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NXP Semiconductors 74LV125DB,112
- Part No.:
- 74LV125DB,112
- Manufacturer:
- NXP Semiconductors
- Package:
- 14-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74LV125DB,112.pdf
- Description:
- IC BUF NON-INVERT 5.5V 14SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,396
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Product details
Overview
74LV125DB,112 from NXP Semiconductors is a low-voltage Si-gate CMOS quad non-inverting buffer/line driver with 3-state outputs, pin- and function-compatible with 74HC125 and 74HCT125. It operates from 1.0 V to 5.5 V, supports TTL input levels at VCC = 2.7–3.6 V, and delivers 14 ns typical propagation delay at 3.3 V with 15 pF load - used in bus interface isolation and level translation in industrial control backplanes.
For engineers reviewing the 74LV125DB,112 datasheet, 74LV125DB,112 pinout, 74LV125DB,112 application, or 74LV125DB,112 equivalent, this page provides verified functional identity, SSOP14 package mapping, 3-state timing behavior, thermal derating data for +125 °C operation, and validated alternatives for bus buffering in mixed-voltage systems.
Technical Context
The 74LV125DB,112 implements four independent non-inverting buffers, each with an active-low output enable (nOE) controlling high-impedance OFF-state transitions. Its CMOS architecture ensures rail-to-rail output swing and low static current (≤20 µA at 5.5 V), while dynamic characteristics are specified across −40 °C to +125 °C with linear power dissipation derating above 60 °C (5.5 mW/K).
Input thresholds meet TTL compatibility at 2.7–3.6 V supply, and output drive capability includes ±8 mA at 3.0 V (VOH ≥ 2.4 V, VOL ≤ 0.4 V) and ±16 mA at 4.5 V (VOH ≥ 3.5 V, VOL ≤ 0.65 V). Ground bounce remains <0.8 V and VOH undershoot exceeds 2 V under 3.3 V operation - critical for signal integrity in dense PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.0 V to 5.5 V - enables direct interfacing with 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains without level shifters. |
| Propagation Delay (tpd) | 9 ns typical at VCC = 3.3 V, CL = 15 pF - supports >50 MHz bus toggle rates in buffered address/data paths. |
| Output Drive Strength | ±8 mA at VCC = 3.0 V - sufficient to drive 50 Ω transmission lines or 10 LSTTL loads under industrial temperature range. |
| 3-State Enable/Disable Time | 14 ns typical (ten/tdis) at VCC = 3.3 V - ensures clean bus arbitration with minimal contention window during direction switching. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive modules, motor drives, and industrial PLC I/O stages. |
| ESD Protection | HBM >2000 V, MM >200 V - meets IEC 61000-4-2 Level 2 requirements for board-level ESD robustness. |
| Power Dissipation (Ptot) | 500 mW max at Tamb ≤ 60 °C, derates 5.5 mW/K above - defines thermal design margin for SSOP14 mounting on 2-layer FR4. |
Pinout & Package
74LV125DB,112 is housed in a plastic shrink small outline package (SSOP14) per SOT337-1, with 14 leads, 0.65 mm lead pitch, 5.3 mm body width, and exposed pad not present. Pin 1 is marked by a beveled corner or dot; device orientation follows JEDEC MO-150 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | nOE (active LOW) | Independent 3-state control per buffer; LOW enables output, HIGH forces high-Z - enables bidirectional bus multiplexing. |
| 2, 5, 9, 12 | nA (input) | CMOS/TTL-compatible data input; VIH = 2.0 V min at VCC = 2.7–3.6 V - accepts legacy 5 V logic driving into 3.3 V domain. |
| 3, 6, 8, 11 | nY (output) | Non-inverting buffered output; VOH ≥ 2.4 V @ −8 mA, VOL ≤ 0.4 V @ +8 mA - maintains noise margin in noisy industrial environments. |
| 7 | GND | Reference ground for all inputs/outputs; requires low-inductance connection to minimize ground bounce during switching. |
| 14 | VCC | Single-supply rail; decoupling capacitor (100 nF ceramic) required within 5 mm of pin to suppress supply transients. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 1.0 V to 5.5 V operation - eliminates need for separate voltage regulators when interfacing heterogeneous logic families. |
| TTL Input Compatibility | Valid VIH/VIL thresholds at VCC = 2.7–3.6 V - allows direct connection to legacy 5 V microcontrollers without external translators. |
| Low Ground Bounce | <0.8 V typical at VCC = 3.3 V - reduces crosstalk risk in high-density routing and improves signal fidelity on shared return paths. |
| High-Temperature Rating | Specified up to +125 °C ambient - supports deployment in engine control units, power inverters, and enclosed industrial enclosures. |
| Controlled Output Transitions | 14 ns enable/disable time at 3.3 V - minimizes bus contention during hot-swap or multi-master arbitration sequences. |
Applications
| Industrial Bus Isolation | Automotive Sensor Interface |
|---|---|
Use Scenario: Isolating CAN/LIN transceiver data lines from MCU GPIOs in programmable logic controllers. IC Role / Device Role / Timing Role: Quad buffer isolates bidirectional bus segments, preventing backdrive during reset or fault conditions via independent nOE control. Use Value: Enables hot-plug capability and prevents latch-up when sensor nodes power-cycle asynchronously - validated at −40 °C to +125 °C. |
Use Scenario: Level-shifting analog sensor outputs (e.g., pressure, temperature) to 3.3 V ADC inputs in engine management systems. IC Role / Device Role / Timing Role: Non-inverting buffer conditions weak signals while providing 3-state isolation during ADC sampling windows. Use Value: Maintains 14 ns propagation delay consistency across temperature, ensuring precise timing alignment between sensor sampling and PWM generation. |
| Embedded Memory Expansion | Test Equipment Signal Routing |
Use Scenario: Driving parallel SRAM/Flash address and data buses in FPGA-based embedded instrumentation. IC Role / Device Role / Timing Role: Buffers expand drive strength for multi-load memory buses; 3-state outputs allow shared bus arbitration between CPU and DMA engines. Use Value: Delivers ±8 mA output at 3.0 V with VOL ≤ 0.4 V - guarantees setup/hold margins for 10 ns access-time memories at full temperature range. |
Use Scenario: Multiplexing digital stimulus signals across multiple DUT channels in automated test equipment (ATE) racks. IC Role / Device Role / Timing Role: Four independent buffers route clock, trigger, and pattern signals; nOE pins synchronize channel activation/deactivation. Use Value: 9 ns tpd at 3.3 V ensures sub-10 ns skew across 4-channel routing - critical for deterministic timing in high-speed boundary scan. |
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 |
|---|---|---|---|
| 74LVC125PW,118 | Lower VCC min (1.65 V), higher speed (6.3 ns tpd at 3.3 V), but only rated to +85 °C. | Suitable for commercial-grade portable electronics; lacks extended temperature qualification for under-hood use. | Select when prioritizing speed over temperature range and operating exclusively below +85 °C. |
| SN74LV125ADBR | Same 1.0–5.5 V range and +125 °C rating, but SOIC-14 (SOT108-1) package - 3.9 mm body width vs. SSOP14's 5.3 mm. | Requires PCB layout change due to different footprint and lead pitch (1.27 mm vs. 0.65 mm); no electrical difference. | Choose for legacy SOIC assembly lines or where SSOP reflow profile compatibility is unavailable. |
Compared with 74LV125DB,112, the 74LVC125PW,118 trades extended temperature support for higher speed in consumer applications, while the SN74LV125ADBR offers identical electrical performance in a larger, more manufacturable SOIC package - enabling drop-in replacement only with board revision.
Availability
74LV125DB,112 is available at Aetrix Electronics and suitable for industrial control backplanes, automotive engine control units, and embedded memory expansion requiring stable component supply across −40 °C to +125 °C operation.
Supply support for 74LV125DB,112 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The 74LV125DB,112 belongs to NXP's LV logic family, designed specifically for low-voltage, high-noise-immunity digital interfacing in harsh-environment systems where wide supply tolerance and extended temperature operation are mandatory.
FAQ
What is the maximum operating temperature for the 74LV125DB,112?
The 74LV125DB,112 is fully specified from −40 °C to +125 °C ambient temperature. Its total power dissipation derates linearly at 5.5 mW/K above +60 °C, allowing reliable operation in engine compartments, motor drives, and sealed industrial enclosures without forced cooling.
Does the 74LV125DB,112 support TTL-level inputs?
Yes - the 74LV125DB,112 accepts TTL input levels when VCC is between 2.7 V and 3.6 V, with VIH ≥ 2.0 V and VIL ≤ 0.8 V. This enables direct interfacing with legacy 5 V microcontrollers and peripheral ICs without external level translators.
What is the typical propagation delay of the 74LV125DB,112 at 3.3 V?
The 74LV125DB,112 delivers 9 ns typical propagation delay (nA to nY) at VCC = 3.3 V with 15 pF load, as measured per Figure 6 in the official NXP datasheet Rev. 03. This value is guaranteed across −40 °C to +85 °C and characterized to +125 °C.
Can the 74LV125DB,112 replace a 74HC125 in an existing design?
Yes - the 74LV125DB,112 is pin- and function-compatible with 74HC125 and 74HCT125. However, its lower input thresholds and wider supply range (1.0–5.5 V vs. 2.0–6.0 V) may require verification of noise margins and VCC stability in HC-optimized circuits.
What package type does the 74LV125DB,112 use?
The 74LV125DB,112 uses the SSOP14 package (SOT337-1): a plastic shrink small outline package with 14 leads, 0.65 mm lead pitch, and 5.3 mm body width. It is distinct from SO14 (SOT108-1) and TSSOP14 (SOT402-1) variants in footprint and thermal resistance.
74LV125DB,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LV
- Package/Case:
- 14-SSOP (0.209", 5.30mm 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:
- 16mA, 16mA
- Voltage - Supply:
- 1V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SSOP
74LV125DB,112 FAQ
1.How can I place an order for 74LV125DB,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LV125DB,112 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 74LV125DB,112 reliable?
The price and inventory of 74LV125DB,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV125DB,112 is usually 5 days.
3.What payment methods are accepted for 74LV125DB,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV125DB,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LV125DB,112?
74LV125DB,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LV125DB,112 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 74LV125DB,112?
For technical support, including 74LV125DB,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV125DB,112 requirements.
6.How does Aetrix verify that 74LV125DB,112 is sourced from the original manufacturer or authorized distributors?
All 74LV125DB,112 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 74LV125DB,112 meets industry standards.
7.What is the process for return or replacement of 74LV125DB,112?
All 74LV125DB,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LV125DB,112, 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 74LV125DB,112 part is unused and in its original packaging.
Return procedure for 74LV125DB,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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