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Nexperia USA Inc. 74VHCT125PW,118
- Part No.:
- 74VHCT125PW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74VHCT125PW,118.pdf
- Description:
- IC BUF NON-INVERT 5.5V 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:37,126
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Product details
Overview
74VHCT125PW,118 from Nexperia is a quad non-inverting 3-state buffer/line driver IC designed for bus interface and signal isolation in digital systems. It operates at 4.5–5.5 V, delivers propagation delay as low as 3.0 ns (VCC = 5 V, CL = 15 pF), supports -40 °C to +125 °C ambient range, and features TTL-compatible input thresholds (VIH = 2.0 V, VIL = 0.8 V). It is used in industrial control backplanes and microcontroller I/O expansion.
For engineers reviewing the 74VHCT125PW,118 datasheet, 74VHCT125PW,118 pinout, 74VHCT125PW,118 application, or 74VHCT125PW,118 equivalent, key selection considerations include TTL-level input compatibility, 3-state output timing (enable/disable times ≤ 9.5 ns), thermal performance in TSSOP14 package, and guaranteed operation across extended temperature range.
Technical Context
This device implements four independent non-inverting buffers, each with active-low 3-state enable (nOE) controlling high-impedance output. All inputs accept voltages up to 5.5 V regardless of VCC, enabling mixed-voltage interfacing.
The logic function follows standard truth table: when nOE = LOW, nY = nA; when nOE = HIGH, nY = high-impedance. Propagation delay, enable time, and disable time are fully characterized across voltage (4.5–5.5 V) and temperature (-40 °C to +125 °C) ranges per JEDEC JESD7-A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage (VCC) | 4.5–5.5 V - Ensures compatibility with 5 V TTL and mixed-supply systems without level shifters. |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - Guarantees reliable recognition of standard TTL logic levels. |
| Propagation Delay (tpd) | 3.0 ns typ (VCC = 5 V, CL = 15 pF) - Enables use in high-speed data buses up to ~100 MHz. |
| Enable Time (ten) | 4.9 ns typ (VCC = 5 V, CL = 50 pF) - Supports fast bus arbitration and dynamic output control. |
| Output Drive | ±8 mA (VOH/VOL @ VCC = 4.5 V) - Sufficient to drive 50 pF loads and standard CMOS/TTL fan-out. |
| Operating Temperature | -40 °C to +125 °C - Validated for industrial and under-hood automotive-adjacent environments. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - Reduces risk of handling damage during assembly and field service. |
Pinout & Package
TSSOP14 plastic thin shrink small outline package (SOT402-1); 14-lead, 4.4 mm body width, 0.65 mm pitch; thermally enhanced for surface-mount reliability in dense PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | nOE (1OE–4OE) | Active-low 3-state enable inputs - Simultaneous or individual control of each buffer's output impedance. |
| 2, 5, 9, 12 | nA (1A–4A) | Non-inverting data inputs - Accept TTL- or CMOS-level signals up to 5.5 V independently of VCC. |
| 3, 6, 8, 11 | nY (1Y–4Y) | 3-state buffered outputs - Drive buses directly; high-Z state prevents contention during shared-line operation. |
| 7 | GND | Ground reference (0 V) - Required return path for all internal logic and output current. |
| 14 | VCC | Positive supply - Powers all four buffers; decoupling capacitor recommended adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH = 2.0 V min / VIL = 0.8 V max - Eliminates need for external level translation when interfacing with legacy 5 V TTL logic. |
| Overvoltage-tolerant inputs | Accepts VI up to 5.5 V regardless of VCC - Enables safe connection to higher-voltage signal sources without clamping diodes. |
| Balanced propagation delays | tpd variation < 1.5 ns across channels - Critical for skew-sensitive parallel bus applications like address/data latching. |
| High-impedance output control | Enable/disable times ≤ 9.5 ns (max) - Supports rapid bus turnaround in bidirectional communication protocols. |
| Extended temperature range | Specified from -40 °C to +125 °C - Qualified for deployment in industrial automation, power electronics, and transportation infrastructure. |
Applications
| Industrial PLC Backplane Interface | Microcontroller GPIO Expansion |
|---|---|
Use Scenario: Isolating and driving multiple I/O lines between CPU module and remote I/O racks in programmable logic controllers. IC Role / Device Role / Timing Role: Quad buffer provides direction-controlled signal routing; 3-state outputs prevent bus contention during hot-swap or reconfiguration. Use Value: Enables deterministic timing with sub-10 ns enable/disable transitions, ensuring cycle-accurate synchronization across distributed I/O modules. |
Use Scenario: Expanding limited GPIO count on ARM Cortex-M or RISC-V microcontrollers for peripheral control and sensor readout. IC Role / Device Role / Timing Role: Acts as bi-directional bus driver with independent enable control per channel, supporting multiplexed address/data paths. Use Value: TTL-compatible inputs allow direct connection to MCU pins without level-shifting; low propagation delay preserves timing margins in real-time firmware loops. |
| Legacy System Bus Buffering | Test Equipment Signal Conditioning |
Use Scenario: Interfacing modern FPGA-based controllers with aging 5 V TTL bus standards (e.g., ISA, VME, or custom parallel interfaces). IC Role / Device Role / Timing Role: Provides voltage-level bridging and fan-out amplification while maintaining signal integrity on long traces. Use Value: Input overvoltage tolerance (up to 5.5 V) protects against overshoot on legacy buses; balanced delays minimize skew-induced setup/hold violations. |
Use Scenario: Driving calibrated test signals into DUTs with variable input capacitance and loading requirements in ATE platforms. IC Role / Device Role / Timing Role: Functions as precision-controlled output stage with predictable rise/fall behavior and repeatable enable timing. Use Value: Guaranteed 3-state leakage < ±10 μA at 125 °C ensures stable high-Z state during measurement phases, preventing signal corruption. |
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 |
|---|---|---|---|
| 74LVC125APW,118 | Lower VCC range (1.65–5.5 V); CMOS input thresholds (VIH = 0.7×VCC); 3.3 V optimized | Better suited for mixed-voltage 3.3 V/5 V systems; not TTL-input compatible | Select when operating below 4.5 V or requiring lower static power; avoid if interfacing with pure TTL sources. |
| SN74HCT125PWR | Identical TTL input specs; SOIC-14 package (SOT108-1); slightly higher max tpd (7.5 ns vs 7.0 ns @ 50 pF) | Preferred where board space allows larger SOIC; same functional behavior but different thermal profile | Choose for legacy footprint compatibility or simplified thermal management; identical logic behavior and pinout. |
Compared with 74LVC125APW,118, the 74VHCT125PW,118 guarantees robust TTL-level recognition without supply dependency; compared with SN74HCT125PWR, it offers superior thermal performance in TSSOP14 and tighter timing specs, making it optimal for space-constrained, high-reliability industrial designs.
Availability
74VHCT125PW,118 is available at Aetrix Electronics and suitable for industrial automation, embedded control, and test equipment requiring stable component supply across extended temperature and long product lifecycles.
Supply support for 74VHCT125PW,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 focused on high-volume, high-reliability logic, analog, and discrete components, serving industrial, automotive, and computing markets with ISO/TS-certified manufacturing.
The 74VHCT series targets robust, drop-in replacements for legacy TTL logic in industrial and infrastructure applications-designed for interoperability, extended temperature operation, and long-term supply stability.
FAQ
Is 74VHCT125PW,118 pin-compatible with 74LS125?
Yes-it is pin-compatible with 74LS125 and other 74xx125 variants in the same package (TSSOP14), sharing identical pin numbering and function mapping. The 74VHCT125PW,118 maintains LSTTL-compatible input thresholds and output drive capability while offering CMOS-level power efficiency and extended temperature range.
Can 74VHCT125PW,118 operate at 3.3 V supply?
No-it is specified only for 4.5–5.5 V operation per JEDEC JESD7-A and Nexperia's recommended conditions. At 3.3 V, input thresholds (VIH = 2.0 V) remain valid, but VOH/VOL and timing parameters are not guaranteed; use 74LVC125 instead for 3.3 V systems.
What is the maximum capacitive load this device can drive reliably?
The device is characterized up to 50 pF load capacitance with guaranteed timing (tpd ≤ 7.5 ns, ten ≤ 9.5 ns at VCC = 5 V). For loads exceeding 50 pF, propagation delay increases linearly; design margin should include derating based on actual trace capacitance and required timing slack.
Does 74VHCT125PW,118 require external pull-up resistors on nOE inputs?
No-nOE inputs have internal weak pull-downs (per Nexperia characterization), but external pull-downs are recommended for noise immunity in high-noise industrial environments. Floating nOE is not allowed; uncontrolled enable states may cause bus contention or excessive current draw.
74VHCT125PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74VHCT
- 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:
- 8mA, 8mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74VHCT125PW,118 FAQ
1.How can I place an order for 74VHCT125PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VHCT125PW,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 74VHCT125PW,118 reliable?
The price and inventory of 74VHCT125PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHCT125PW,118 is usually 5 days.
3.What payment methods are accepted for 74VHCT125PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHCT125PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74VHCT125PW,118?
74VHCT125PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VHCT125PW,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 74VHCT125PW,118?
For technical support, including 74VHCT125PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHCT125PW,118 requirements.
6.How does Aetrix verify that 74VHCT125PW,118 is sourced from the original manufacturer or authorized distributors?
All 74VHCT125PW,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 74VHCT125PW,118 meets industry standards.
7.What is the process for return or replacement of 74VHCT125PW,118?
All 74VHCT125PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74VHCT125PW,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 74VHCT125PW,118 part is unused and in its original packaging.
Return procedure for 74VHCT125PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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