX, the 74LVX125MTC uniquely combines 6.5 V input tolerance with sub-10 ns propagation and <40 µA ICC - making it optimal for cost-sensitive, mixed-voltage industrial interfaces where overvoltage resilience and low standby power are jointly required.
Availability
74LVX125MTC is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, microcontroller bus buffering, and automotive body control module designs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for 74LVX125MTC 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 technologies for automotive, industrial, cloud, medical, and IoT applications.
The LVX logic family, including the 74LVX125MTC, was engineered specifically for low-voltage, mixed-signal interfacing in space-constrained embedded systems - emphasizing voltage translation, noise immunity, and industrial temperature operation.
FAQ
What is the maximum input voltage the 74LVX125MTC can safely accept?
The 74LVX125MTC accepts DC input voltages from −0.5 V to +6.5 V, independent of VCC level. This allows direct connection to 5 V logic signals even when powered from 3.3 V or lower, eliminating external level-shifting components. The 6.5 V absolute maximum rating is validated per onsemi's Absolute Maximum Ratings table and applies across the full −40 °C to +85 °C operating range.
Does the 74LVX125MTC support true bidirectional level translation?
No - the 74LVX125MTC is a unidirectional non-inverting buffer with 3-STATE outputs. While its inputs tolerate 6.5 V, allowing 5 V → 3.3 V translation, it does not support reverse-direction (3.3 V → 5 V) signal transmission because outputs are limited to VCC-referenced swing. For bidirectional translation, a dedicated bus transceiver such as the 74LVC4245 must be used instead of the 74LVX125MTC.
What is the recommended decoupling for the 74LVX125MTC in high-speed applications?
A 0.1 µF ceramic capacitor placed as close as possible to the VCC pin (Pin 14) and GND pin (Pin 7) is required for stable operation. For systems with multiple 74LVX125MTC devices or high-frequency switching, add a bulk 4.7 µF tantalum or aluminum electrolytic capacitor near the power entry point. This mitigates supply rail collapse during simultaneous output transitions, which the 74LVX125MTC's guaranteed simultaneous switching noise specification assumes proper local decoupling.
Is the 74LVX125MTC pin-compatible with other TSSOP-14 quad buffer devices?
The 74LVX125MTC uses standard TSSOP-14 pinout per JEDEC MO-153, matching industry-standard quad buffer footprints. However, functional pin mapping differs: OE inputs are on Pins 2/5/11/14 (not grouped), and outputs are staggered (Pins 3/6/12/9). Substituting with SN74LVC125APW or 74ALVC125MTC requires verification of enable polarity and signal routing - the 74LVX125MTC is not a drop-in replacement despite identical package dimensions.
What is the thermal resistance (θJA) of the 74LVX125MTC in its TSSOP-14 WB package?
The 74LVX125MTC in TSSOP-14 WB (Case 948G) has a typical junction-to-ambient thermal resistance (θJA) of 130 °C/W under standard JEDEC JESD51-7 PCB conditions (single-layer copper, 1 in² pad). This value is derived from onsemi's package characterization data and confirms safe operation at full 833 mW power dissipation only with adequate board-level copper pour and airflow - most applications operate well below this limit due to low ICC and intermittent output loading.
74LVX125MTC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74LVX
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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-TSSOP
74LVX125MTC FAQ
1.How can I place an order for 74LVX125MTC through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVX125MTC 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 74LVX125MTC reliable?
The price and inventory of 74LVX125MTC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVX125MTC is usually 5 days.
3.What payment methods are accepted for 74LVX125MTC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVX125MTC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVX125MTC?
74LVX125MTC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVX125MTC 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 74LVX125MTC?
For technical support, including 74LVX125MTC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVX125MTC requirements.
6.How does Aetrix verify that 74LVX125MTC is sourced from the original manufacturer or authorized distributors?
All 74LVX125MTC 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 74LVX125MTC meets industry standards.
7.What is the process for return or replacement of 74LVX125MTC?
All 74LVX125MTC units undergo pre-shipment inspection (PSI). If there is an issue with 74LVX125MTC, 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 74LVX125MTC part is unused and in its original packaging.
Return procedure for 74LVX125MTC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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