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Nexperia USA Inc. 74AHCT1G126GM,115
- Part No.:
- 74AHCT1G126GM,115
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 6-XFDFN
- Datasheet:
-
74AHCT1G126GM,115.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 6XSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,428
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Product details
Overview
74AHCT1G126GM,115 from Nexperia is a single 3-state bus buffer/line driver with TTL-compatible inputs and overvoltage-tolerant inputs up to 5.5 V, operating from 4.5 V to 5.5 V supply. It features symmetrical output impedance, balanced propagation delays (max 7.0 ns at 5 V, CL = 50 pF), and supports industrial temperature range (–40 °C to +125 °C). Used in voltage-level translation between mixed-supply subsystems in industrial I/O controllers.
For engineers reviewing the 74AHCT1G126GM,115 datasheet, 74AHCT1G126GM,115 pinout, 74AHCT1G126GM,115 application, or 74AHCT1G126GM,115 equivalent, key selection criteria include TTL input threshold compatibility, 3-state enable timing (enable/disable < 9.5 ns), XSON6 package thermal performance, and guaranteed operation across full industrial temperature range without derating below +125 °C.
Technical Context
This device implements a non-inverting buffer with active-low 3-state control logic: when OE is LOW, Y follows A; when OE is HIGH, Y enters high-impedance state. Input thresholds are fixed at VIH = 2.0 V min and VIL = 0.8 V max (TTL-compatible), independent of VCC within 4.5–5.5 V range.
Its XSON6 (SOT886) package provides six terminals - including dedicated GND and VCC pins plus n.c. - enabling compact PCB layout and low-inductance power delivery. Overvoltage tolerance allows safe interfacing with 5.5 V signals even when powered at 4.5 V, eliminating external level-shifting components in mixed-voltage data buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 5.5 V - Ensures compatibility with standard 5 V logic systems while supporting margin for rail droop. |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V - Matches TTL logic families, enabling direct connection to legacy microcontrollers and FPGAs. |
| Propagation Delay | Max 7.0 ns (VCC = 5.0 V, CL = 50 pF) - Supports >70 MHz data rates in point-to-point buffered paths. |
| Enable/Disable Time | Max 9.5 ns (VCC = 5.0 V, CL = 50 pF) - Enables fast bus arbitration and dynamic signal gating in real-time control loops. |
| Output Drive Strength | ±8 mA (VOH/VOL @ VCC = 4.5 V) - Sustains clean logic levels driving 15–50 pF loads typical of PCB traces and CMOS inputs. |
| Operating Temperature | –40 °C to +125 °C - Qualified for under-hood automotive modules, motor drives, and industrial PLC backplanes. |
| ESD Robustness | HBM >2000 V, CDM >1000 V - Reduces field failure risk during automated assembly and system integration. |
Pinout & Package
XSON6 (SOT886) plastic extremely thin small outline package: 1.0 mm × 1.45 mm × 0.5 mm body, no leads, 6 copper terminals, side-wettable flanks optional (not present in this variant), thermal pad not included.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE (Output Enable) | Active-low control input; asserts high-impedance state on Y when HIGH, enables pass-through when LOW. |
| 2 | A (Data Input) | Non-inverting TTL-level input; accepts 0–5.5 V signals regardless of VCC, enabling mixed-voltage interfacing. |
| 3 | GND | Signal and power reference ground; must be low-impedance connection to minimize noise coupling into output stage. |
| 4 | Y (Data Output) | 3-state CMOS output; drives HIGH/LOW or floats; requires external pull-up/down only if bus contention is possible. |
| 5 | n.c. | No internal connection; electrically isolated; may be left unconnected or used as mechanical fiducial. |
| 6 | VCC | Positive supply input; decoupling capacitor (100 nF ceramic) required within 2 mm for stable switching performance. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible input thresholds | VIH ≥ 2.0 V / VIL ≤ 0.8 V at VCC = 4.5–5.5 V - Eliminates need for external resistive dividers when interfacing with 5 V microcontrollers. |
| Overvoltage-tolerant inputs | Withstands 0–5.5 V input signals independent of VCC - Enables safe connection to higher-voltage buses without clamping diodes. |
| Symmetrical output impedance | Typical ROH ≈ ROL ≈ 25 Ω - Minimizes duty-cycle distortion in clock distribution or bidirectional data lines. |
| Low dynamic power dissipation | CPD = 11 pF - Limits switching current to <100 μA at 1 MHz, reducing heat generation in dense logic arrays. |
| Industrial temperature qualification | Specified from –40 °C to +125 °C - Guarantees timing and drive strength stability across full operating envelope without derating. |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Isolating microcontroller GPIOs from noisy 12 V sensor/actuator buses via level-translating buffers. IC Role / Device Role / Timing Role: Single-channel 3-state buffer enabling time-multiplexed access to shared CAN/LIN peripheral buses. Use Value: Overvoltage-tolerant inputs prevent latch-up when sensor transients exceed MCU supply; 9.5 ns disable time ensures clean bus release before next node transmission. |
Use Scenario: Driving LED status indicators and relay coils from low-power 5 V MCU outputs in door module assemblies. IC Role / Device Role / Timing Role: Logic-level translator and current booster between 3.3 V FPGA I/O and 5 V indicator drivers. Use Value: ±8 mA drive strength sustains 5 mA LED current with 2 V headroom; 125 °C rating matches under-dash thermal environment. |
| Medical Diagnostic Equipment Backplane | Test & Measurement Signal Routing |
Use Scenario: Buffering configuration signals between isolated ADC/DAC modules and main controller across split-ground partitions. IC Role / Device Role / Timing Role: Unidirectional data isolator with controlled rise/fall times to suppress EMI in analog-sensitive zones. Use Value: Symmetrical output impedance reduces harmonic content; 7 ns propagation delay preserves sub-100 ns timing margins in synchronized acquisition systems. |
Use Scenario: Enabling/disabling signal paths in modular benchtop instruments with hot-swappable channel cards. IC Role / Device Role / Timing Role: Bus gate controlling routing of trigger, clock, and data lines between instrument sections. Use Value: Fast 3-state switching (<9.5 ns) prevents signal glitches during card insertion; XSON6 footprint saves space on high-density interposer boards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHCT1G125GM,115 | Inverting buffer (A → NOT Y); identical pinout, specs, and package. | Requires logic inversion in signal path; unsuitable where polarity must be preserved. | Select only when system-level inversion is acceptable or compensated elsewhere. |
| SN74LVC1G126DBVR | CMOS-input version (VIH = 0.7×VCC); lower VCC range (1.65–5.5 V); SOT-23-5 package. | Better for ultra-low-voltage domains (1.8 V/2.5 V); incompatible pinout and thermal profile vs. XSON6. | Prefer for multi-rail designs needing 1.8 V compatibility; avoid if board layout is optimized for XSON6 footprint. |
Compared with 74AHCT1G126GM,115, the 74AHCT1G125GM,115 offers identical timing and drive but inverts logic, while SN74LVC1G126DBVR extends voltage flexibility at the cost of package change and reduced industrial temp margin (–40 °C to +125 °C retained, but no 125 °C derating data published).
Availability
74AHCT1G126GM,115 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical diagnostic equipment backplanes, and test & measurement signal routing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AHCT1G126GM,115 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 efficiency, reliability, and miniaturization for industrial, automotive, and consumer markets.
The 74AHCT series targets robust, pin-compatible replacements for legacy TTL logic in modern mixed-signal systems, emphasizing wide supply tolerance, strong drive capability, and enhanced ESD protection without sacrificing speed.
FAQ
Is the 74AHCT1G126GM,115 compatible with 3.3 V microcontroller outputs?
No - its TTL input thresholds require VIH ≥ 2.0 V minimum, but 3.3 V logic outputs typically meet this. However, it is not designed for 3.3 V supply operation: recommended VCC is 4.5–5.5 V. For 3.3 V systems, use 74LVC1G126 variants instead.
What is the function of the n.c. pin on the XSON6 package?
Pin 5 is internally unconnected and serves no electrical purpose. It may be left floating, tied to GND for mechanical stability, or used as a solder mask opening for visual inspection - but must never be connected to VCC, signal lines, or pulled to any voltage.
Does this device support hot-swap or live-insertion scenarios?
Yes - overvoltage-tolerant inputs (up to 5.5 V) and high-impedance OFF-state (IOZ ≤ ±10 μA at 125 °C) allow safe insertion into powered backplanes. However, OE must be held HIGH during insertion to prevent bus contention until firmware initializes the buffer.
How does the XSON6 package affect thermal performance compared to TSSOP5?
XSON6 (SOT886) has lower thermal resistance (RθJA ≈ 220 K/W) than TSSOP5 (≈ 260 K/W) due to shorter thermal path and larger die attach area. At 25 °C ambient and 10 mW dissipation, junction temperature rise is ~2.2 °C lower - critical for sustained operation near +125 °C ambient.
74AHCT1G126GM,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 6-XFDFN
- 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:
- 6-XSON, SOT886 (1.45x1)
74AHCT1G126GM,115 FAQ
1.How can I place an order for 74AHCT1G126GM,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT1G126GM,115 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 74AHCT1G126GM,115 reliable?
The price and inventory of 74AHCT1G126GM,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT1G126GM,115 is usually 5 days.
3.What payment methods are accepted for 74AHCT1G126GM,115?
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4.How is shipping managed for 74AHCT1G126GM,115?
74AHCT1G126GM,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT1G126GM,115 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 74AHCT1G126GM,115?
For technical support, including 74AHCT1G126GM,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT1G126GM,115 requirements.
6.How does Aetrix verify that 74AHCT1G126GM,115 is sourced from the original manufacturer or authorized distributors?
All 74AHCT1G126GM,115 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 74AHCT1G126GM,115 meets industry standards.
7.What is the process for return or replacement of 74AHCT1G126GM,115?
All 74AHCT1G126GM,115 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT1G126GM,115, 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 74AHCT1G126GM,115 part is unused and in its original packaging.
Return procedure for 74AHCT1G126GM,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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