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Nexperia USA Inc. 74AHCT1G126GF,132
- Part No.:
- 74AHCT1G126GF,132
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 6-XFDFN
- Datasheet:
-
74AHCT1G126GF,132.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 6XSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,734
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Product details
Overview
74AHCT1G126GF,132 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 4.7 ns typical propagation delay (VCC = 5.0 V, CL = 50 pF), ±8 mA output drive, and operates across –40 °C to +125 °C. Used in voltage-level translation between 3.3 V and 5 V logic domains in industrial control backplanes.
For engineers reviewing the 74AHCT1G126GF,132 datasheet, 74AHCT1G126GF,132 pinout, 74AHCT1G126GF,132 application, or 74AHCT1G126GF,132 equivalent, this device serves as a compact, high-noise-immunity unidirectional buffer for mixed-voltage I/O interfacing - especially where space-constrained PCBs require low-power, rail-to-rail compatible 3-state drivers with fast enable/disable timing.
Technical Context
This device implements a single-channel non-inverting buffer with active-low 3-state control (OE), enabling bidirectional bus sharing via external direction control. Its TTL input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) ensure compatibility with legacy 5 V logic while maintaining CMOS power efficiency.
The architecture supports overvoltage-tolerant inputs (up to 5.5 V independent of VCC), allowing safe interfacing between higher-voltage peripherals and lower-supply logic. Propagation delay symmetry (tpd = tPLH ≈ tPHL) and balanced rise/fall times (<3 ns) support clean signal integrity in high-speed digital control paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 5.5 V - Ensures stable operation in standard 5 V systems with ±10 % tolerance. |
| Input Thresholds (TTL) | VIH = 2.0 V min, VIL = 0.8 V max - Guarantees reliable recognition of 5 V TTL logic levels. |
| Propagation Delay | 4.7 ns typ (VCC = 5.0 V, CL = 50 pF) - Enables ≤213 MHz data rate in point-to-point buffered paths. |
| Output Drive Strength | ±8 mA (VOH/VOL @ VCC = 4.5 V) - Sufficient to drive 15 pF loads with <0.55 V VOL and >3.7 V VOH. |
| Enable/Disable Time | ten = 4.8 ns typ, tdis = 5.7 ns typ (CL = 50 pF) - Supports rapid bus arbitration with sub-5 ns switching control. |
| Operating Temperature | –40 °C to +125 °C - Qualified for under-hood industrial and extended-temperature embedded applications. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Robust handling during automated assembly and field service. |
Pinout & Package
XSON6 plastic extremely thin small outline package (SOT886); no leads; 6 terminals; body size 1.0 × 1.45 × 0.5 mm; thermal enhanced, side-wettable flanks not present (distinct from GZ variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A | Data input | Non-inverting input accepting TTL-level signals; overvoltage tolerant to 5.5 V. |
| OE | Output enable (active-low) | Asserting low enables Y output; high places Y in high-impedance state for bus sharing. |
| GND | Ground reference | 0 V return path for all internal circuitry and output current sinking. |
| n.c. | No connection | Terminal 5 is internally unconnected; must remain floating or grounded per layout best practice. |
| VCC | Positive supply | Primary power rail (4.5–5.5 V); decoupling capacitor required within 1 cm of this pin. |
| Y | 3-state buffered output | Non-inverted replica of A when OE = L; high-Z when OE = H; drives ±8 mA. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible input thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V - Interoperates directly with legacy 5 V microcontrollers and FPGAs without level shifters. |
| Overvoltage-tolerant inputs | Withstands up to 5.5 V on A/OE regardless of VCC - Enables safe hot-swap and mixed-rail interface without external clamping. |
| Symmetrical output impedance | Matched pull-up/pull-down strength ensures consistent edge rates and reduced overshoot on transmission lines. |
| Wide temperature range | Specified from –40 °C to +125 °C - Validated for use in motor drives, PLC I/O modules, and outdoor telecom equipment. |
| Low dynamic power dissipation | CPD = 11 pF - Limits switching power to <1.4 μW/MHz at 5 V, supporting battery-backed or thermally constrained designs. |
Applications
| Industrial Backplane Interface | Microcontroller GPIO Expansion |
|---|---|
|
Use Scenario: Isolating 5 V sensor bus from 3.3 V MCU domain while preserving signal integrity across 15 cm PCB traces. IC Role / Device Role / Timing Role: Unidirectional level-translating buffer with 3-state control synchronized to SPI chip select. Use Value: Eliminates need for discrete MOSFET translators; 4.7 ns tpd maintains timing margin for 20 MHz SPI clock with setup/hold compliance. |
Use Scenario: Driving multiple 5 V peripheral enable lines (e.g., ADC, DAC, display controller) from a single 3.3 V GPIO pin. IC Role / Device Role / Timing Role: Single-output bus driver enabling concurrent peripheral activation with precise enable sequencing. Use Value: ±8 mA drive sustains logic-high levels across 50 cm ribbon cable; 5.7 ns tdis prevents bus contention during state transitions. |
| Automated Test Equipment (ATE) Signal Conditioning | Programmable Logic I/O Buffering |
|
Use Scenario: Conditioning TTL-level trigger signals from legacy instruments before feeding into FPGA-based acquisition logic. IC Role / Device Role / Timing Role: Input buffer with noise-immune TTL thresholds and fast enable gating for pulse synchronization. Use Value: >2000 V HBM ESD rating withstands repeated probe contact; 0.8 V VIL rejects line noise below 200 mV peak. |
Use Scenario: Adding 3-state capability to CPLD outputs driving shared JTAG or boundary-scan test buses. IC Role / Device Role / Timing Role: Output isolator enabling safe multi-device JTAG daisy chains without signal contention. Use Value: Sub-5 ns enable/disable times align with IEEE 1149.1 TCK timing budgets; 125 °C rating supports reflow-safe board programming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHCT1G125GV,125 | Active-high OE (vs. active-low OE in 74AHCT1G126GF,132); otherwise identical electrical specs. | Requires inverted OE control signal; unsuitable where existing firmware asserts OE low for enable. | Select only if system logic naturally provides high-active enable; verify timing alignment with OE assertion edge. |
| SN74LVC1G126DBVR | CMOS input thresholds (VIH = 70 % VCC), narrower VCC range (1.65–5.5 V), higher ICC (max 10 μA vs. 40 μA). | Better for 1.8 V/2.5 V systems; less robust in noisy 5 V environments due to lower noise margin. | Prefer for mixed-supply designs below 3.3 V; avoid in industrial 5 V backplanes requiring TTL noise immunity. |
Compared with 74AHCT1G126GV,125, the GF,132 offers native active-low OE matching common bus arbitration protocols; versus SN74LVC1G126DBVR, it delivers superior noise immunity and guaranteed TTL compatibility at 5 V - critical for legacy system integration.
Availability
74AHCT1G126GF,132 is available at Aetrix Electronics and suitable for industrial automation backplanes, microcontroller GPIO expansion, automated test equipment signal conditioning, and programmable logic I/O buffering requiring stable component supply across extended temperature ranges.
Supply support for 74AHCT1G126GF,132 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 optimized for efficiency, reliability, and miniaturization in industrial and automotive applications.
The 74AHCT series targets robust, pin-efficient logic interfacing in harsh environments - designed specifically for mixed-voltage system integration with TTL compatibility, wide temperature operation, and high ESD resilience.
FAQ
What is the function of the n.c. pin on the SOT886 (XSON6) package?
Pin 5 is explicitly designated "n.c." (no connection) in the official Nexperia datasheet and has no internal bond wire or circuit connection. It must remain electrically floating in PCB layout; grounding or routing to VCC/GND violates the validated package design and may affect thermal performance or EMI behavior.
Can 74AHCT1G126GF,132 operate with a 3.3 V supply?
No - the 74AHCT variant is specified only for 4.5 V to 5.5 V supply. At 3.3 V, VIH (2.0 V min) exceeds 60 % of VCC, violating TTL input threshold requirements and risking unreliable HIGH detection. Use 74AHC1G126GF,132 instead for 3.3 V operation with CMOS thresholds.
How does the overvoltage-tolerant input feature work in practice?
Inputs A and OE tolerate up to 5.5 V regardless of VCC value, enabled by internal clamp structures that shunt excess voltage to VCC or GND. This allows safe connection to 5 V buses while VCC is powered at 4.5 V, eliminating external diodes or resistors in mixed-rail interfaces - confirmed per datasheet Section 1, Table 6, and limiting values.
Is 74AHCT1G126GF,132 pin-compatible with other 74AHCT1G126 variants?
Yes - all 74AHCT1G126 variants (GW, GV, GM, GZ, GF) share identical pin functions and logic behavior. The GF,132 (SOT886/XSON6) differs only in mechanical footprint and thermal characteristics; electrical pin mapping matches SOT353-1 and SOT753 packages per datasheet Section 6.2 and Figure 3.
74AHCT1G126GF,132 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 6-XFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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, SOT891 (1x1)
74AHCT1G126GF,132 FAQ
1.How can I place an order for 74AHCT1G126GF,132 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT1G126GF,132 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 74AHCT1G126GF,132 reliable?
The price and inventory of 74AHCT1G126GF,132 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT1G126GF,132 is usually 5 days.
3.What payment methods are accepted for 74AHCT1G126GF,132?
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Once your 74AHCT1G126GF,132 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 74AHCT1G126GF,132?
For technical support, including 74AHCT1G126GF,132 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT1G126GF,132 requirements.
6.How does Aetrix verify that 74AHCT1G126GF,132 is sourced from the original manufacturer or authorized distributors?
All 74AHCT1G126GF,132 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 74AHCT1G126GF,132 meets industry standards.
7.What is the process for return or replacement of 74AHCT1G126GF,132?
All 74AHCT1G126GF,132 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT1G126GF,132, 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 74AHCT1G126GF,132 part is unused and in its original packaging.
Return procedure for 74AHCT1G126GF,132:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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