My Inquiry
My Account
NXP Semiconductors 74LV125N,112
- Part No.:
- 74LV125N,112
- Manufacturer:
- NXP Semiconductors
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
74LV125N,112.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,258
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74LV125N,112 from NXP Semiconductors is a quad non-inverting 3-state buffer/line driver in a 14-lead DIP package, operating from 1.0 V to 5.5 V supply, with −40 °C to +125 °C temperature range, TTL-input compatibility at 2.7–3.6 V, and propagation delay as low as 9 ns at 3.3 V. It serves signal routing and bus isolation in industrial control backplanes and legacy interface adapters.
For engineers reviewing the 74LV125N,112 datasheet, 74LV125N,112 pinout, 74LV125N,112 application, or 74LV125N,112 equivalent, key selection criteria include its wide voltage range (1.0–5.5 V), guaranteed 3-state output behavior across full temp range, input transition rate limits per VCC, and DIP14 through-hole compatibility for prototyping and repair.
Technical Context
The 74LV125N,112 implements four independent CMOS buffer channels, each with active-low 3-state enable (nOE) controlling high-impedance output (Z) when asserted. Its Si-gate CMOS process ensures pin and functional compatibility with 74HC125 and 74HCT125 while supporting lower-voltage operation down to 1.0 V.
Input thresholds are specified per VCC band (e.g., VIH = 2.0 V at VCC = 2.7–3.6 V), and dynamic performance includes tpd = 9 ns (typ), ten = 14 ns (typ), and tdis = 14 ns (typ) at VCC = 3.3 V with CL = 15 pF - all validated over −40 °C to +125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.0 V to 5.5 V - supports mixed-voltage system interfacing and brown-out tolerant operation |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive and industrial ambient environments |
| Propagation Delay (tpd) | 9 ns (typ) at VCC = 3.3 V, CL = 15 pF - enables reliable timing in 100 MHz bus applications |
| Enable/Disable Time | 14 ns (typ) at VCC = 3.3 V - ensures clean bus turnaround without contention in shared-data systems |
| Output Drive Strength | ±8 mA at VOH/VOL = 2.4 V/0.2 V (VCC = 3.0 V) - sufficient for driving 50 pF loads across PCB traces |
| Input Threshold Compatibility | TTL-level inputs accepted at VCC = 2.7–3.6 V - allows direct connection to legacy 5 V logic without level shifters |
| ESD Protection | HBM > 2000 V, MM > 200 V - meets IEC61000-4-2 pre-compliance for board-level robustness |
Pinout & Package
DIP14 plastic dual in-line package (300 mil), 14-lead through-hole format with 2.54 mm pitch; suitable for breadboarding, wave soldering, and legacy PCB replacement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | nOE (active LOW) | Independent 3-state enable per buffer channel; drives outputs to high-Z when HIGH |
| 2, 5, 9, 12 | nA (input) | Non-inverting data input for corresponding buffer; accepts 1.0–5.5 V logic levels |
| 3, 6, 8, 11 | nY (output) | Buffered non-inverting output; sinks or sources up to ±8 mA at 3.0 V |
| 7 | GND | Ground reference for all inputs, outputs, and internal circuitry |
| 14 | VCC | Single-supply rail; powers all four buffers and enables voltage-scalable operation |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 1.0 V to 5.5 V operation - eliminates need for separate voltage rails in multi-supply systems |
| TTL Input Compatibility | Valid VIH/VIL thresholds at VCC = 2.7–3.6 V - interoperates with 5 V microcontrollers and peripherals |
| High-Temp Operation | Full functionality from −40 °C to +125 °C - certified for extended thermal cycling in industrial modules |
| Low Ground Bounce | < 0.8 V typical at VCC = 3.3 V - reduces noise coupling into adjacent analog or RF sections |
| Controlled Output Undershoot | VOH undershoot > 2 V at VCC = 3.3 V - prevents false triggering of downstream Schmitt-trigger inputs |
Applications
| Industrial Backplane Bus Isolation | Legacy Microcontroller Interface Adapter |
|---|---|
Use Scenario: Isolating multiple 8-bit data buses on a DIN-rail mounted PLC backplane where hot-swap and fault containment are required. IC Role / Device Role / Timing Role: Quad 3-state buffer providing directional, enable-controlled signal pass-through between isolated bus segments. Use Value: Prevents bus contention during module insertion/removal; 125 °C rating ensures reliability in enclosed enclosures with limited airflow. |
Use Scenario: Interfacing a 3.3 V ARM Cortex-M0+ MCU to legacy 5 V peripheral ICs (e.g., parallel EEPROMs, LCD controllers) using level-tolerant signaling. IC Role / Device Role / Timing Role: Voltage-flexible buffer translating logic levels while maintaining timing integrity across mixed-VCC domains. Use Value: Eliminates discrete level shifters; TTL-compatible inputs accept 5 V signals directly at VCC = 3.3 V without external clamping. |
| Automotive Diagnostic Tool Interface | Test Equipment Signal Routing Matrix |
Use Scenario: Enabling/disabling CAN transceiver TX/RX paths and sensor analog front-end lines in an OBD-II diagnostic tool operating in vehicle cabin environments. IC Role / Device Role / Timing Role: 3-state gate controlling bidirectional signal flow between microcontroller GPIO and external connectors. Use Value: −40 °C to +125 °C qualification matches automotive ambient specs; low ground bounce minimizes EMI in sensitive measurement circuits. |
Use Scenario: Constructing reconfigurable signal paths in automated test equipment (ATE) where multiple DUTs share common stimulus/response resources. IC Role / Device Role / Timing Role: Logic-controlled bus switch enabling one-to-many or many-to-one routing without contention. Use Value: 9 ns propagation delay supports 100 Mbps digital pattern rates; DIP14 package simplifies manual jumper-based matrix configuration. |
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 |
|---|---|---|---|
| 74LV125D,118 | SO14 surface-mount package; identical electrical specs and temp range | Requires reflow assembly; unsuitable for hand-soldered prototypes or field repairs | Select when board space is constrained and automated assembly is used. |
| SN74LVC125APWR | TI part in TSSOP14; VCC range 1.65–3.6 V only; higher drive (24 mA) but narrower voltage window | Not usable below 1.65 V or above 3.6 V; incompatible with 5 V-tolerant designs | Choose only for 3.3 V-only systems requiring higher sink/source current. |
Compared with 74LV125N,112, the 74LV125D,118 offers identical functionality in a smaller footprint but sacrifices through-hole serviceability, while SN74LVC125APWR trades voltage flexibility for higher drive strength - making 74LV125N,112 optimal for mixed-voltage, repairable, or high-temp legacy integration.
Availability
74LV125N,112 is available at Aetrix Electronics and suitable for industrial backplane bus isolation, legacy microcontroller interface adaptation, and automotive diagnostic tool interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LV125N,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 74LV125N,112 belongs to NXP's LV logic family, designed specifically for low-voltage, high-noise-immunity digital interfacing in harsh environments - emphasizing wide VCC tolerance, robust ESD protection, and extended temperature operation.
FAQ
What is the maximum supply voltage rating for the 74LV125N,112?
The absolute maximum supply voltage (VCC) for the 74LV125N,112 is +7.0 V, but recommended operation is limited to 1.0 V to 5.5 V per the datasheet. Exceeding 5.5 V risks permanent damage even if current is limited, and the device is not characterized or guaranteed beyond that range. Always refer to Table 4 (Limiting Values) and Table 5 (Recommended Operating Conditions) in the official NXP 74LV125N,112 datasheet for safe design margins.
Does the 74LV125N,112 support true 5 V TTL input levels?
Yes - the 74LV125N,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 allows direct connection to standard 5 V TTL outputs without level shifting. However, at VCC = 5.0 V or 5.5 V, input thresholds scale with VCC (VIH = 0.7×VCC), so 5 V TTL signals may not meet VIH reliably unless VCC is reduced or a compatible input stage is used. The 74LV125N,112 specification explicitly confirms this TTL compatibility band.
Can the 74LV125N,112 be used in a 1.2 V system?
Yes, the 74LV125N,112 is fully specified and guaranteed for operation at VCC = 1.2 V across −40 °C to +125 °C, with static characteristics including VIH = 0.9 V and VIL = 0.3 V. Propagation delay increases to 55 ns (typ), and output drive weakens, but logic functionality remains intact. This makes the 74LV125N,112 suitable for ultra-low-power subsystems where other LV logic families may not be rated below 1.65 V.
What is the thermal derating behavior of the 74LV125N,112 in DIP14 package?
For the DIP14 package (SOT27-1), total power dissipation (Ptot) derates linearly above 70 °C at 12 mW/K. At 125 °C ambient, the maximum allowable Ptot drops to approximately 120 mW (750 mW − (125 − 70) × 12). This derating applies regardless of whether power is drawn from VCC or GND pins and must be accounted for in thermally constrained enclosures. The 74LV125N,112 datasheet specifies this in Table 4 (Limiting Values) footnote [2].
Is the 74LV125N,112 pin-compatible with the 74HC125?
Yes - the 74LV125N,112 is explicitly stated in its NXP datasheet to be pin and function compatible with both 74HC125 and 74HCT125. Pin numbering, signal names (1A/1Y/1OE, etc.), and truth table behavior match exactly. However, note that the 74LV125N,112 operates down to 1.0 V and exhibits different DC and AC characteristics (e.g., lower drive, faster tpd at 3.3 V), so direct substitution requires verification of voltage and timing margins in the target application.
74LV125N,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LV
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
- 14-DIP
74LV125N,112 FAQ
1.How can I place an order for 74LV125N,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LV125N,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 74LV125N,112 reliable?
The price and inventory of 74LV125N,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV125N,112 is usually 5 days.
3.What payment methods are accepted for 74LV125N,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV125N,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LV125N,112?
74LV125N,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LV125N,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 74LV125N,112?
For technical support, including 74LV125N,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV125N,112 requirements.
6.How does Aetrix verify that 74LV125N,112 is sourced from the original manufacturer or authorized distributors?
All 74LV125N,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 74LV125N,112 meets industry standards.
7.What is the process for return or replacement of 74LV125N,112?
All 74LV125N,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LV125N,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 74LV125N,112 part is unused and in its original packaging.
Return procedure for 74LV125N,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LV125N,112 Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
