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Nexperia USA Inc. 74AHCT1G125GV,125
- Part No.:
- 74AHCT1G125GV,125
- Manufacturer:
- Nexperia USA Inc.
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74AHCT1G125GV,125.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SC74A
- Quantity:
- Payment:
- Shipping:
Inventory:55,141
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Product details
Overview
74AHCT1G125GV,125 from Nexperia is a single 3-state bus buffer/line driver with TTL-compatible input thresholds, 2.0–5.5 V supply range, overvoltage-tolerant inputs (to 5.5 V), and operation up to +125 °C - used for level translation and bidirectional bus isolation in industrial I/O expansion modules.
For engineers reviewing the 74AHCT1G125GV,125 datasheet, 74AHCT1G125GV,125 pinout, 74AHCT1G125GV,125 application, or 74AHCT1G125GV,125 equivalent, key selection criteria include its TTL-level input compatibility, 5-pin SC-74A (SOT753) package footprint, 3.4 ns typical propagation delay at 5 V/15 pF, and guaranteed 3-state output leakage <10 μA at 125 °C.
Technical Context
This device implements a non-inverting buffer with active-low 3-state enable control (OE), enabling precise bus contention management in shared-data-path systems. Its TTL-compatible VIH/VIL thresholds (2.0 V/0.8 V at 5 V) ensure reliable interfacing with legacy 5 V logic while maintaining CMOS power efficiency.
The architecture features symmetrical output drive strength (±8 mA), balanced propagation delays (tpd = ten = tdis within ±0.5 ns at 5 V), and overvoltage-tolerant inputs that operate safely up to 5.5 V regardless of VCC - critical for mixed-voltage domain bridging without external level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 4.5 V to 5.5 V - supports standard 5 V digital rails with 10% tolerance margin |
| Input threshold (VIH/VIL) | 2.0 V / 0.8 V at VCC = 5 V - ensures robust TTL-level recognition and noise immunity |
| Propagation delay (tpd) | 3.4 ns typ @ 5 V, 15 pF - enables high-speed data buffering in sub-10 ns timing-critical paths |
| Output drive (IO) | ±8 mA - sufficient to drive 10 LSTTL loads or 15 pF transmission lines directly |
| Off-state leakage (IOZ) | 10 μA max @ +125 °C - guarantees bus integrity during hot-swap or partial-power-down sequences |
| Operating temperature | −40 °C to +125 °C - qualified for under-hood industrial and extended-temperature embedded control |
| ESD rating (HBM) | 2000 V - meets IEC 61000-4-2 Level 2 for board-level ESD robustness |
Pinout & Package
74AHCT1G125GV,125 is housed in the SC-74A (SOT753) plastic surface-mounted package: 5-lead, 1.25 mm body width, 0.65 mm pitch, 1.1 × 2.1 mm footprint, with pin 1 marked by a dot in the lower-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low output enable | Drives Y to high-impedance when HIGH; enables buffer pass-through when LOW |
| 2 (A) | Data input | Non-inverting input accepting TTL/CMOS levels; overvoltage tolerant to 5.5 V |
| 3 (GND) | Ground reference | 0 V return path for all internal circuitry and output current sinking |
| 4 (Y) | 3-state output | Buffered A signal when OE = LOW; high-Z state when OE = HIGH |
| 5 (VCC) | Power supply | Primary supply rail (4.5–5.5 V); powers internal logic and output stage |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible input thresholds | VIH = 2.0 V, VIL = 0.8 V @ VCC = 5 V - eliminates need for external level translators when interfacing with 5 V microcontrollers |
| Overvoltage-tolerant inputs | Inputs withstand 5.5 V regardless of VCC - enables safe use in mixed-supply systems (e.g., 3.3 V core driving 5 V bus) |
| Symmetrical output impedance | Matched pull-up/pull-down strength (typ. 22 Ω) - minimizes signal distortion and ground bounce on shared buses |
| High-temperature operation | Guaranteed functionality from −40 °C to +125 °C - suitable for industrial motor drives and power supply monitoring circuits |
| Low dynamic power dissipation | CPD = 11 pF - limits switching power to <100 μW at 1 MHz, reducing thermal load in dense PCB layouts |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
|
Use Scenario: Isolating microcontroller GPIOs from noisy 12 V sensor/actuator buses in programmable logic controllers. IC Role / Device Role / Timing Role: 3-state buffer enabling time-multiplexed access to shared analog/digital input banks while preventing back-driving. Use Value: Overvoltage-tolerant inputs eliminate external clamping diodes; 125 °C rating supports placement near power stages. |
Use Scenario: Interfacing 3.3 V MCU outputs to 5 V CAN transceiver control lines and lamp drivers in body electronics. IC Role / Device Role / Timing Role: Level-translating buffer with fast enable/disable (6.5 ns typ) for synchronized peripheral activation. Use Value: TTL input compatibility ensures reliable logic recognition across battery voltage fluctuations (9–16 V). |
| Medical Diagnostic Equipment Backplane | Test & Measurement Signal Routing |
|
Use Scenario: Managing signal routing between FPGA-based acquisition modules and analog front-end boards in portable ultrasound units. IC Role / Device Role / Timing Role: Bidirectional bus isolator controlled via FPGA GPIO, preventing cross-talk during reconfiguration. Use Value: Low 10 μA off-state leakage preserves signal integrity across high-impedance sensor paths at elevated ambient temperatures. |
Use Scenario: Switching calibration reference signals between multiple DUT channels in automated test equipment. IC Role / Device Role / Timing Role: Precision 3-state gate enabling nanosecond-accurate signal path selection without loading source drivers. Use Value: 3.4 ns propagation delay and matched rise/fall times (<1 ns skew) maintain signal fidelity in 100+ MHz test waveforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHCT1G125GW,125 | TSSOP5 (SOT353-1) package: 2.2 mm length, 1.25 mm width, exposed pad not present | Better thermal resistance (RθJA = 220 K/W vs. 260 K/W) but larger footprint; no side-wettable flanks | Select when board space allows larger package and higher thermal margin is needed over ultra-compact layout |
| SN74LVC1G125DBVR | CMOS-input variant (VIH = 2.0 V min at VCC = 3.3 V); 1.65–5.5 V supply; different pinout (OE on pin 5) | Optimized for 3.3 V systems; lacks native TTL compatibility; requires redesign if interfacing legacy 5 V logic | Choose only for new 3.3 V-only designs where input threshold matching is less critical than supply flexibility |
Compared with 74AHCT1G125GW,125, the GV version offers superior board-area efficiency in SC-74A; versus SN74LVC1G125DBVR, it delivers guaranteed TTL-level recognition and tighter 125 °C leakage performance - essential for industrial field-deployed equipment.
Availability
74AHCT1G125GV,125 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical diagnostic backplanes, and test & measurement signal routing requiring stable component supply across extended temperature ranges.
Supply support for 74AHCT1G125GV,125 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, discrete, and MOSFET solutions with focus on reliability, efficiency, and miniaturization for industrial and automotive markets.
The 74AHCT series targets robust, low-power bus interface applications in harsh environments - designed specifically for mixed-voltage system bridging with guaranteed TTL compatibility and extended temperature operation.
FAQ
What is the maximum clock/data rate supported by 74AHCT1G125GV,125?
The device does not specify a maximum clock frequency, but its 3.4 ns typical propagation delay at 5 V/15 pF implies reliable operation up to ~100 MHz for short traces. System-level timing depends on load capacitance, trace impedance, and slew rate; for 50 pF loads, tpd increases to 4.8 ns, limiting practical edge rates to ~70 MHz in typical PCB layouts.
Can 74AHCT1G125GV,125 be used with a 3.3 V supply?
No - the 74AHCT1G125 variant is specified only for 4.5 V to 5.5 V operation. At 3.3 V, input thresholds (VIH = 2.0 V) become marginal, and output drive degrades significantly. For 3.3 V systems, use the 74AHC1G125GV (CMOS-input version) or SN74LVC1G125DBVR instead.
How does the overvoltage-tolerant input feature work?
Internal input protection circuitry clamps voltages up to 5.5 V independently of VCC, allowing A and OE pins to accept signals exceeding the supply rail - e.g., a 5 V sensor output can safely drive the buffer even when VCC = 3.3 V, eliminating external level-shifting components.
Is 74AHCT1G125GV,125 pin-compatible with other 74-series single-gate buffers?
Yes - it shares the identical 5-pin SC-74A (SOT753) pinout with 74AHCT1G00, 74AHCT1G02, 74AHCT1G04, and other 74AHCT1Gxx variants, enabling drop-in replacement in existing layouts where logic function matches and supply constraints permit.
74AHCT1G125GV,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- 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:
- SC-74A
74AHCT1G125GV,125 FAQ
1.How can I place an order for 74AHCT1G125GV,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT1G125GV,125 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 74AHCT1G125GV,125 reliable?
The price and inventory of 74AHCT1G125GV,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT1G125GV,125 is usually 5 days.
3.What payment methods are accepted for 74AHCT1G125GV,125?
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4.How is shipping managed for 74AHCT1G125GV,125?
74AHCT1G125GV,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT1G125GV,125 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 74AHCT1G125GV,125?
For technical support, including 74AHCT1G125GV,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT1G125GV,125 requirements.
6.How does Aetrix verify that 74AHCT1G125GV,125 is sourced from the original manufacturer or authorized distributors?
All 74AHCT1G125GV,125 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 74AHCT1G125GV,125 meets industry standards.
7.What is the process for return or replacement of 74AHCT1G125GV,125?
All 74AHCT1G125GV,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT1G125GV,125, 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 74AHCT1G125GV,125 part is unused and in its original packaging.
Return procedure for 74AHCT1G125GV,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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