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Nexperia USA Inc. 74LVTH125PW,118
- Part No.:
- 74LVTH125PW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVTH125PW,118.pdf
- Description:
- IC BUF NON-INVERT 3.6V 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,691
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Product details
Overview
74LVTH125PW,118 from Nexperia is a 3.3 V quad non-inverting 3-state buffer with bus-hold inputs and IOFF partial power-down protection. It provides +64 mA sink / –32 mA source drive, operates from 2.7 V to 3.6 V, tolerates 5.5 V inputs, and is specified for –40 °C to +85 °C. Used in 3.3 V system bus interfacing where hot-swap capability and unused-input stabilization are required.
For engineers reviewing the 74LVTH125PW,118 datasheet, 74LVTH125PW,118 pinout, 74LVTH125PW,118 application, or 74LVTH125PW,118 equivalent, key selection criteria include 3-state timing (tPZH ≤ 4.7 ns), bus-hold current (IBHH = –75 μA), IOFF leakage (< ±100 μA at VCC = 0 V), output drive asymmetry (+64/–32 mA), and TSSOP14 thermal profile.
Technical Context
This BiCMOS device implements four independent non-inverting buffers, each controlled by an active-low 3-state enable (nOE). Each input includes bus-hold circuitry that maintains logic state without external pull resistors, eliminating floating node risk.
The IOFF feature disables outputs during power-down, blocking backflow current when VCC = 0 V and I/O pins are biased to 4.5 V - critical for live insertion and multi-rail system interoperability. Inputs tolerate up to 5.5 V regardless of VCC, enabling direct TTL-level interfacing into 3.3 V domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V - ensures compatibility with 3.3 V ±10 % rails and robust operation across industrial temperature range. |
| Output Drive | +64 mA sink / –32 mA source - supports heavy capacitive loads and drives multiple TTL inputs without signal degradation. |
| Input Voltage Tolerance | Up to 5.5 V - enables direct connection to 5 V logic without level shifters in mixed-voltage systems. |
| Propagation Delay | tPLH/tPHL ≤ 4.0 ns at VCC = 3.6 V - meets high-speed bus timing budgets for 100+ MHz data transfer. |
| Bus-Hold Current | IBHH = –75 μA (HIGH), IBHL = +75 μA (LOW) - actively holds unused inputs at valid logic levels, removing need for external biasing. |
| IOFF Leakage | ±100 μA max at VCC = 0 V, VI/VO = 0–4.5 V - prevents damaging back-current during partial power-down sequences. |
| Operating Temperature | –40 °C to +85 °C - qualified for industrial-grade embedded control and communications equipment. |
Pinout & Package
TSSOP14 plastic thin shrink small outline package (SOT402-1); 14-lead, 4.4 mm body width, 0.65 mm pitch; exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | nOE (active LOW) | Independent 3-state enable per buffer - asserts high-impedance output when HIGH; supports selective bus isolation. |
| 2, 5, 9, 12 | nA (data input) | Buffer input with integrated bus-hold - retains last valid logic state when un-driven, preventing metastability. |
| 3, 6, 8, 11 | nY (data output) | Non-inverting buffered output with asymmetric drive strength - optimized for driving stubbed or loaded transmission lines. |
| 7 | GND | Ground reference for all internal circuitry and I/O - must be low-inductance connection for noise immunity. |
| 14 | VCC | Primary supply rail - decoupling capacitor (100 nF) required within 5 mm for stable high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| Quad 3-state buffer architecture | Four independent channels with individual OE control - enables granular bus segment management in multi-drop topologies. |
| Bus-hold input circuitry | Eliminates external pull-up/pull-down resistors on unused inputs - reduces BOM count and PCB area in space-constrained designs. |
| IOFF partial power-down | Blocks reverse current flow when VCC = 0 V and I/O pins are at 4.5 V - essential for hot-plug and power sequencing safety. |
| 5.5 V tolerant inputs | Interoperates directly with legacy 5 V TTL logic without level translators - simplifies migration from 5 V to 3.3 V systems. |
| Live insertion/extraction support | Guaranteed functionality during board insertion/removal under power - validated via JEDEC JESD78 latch-up > 500 mA. |
Applications
| Industrial PLC Backplane Interface | Embedded CPU Local Bus Extension |
|---|---|
Use Scenario: Interfacing a 3.3 V microcontroller to a 5 V legacy I/O module over a shared parallel bus. IC Role / Device Role / Timing Role: Level-translating buffer with 3-state control to isolate CPU during DMA cycles and prevent contention. Use Value: 5.5 V input tolerance eliminates discrete level shifters; bus-hold prevents floating address lines during reset. |
Use Scenario: Extending a 32-bit local bus between SoC and peripheral FPGA in a compact industrial controller. IC Role / Device Role / Timing Role: Signal repeater with matched propagation delay (≤4.0 ns) to maintain setup/hold margins across 10 cm traces. Use Value: +64 mA sink drive sustains signal integrity into 15 pF load per line; IOFF protects FPGA I/O during SoC power cycling. |
| Hot-Swappable Module Carrier | Automated Test Equipment (ATE) Pin Electronics |
Use Scenario: Supporting live insertion of daughter cards into a powered backplane with mixed-voltage slots. IC Role / Device Role / Timing Role: Isolation buffer with IOFF and bus-hold - maintains bus integrity while card powers up/down. Use Value: IOFF blocks backfeed current when VCC is absent; tPZL ≤ 4.7 ns ensures fast bus release during hot-swap transitions. |
Use Scenario: Driving DUT signals from 3.3 V pattern generator to 5 V test fixtures with bidirectional control. IC Role / Device Role / Timing Role: Bidirectional interface buffer with independent OE per channel - enables precise per-pin direction control. Use Value: Asymmetric drive (+64/–32 mA) matches fixture loading; 2.0 V VIH ensures reliable recognition of 3.3 V logic in noisy ATE environments. |
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 | Lower drive (+24/–24 mA); no bus-hold; IOFF not supported; 1.65–3.6 V supply. | Lacks bus-hold and IOFF - requires external pull resistors and cannot safely power down mid-bus. | Select only if system uses full power sequencing and has space for external biasing components. |
| 74ALVC125PW | Higher speed (tPD ≤ 3.2 ns); same drive (+24/–24 mA); no bus-hold; IOFF not supported. | Optimized for speed over robustness - unsuitable for hot-swap or partial power-down use cases. | Choose when propagation delay is primary constraint and bus stability during idle is managed elsewhere. |
Compared with SN74LVC125APW and 74ALVC125PW, the 74LVTH125PW,118 uniquely combines bus-hold, IOFF, and high sink drive - making it the only option among the three qualified for live-insertion and mixed-voltage bus holdover.
Availability
74LVTH125PW,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, embedded CPU bus extensions, hot-swappable carrier modules, and automated test equipment requiring stable component supply and long-term lifecycle assurance.
Supply support for 74LVTH125PW,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 logic, analog, and MOSFET solutions with focus on reliability, efficiency, and sustainability for industrial and consumer applications.
The 74LVTH series targets high-speed, robust 3.3 V bus interface applications - designed specifically for systems requiring bus-hold stability, IOFF safety, and mixed-voltage interoperability without external components.
FAQ
What is the maximum input voltage the 74LVTH125PW,118 can tolerate?
The device accepts input voltages up to +5.5 V regardless of VCC level, as confirmed in Table 4 (Limiting Values) and Table 5 (Recommended Operating Conditions). This allows direct interfacing with 5 V TTL outputs without level-shifting circuitry, provided VI remains within absolute maximum ratings and current limits are observed.
Does the 74LVTH125PW,118 support hot-plug operation?
Yes - it supports live insertion and extraction per datasheet Section 2. The IOFF circuit blocks backflow current when VCC = 0 V and I/O pins are biased to up to 4.5 V, and bus-hold maintains input states during power transition, satisfying JEDEC JESD78 Class II latch-up requirements (>500 mA).
How does bus-hold functionality eliminate external pull resistors?
Each input features internal feedback transistors that source or sink ~75 μA to retain the last valid logic state. When an input floats, IBHL (LOW) or IBHH (HIGH) actively holds it near GND or VCC - verified in Table 6 (Static Characteristics) - removing need for discrete 10–100 kΩ pull resistors in unused or intermittently driven nodes.
What is the worst-case 3-state disable time for the 74LVTH125PW,118?
The maximum tPLZ (LOW-to-OFF) and tPHZ (HIGH-to-OFF) are both 5.1 ns at VCC = 3.6 V, per Table 7 (Dynamic Characteristics). This defines the longest delay from OE transition to full high-impedance output, critical for bus arbitration timing in multi-master systems.
74LVTH125PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVTH
- 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:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74LVTH125PW,118 FAQ
1.How can I place an order for 74LVTH125PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVTH125PW,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 74LVTH125PW,118 reliable?
The price and inventory of 74LVTH125PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVTH125PW,118 is usually 5 days.
3.What payment methods are accepted for 74LVTH125PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVTH125PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVTH125PW,118?
74LVTH125PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVTH125PW,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 74LVTH125PW,118?
For technical support, including 74LVTH125PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVTH125PW,118 requirements.
6.How does Aetrix verify that 74LVTH125PW,118 is sourced from the original manufacturer or authorized distributors?
All 74LVTH125PW,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 74LVTH125PW,118 meets industry standards.
7.What is the process for return or replacement of 74LVTH125PW,118?
All 74LVTH125PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVTH125PW,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 74LVTH125PW,118 part is unused and in its original packaging.
Return procedure for 74LVTH125PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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