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Nexperia USA Inc. 74HC125PW,118
- Part No.:
- 74HC125PW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC125PW,118.pdf
- Description:
- IC BUFFER NON-INVERT 6V 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:22,243
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Product details
Overview
74HC125PW,118 from Nexperia is a quad 3-state buffer/line driver IC in TSSOP14 package, operating from 2.0 V to 6.0 V supply, with CMOS-level inputs, propagation delay as low as 9 ns at VCC = 6.0 V, and guaranteed operation from –40 °C to +125 °C - used for bus isolation and signal routing in industrial control logic circuits.
For engineers reviewing the 74HC125PW,118 datasheet, 74HC125PW,118 pinout, 74HC125PW,118 application, or 74HC125PW,118 equivalent, key selection criteria include 3-state enable timing (ten/tdis ≤ 32 ns), input clamp diode support for overvoltage-tolerant interfacing, output drive capability (±35 mA), and compatibility with mixed-voltage system buses.
Technical Context
This device implements four independent non-inverting buffers, each with an active-low 3-state output enable (nOE) controlling high-impedance OFF-state. The logic function follows standard TTL-compatible truth table behavior: when nOE = LOW, output Y mirrors input A; when nOE = HIGH, Y = high-Z.
It features integrated input clamp diodes enabling safe interface to signals exceeding VCC via external current-limiting resistors, and meets JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards. ESD protection exceeds 2000 V HBM and 1000 V CDM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - supports direct interface with 3.3 V and 5 V logic domains without level shifters. |
| Propagation Delay (tpd) | 9 ns (typ) at VCC = 6.0 V, CL = 50 pF - enables reliable operation in sub-25 MHz digital buses. |
| Enable/Disable Time (ten/tdis) | 12 ns (typ) at VCC = 6.0 V - ensures fast bus turnaround for time-critical multiplexed data paths. |
| Output Drive Strength | ±35 mA - sufficient to drive standard 50 pF loads and moderate fan-out without external buffering. |
| Input Clamp Diodes | Integrated - allows safe connection of inputs to voltages up to VCC + 0.5 V using series resistors. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood industrial and extended-temperature embedded applications. |
| Power Dissipation Cap. | 22 pF (CPD) - determines dynamic power consumption in high-frequency switching environments. |
Pinout & Package
TSSOP14 plastic thin shrink small outline package (SOT402-1), 14-lead, body width 4.4 mm, lead pitch 0.65 mm, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | nOE₁–nOE₄ | Active-low 3-state enable inputs - each controls one buffer's output impedance independently. |
| 2, 5, 9, 12 | nA₁–nA₄ | Data inputs - accept CMOS-level signals; clamped to prevent overvoltage damage. |
| 3, 6, 8, 11 | nY₁–nY₄ | Non-inverting buffered outputs - go high-Z when corresponding nOE is HIGH. |
| 7 | GND | Ground reference (0 V) - must be low-impedance for noise immunity and stable output levels. |
| 14 | VCC | Positive supply rail - powers all four buffers and internal logic; decoupling capacitor required. |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range (2.0–6.0 V) | Enables interoperability across legacy 5 V and modern 3.3 V/2.5 V systems without voltage translation. |
| CMOS-level input thresholds | VIH = 3.15 V (min) at VCC = 4.5 V - ensures robust noise margin in noisy industrial environments. |
| High noise immunity | Typical noise margin > 1.3 V at VCC = 4.5 V - reduces susceptibility to EMI-induced glitches on control lines. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transient overvoltage events. |
| Low static current | ICC ≤ 8.0 μA (typ) at VCC = 6.0 V - minimizes quiescent power in always-on monitoring subsystems. |
Applications
| Industrial PLC Backplane Bus | Test Equipment Signal Routing |
|---|---|
|
Use Scenario: Isolating microcontroller GPIOs from shared 5 V backplane bus in programmable logic controllers. IC Role / Device Role / Timing Role: Quad 3-state buffer provides directional signal gating and bus contention prevention during multi-master arbitration. Use Value: Enables deterministic bus access with <32 ns enable/disable transitions, reducing arbitration latency by >40% vs. discrete MOSFET switches. |
Use Scenario: Switching DUT signals between multiple measurement instruments in automated test fixtures. IC Role / Device Role / Timing Role: Acts as a reconfigurable signal path selector with independent enable control per channel. Use Value: Eliminates mechanical relay wear and bounce; supports >10⁶ switching cycles with nanosecond-level repeatability. |
| Medical Device Data Acquisition | Automated Meter Reading Interface |
|
Use Scenario: Buffering analog-to-digital converter outputs before transmission over long PCB traces in patient monitors. IC Role / Device Role / Timing Role: Provides low-noise, high-impedance output drive while isolating ADC core from trace capacitance loading. Use Value: Maintains signal integrity with <15 ns transition time and <0.4 V VOL at 6 mA load, preserving 12-bit ENOB. |
Use Scenario: Interfacing microcontroller UART lines to RS-485 transceivers in smart electricity meters. IC Role / Device Role / Timing Role: Level-shifting and bus-driving buffer between 3.3 V MCU and 5 V transceiver logic inputs. Use Value: Input clamp diodes allow direct 5 V-tolerant connection without external resistors, reducing BOM count by 4 components per channel. |
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 |
|---|---|---|---|
| 74HC125D,653 | Same logic function and specs, but in SO14 (SOT108-1) package - 3.9 mm body width, 1.27 mm pitch. | Preferred for through-hole prototyping or legacy board layouts requiring wider lead spacing. | Select when thermal dissipation >500 mW is needed or manual soldering is required. |
| SN74LVC125APWR | 3.3 V only (1.65–3.6 V), lower VIL/VOL, faster tpd (5.5 ns typ), no input clamp diodes. | Suitable for high-speed, low-voltage FPGA/CPLD I/O expansion where overvoltage tolerance is not required. | Choose for battery-powered portable devices needing <1 μA ICC and 3.3 V native operation. |
Compared with 74HC125PW,118, the SO14 variant offers higher thermal mass and easier hand-soldering, while the SN74LVC125APWR trades overvoltage resilience for speed and ultra-low power in 3.3 V-only systems - selection depends on voltage domain, layout constraints, and fault tolerance requirements.
Availability
74HC125PW,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automated test equipment, medical data acquisition modules, and smart meter interfaces requiring stable component supply across extended temperature ranges.
Supply support for 74HC125PW,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 automotive markets.
The 74HC125 belongs to Nexperia's HC logic family - designed for robust, wide-supply-voltage digital interfacing in harsh environments where noise immunity and temperature stability are critical.
FAQ
Can 74HC125PW,118 operate at 2.0 V supply while driving a 50 pF load?
Yes. At VCC = 2.0 V, the device delivers tpd ≤ 100 ns and VOH ≥ 1.5 V (min) with 6 mA load, meeting standard HC logic thresholds. Output rise/fall times remain within specification (≤60 ns) for 50 pF loads, ensuring reliable timing in low-power sensor interface circuits.
What is the maximum continuous current per output pin?
The absolute maximum output current is ±35 mA per pin, as specified in Table 4 (Limiting Values). However, sustained operation above ±20 mA requires derating based on ambient temperature and PCB copper area to maintain junction temperature below 150 °C per JEDEC JESD51 guidelines.
Does 74HC125PW,118 support hot insertion into a live bus?
No. While input clamp diodes tolerate brief overvoltage, the device lacks true hot-swap protection circuitry. Applying VCC after signal inputs may cause latch-up or undefined states. Power sequencing - VCC first, then inputs - is mandatory per Section 7 limiting values and JESD78 compliance requirements.
How does the 74HC125 differ from the 74HCT125 in practical use?
The 74HC125 uses CMOS input thresholds (VIH ≈ 0.7×VCC), while 74HCT125 uses TTL-compatible thresholds (VIH = 2.0 V min at VCC = 4.5–5.5 V). This makes the HCT version ideal for interfacing with legacy 5 V TTL outputs, whereas HC suits mixed-voltage or battery-operated systems with variable VCC.
74HC125PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- 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:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74HC125PW,118 FAQ
1.How can I place an order for 74HC125PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC125PW,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 74HC125PW,118 reliable?
The price and inventory of 74HC125PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC125PW,118 is usually 5 days.
3.What payment methods are accepted for 74HC125PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC125PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC125PW,118?
74HC125PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC125PW,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 74HC125PW,118?
For technical support, including 74HC125PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC125PW,118 requirements.
6.How does Aetrix verify that 74HC125PW,118 is sourced from the original manufacturer or authorized distributors?
All 74HC125PW,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 74HC125PW,118 meets industry standards.
7.What is the process for return or replacement of 74HC125PW,118?
All 74HC125PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC125PW,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 74HC125PW,118 part is unused and in its original packaging.
Return procedure for 74HC125PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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