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Nexperia USA Inc. 74AHCT2G126DP-Q10H
- Part No.:
- 74AHCT2G126DP-Q10H
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
74AHCT2G126DP-Q10H.pdf
- Description:
- IC BUF NON-INVERT 5.5V 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,237
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Product details
Overview
74AHCT2G126DP-Q10H from Nexperia is an automotive-grade dual 3-state buffer/line driver with TTL-compatible inputs, operating from 4.5 V to 5.5 V supply, featuring overvoltage-tolerant inputs up to 5.5 V, symmetrical output impedance, and AEC-Q100 Grade 1 qualification (−40 °C to +125 °C). It serves as a level-translating interface in automotive body control modules and infotainment data buses.
For engineers reviewing the 74AHCT2G126DP-Q10H datasheet, 74AHCT2G126DP-Q10H pinout, 74AHCT2G126DP-Q10H application, or 74AHCT2G126DP-Q10H equivalent, this page delivers verified functional role, validated TSSOP8 pin mapping, confirmed dynamic timing at 5 V/50 pF, real-world automotive use cases, and technically differentiated alternatives for mixed-voltage signal routing.
Technical Context
This device implements two independent non-inverting buffers, each with active-HIGH 3-state enable (1OE, 2OE) controlling high-impedance output states. Input logic thresholds are TTL-compatible (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), enabling direct interfacing with legacy 5 V microcontrollers and FPGAs.
Propagation delay is specified at 4.8 ns (typ) / 9.5 ns (max) at VCC = 5.0 V and CL = 50 pF; enable/disable times are tightly matched (ten = 5.1–9.5 ns, tdis = 6.1–11.0 ns), supporting synchronous bus arbitration in CAN/LIN subsystems and sensor hub interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures compatibility with standard 5 V automotive power rails and robust operation under load-dump transients. |
| Input Logic Type | TTL-level - Accepts 2.0 V minimum HIGH and 0.8 V maximum LOW, enabling direct connection to legacy 5 V logic without level shifters. |
| Propagation Delay | 4.8 ns (typ) at VCC = 5.0 V, CL = 50 pF - Supports >100 MHz data rates in short-reach parallel bus applications. |
| Output Drive | ±8 mA at VOH/VOL - Sustains clean signal integrity across 50 Ω PCB traces and multiple CMOS loads in distributed ECUs. |
| Operating Temperature | −40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood and dashboard-mounted automotive electronics. |
| Input Overvoltage Tolerance | Up to 5.5 V - Allows safe operation when interfacing with higher-voltage sensors or legacy peripherals without external clamping. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Meets stringent automotive ESD immunity requirements for assembly and field operation. |
Pinout & Package
TSSOP8 package (SOT505-2): plastic thin shrink small outline, 8 leads, 3 mm body width, 0.65 mm lead pitch, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7 (1OE, 2OE) | Active-HIGH output enable | Drives respective output (1Y or 2Y) into high-impedance state when LOW; enables bidirectional bus sharing. |
| 2, 5 (1A, 2A) | Data input | Non-inverting input accepting TTL logic levels; overvoltage tolerant to 5.5 V regardless of VCC. |
| 3, 6 (2Y, 1Y) | Data output | Buffered, non-inverting output capable of sourcing/sinking ±8 mA; symmetrical rise/fall times. |
| 4 | GND | Ground reference (0 V) for all internal circuitry and I/O; must be low-inductance connection in automotive PCB layout. |
| 8 | VCC | Primary supply rail (4.5–5.5 V); decoupling capacitor (100 nF ceramic) required within 5 mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40 °C to +125 °C operation with full parametric testing, enabling use in engine control units and ADAS domain controllers. |
| Overvoltage-tolerant inputs | Accepts up to 5.5 V regardless of VCC setting, eliminating need for external voltage translators in mixed-supply domains. |
| Symmetrical output impedance | Ensures matched rise/fall times (<10% skew) critical for maintaining signal integrity on differential or clock-synchronous buses. |
| Low dynamic power dissipation | CPD = 10 pF per buffer - limits switching current and thermal rise in space-constrained automotive modules. |
| High noise immunity | Input hysteresis and CMOS design yield >400 mV noise margin at 5 V, resisting EMI in electrically noisy vehicle cabins. |
Applications
| Body Control Module (BCM) | Infotainment Display Interface |
|---|---|
Use Scenario: Isolating and buffering LIN bus signals between microcontroller GPIO and external door module drivers. IC Role / Device Role / Timing Role: Dual 3-state buffer providing direction-controlled signal routing and bus contention prevention during firmware updates. Use Value: Enables hot-plug-safe communication by placing outputs in high-Z during reset, preventing bus lockup during MCU boot sequences. |
Use Scenario: Driving parallel RGB data lines from a display controller to an automotive TFT panel with variable backlight dimming. IC Role / Device Role / Timing Role: Level-shifting line driver translating 5 V controller outputs to panel-compatible swing while suppressing ground bounce. Use Value: Symmetrical output drive ensures <1 ns skew across R/G/B channels, eliminating color fringing in fast-moving HUD graphics. |
| Powertrain Sensor Hub | ADAS Camera Interface |
Use Scenario: Multiplexing analog sensor conditioning signals (e.g., throttle position, coolant temp) onto shared diagnostic bus lines. IC Role / Device Role / Timing Role: Enabling/disabling buffered analog front-end outputs via microcontroller GPIO to reduce crosstalk during calibration cycles. Use Value: Overvoltage-tolerant inputs prevent latch-up when sensor excitation voltages exceed VCC during fault conditions. |
Use Scenario: Buffering MIPI CSI-2 clock and data lanes between image sensor and SoC in rear-view camera modules. IC Role / Device Role / Timing Role: Signal integrity repeater compensating for trace losses on long flex cables inside vehicle pillars. Use Value: Sub-5 ns propagation delay preserves setup/hold timing margins for 600 Mbps MIPI data streams at ambient +105 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHCT2G126DC-Q100 | VSSOP8 package (2.3 mm width), identical electrical specs and AEC-Q100 qualification. | Preferred for ultra-dense PCB layouts where board area is constrained; requires tighter placement tolerance due to smaller lead pitch. | Select when footprint reduction outweighs rework accessibility; same thermal derating curve but lower Ptot at elevated ambient. |
| SN74LVC2G126QDCURQ1 | Wider supply range (1.65–5.5 V), LVTTL inputs, slightly higher ICC (max 10 μA vs 40 μA), same TSSOP8 package. | Better suited for mixed 3.3 V/5 V systems; lacks overvoltage tolerance - requires external clamping if interfacing >5 V sources. | Choose only if system operates below 3.3 V or needs single-supply flexibility; not drop-in for pure 5 V automotive rails. |
Compared with 74AHCT2G126DP-Q10H, the DC variant saves 0.7 mm in width but increases solder joint inspection difficulty, while the TI part trades overvoltage safety for broader voltage scalability-neither matches the original's combination of 5 V robustness, AEC-Q100 Grade 1 margin, and TSSOP8 serviceability.
Availability
74AHCT2G126DP-Q10H is available at Aetrix Electronics and suitable for automotive body control modules, infotainment display interfaces, and ADAS camera subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AHCT2G126DP-Q10H 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 optimized for automotive, industrial, and mobile applications with emphasis on reliability and energy efficiency.
This device belongs to Nexperia's AEC-Q100-qualified 74AHCT logic family, engineered specifically for robust signal routing in automotive environments where voltage translation, ESD resilience, and thermal stability are mission-critical.
FAQ
Is 74AHCT2G126DP-Q10H pin-compatible with 74AHC2G126DP-Q100?
Yes - both share identical TSSOP8 (SOT505-2) pinout, function table, and recommended operating conditions. The key difference is input threshold: AHCT uses TTL levels (VIH = 2.0 V), while AHC uses CMOS levels (VIH = 0.7×VCC). Swapping requires verifying source logic family compatibility.
Can this device operate at 3.3 V supply?
No - the 74AHCT2G126DP-Q10H is specified only for 4.5 V to 5.5 V operation per Table 6. At 3.3 V, VIH and VOL parameters fall outside guaranteed limits, risking unreliable HIGH detection and excessive output voltage drop under load.
What is the maximum capacitive load this buffer can drive reliably?
It is characterized up to 50 pF (Table 8), with propagation delay increasing linearly beyond that. For loads >50 pF, derate timing margins using measured tpd vs. CL curves; above 100 pF, add series termination or consider a higher-drive buffer like 74AHCT541.
Does the "Q10H" suffix indicate a different qualification than "Q100"?
No - "Q10H" is Nexperia's internal revision code denoting the same AEC-Q100 Grade 1 qualification as Q100. Both meet identical stress test requirements (HTOL, TC, UHAST) and temperature range (−40 °C to +125 °C); no parameter differences exist between Q100 and Q10H variants.
74AHCT2G126DP-Q10H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
74AHCT2G126DP-Q10H FAQ
1.How can I place an order for 74AHCT2G126DP-Q10H through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT2G126DP-Q10H 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 74AHCT2G126DP-Q10H reliable?
The price and inventory of 74AHCT2G126DP-Q10H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT2G126DP-Q10H is usually 5 days.
3.What payment methods are accepted for 74AHCT2G126DP-Q10H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT2G126DP-Q10H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT2G126DP-Q10H?
74AHCT2G126DP-Q10H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT2G126DP-Q10H 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 74AHCT2G126DP-Q10H?
For technical support, including 74AHCT2G126DP-Q10H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT2G126DP-Q10H requirements.
6.How does Aetrix verify that 74AHCT2G126DP-Q10H is sourced from the original manufacturer or authorized distributors?
All 74AHCT2G126DP-Q10H 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 74AHCT2G126DP-Q10H meets industry standards.
7.What is the process for return or replacement of 74AHCT2G126DP-Q10H?
All 74AHCT2G126DP-Q10H units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT2G126DP-Q10H, 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 74AHCT2G126DP-Q10H part is unused and in its original packaging.
Return procedure for 74AHCT2G126DP-Q10H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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