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Nexperia USA Inc. 74AHCT2G125DC-Q10H
- Part No.:
- 74AHCT2G125DC-Q10H
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
74AHCT2G125DC-Q10H.pdf
- Description:
- IC BUF NON-INVERT 5.5V 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
74AHCT2G125DC-Q10H from Nexperia is an automotive-qualified dual 3-state buffer/line driver with TTL-level inputs, operating from 4.5 V to 5.5 V supply, featuring overvoltage-tolerant inputs up to 5.5 V and propagation delays as low as 3.4 ns (VCC = 5 V, CL = 15 pF). It enables bidirectional signal isolation in automotive body control modules and infotainment data buses.
For engineers reviewing the 74AHCT2G125DC-Q10H datasheet, 74AHCT2G125DC-Q10H pinout, 74AHCT2G125DC-Q10H application, or 74AHCT2G125DC-Q10H equivalent, this device supports mixed-voltage interfacing, requires precise enable timing analysis for bus arbitration, and demands verification of output drive strength under 8 mA load at 125 °C ambient.
Technical Context
This IC implements two independent non-inverting buffers, each with active-low 3-state output enable (nOE), enabling bus-hold-free signal routing in shared-data-path architectures. Its TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) ensure compatibility with legacy microcontroller GPIOs.
Propagation delay (tpd), enable time (ten), and disable time (tdis) are tightly matched between channels (<1.0 ns skew typical), supporting synchronized data latching in CAN/LIN transceiver interface staging and sensor signal conditioning paths where deterministic timing is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures stable operation across automotive battery rail variations including cold-crank dips and load-dump transients. |
| Input Logic Type | TTL-level - Directly interfaces with 5 V microcontrollers without level-shifting circuitry. |
| Propagation Delay | 3.4 ns (typ, VCC = 5 V, CL = 15 pF) - Supports >100 MHz data throughput in short-reach digital links. |
| Output Drive | ±8 mA (VOH/VOL guaranteed at VCC = 4.5 V) - Drives standard 50 Ω PCB traces or multiple CMOS inputs without fanout limitation. |
| Operating Temperature | −40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood and powertrain applications. |
| Input Overvoltage Tolerance | 5.5 V absolute max - Allows safe connection to 5 V buses while powered from lower rails (e.g., 3.3 V logic domains). |
| Static Current | 40 μA max (VCC = 5.5 V, −40 °C to +125 °C) - Enables low-quiescent-power always-on monitoring circuits. |
Pinout & Package
VSSOP8 plastic very thin shrink small outline package (SOT765-1); 8 leads; body width 2.3 mm; pin 1 indicator located on lower left corner below marking code 'C25'.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7 (1OE, 2OE) | Active-low output enable | Drives outputs to high-impedance state when HIGH; enables bus sharing without contention. |
| 2, 5 (1A, 2A) | Data input | Accepts TTL-level signals; overvoltage tolerant up to 5.5 V regardless of VCC. |
| 4 (GND) | Ground reference | 0 V return path for all internal logic and output current; must be low-inductance connection. |
| 6, 3 (1Y, 2Y) | Buffered output | Non-inverting, 3-state output capable of sourcing/sinking 8 mA with rail-to-rail swing. |
| 8 (VCC) | Supply voltage | Primary power rail; decoupling capacitor (100 nF) required within 3 mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from −40 °C to +125 °C ambient, including temperature cycling and humidity testing. |
| Symmetrical output impedance | Ensures matched rise/fall times (tPLH ≈ tPHL), minimizing signal distortion in high-speed digital traces. |
| Overvoltage-tolerant inputs | Withstands 5.5 V input even when VCC = 3.3 V - eliminates need for external clamping diodes in mixed-voltage systems. |
| Low dynamic power dissipation | CPD = 11 pF per buffer - limits switching current and heat generation in dense PCB layouts. |
| High noise immunity | Input hysteresis and 0.8 V/2.0 V TTL thresholds reject EMI-induced glitches common in automotive harness environments. |
Applications
| Body Control Module (BCM) | Infotainment Serial Bus Interface |
|---|---|
|
Use Scenario: Isolating microcontroller GPIOs from door lock actuator drivers and window motor control lines. IC Role / Device Role / Timing Role: Dual 3-state buffer providing direction-controlled signal routing and bus contention prevention during multi-node wake-up sequences. Use Value: Prevents back-driving of MCU pins during power sequencing mismatches; enables fail-safe reset recovery without hardware redesign. |
Use Scenario: Level-shifting and buffering UART/SCI signals between 3.3 V SoC and 5 V display controller in head unit design. IC Role / Device Role / Timing Role: TTL-input buffer translating logic levels while maintaining sub-5 ns propagation delay for real-time display command response. Use Value: Eliminates external level shifters; reduces BOM count and layout area while preserving timing margin for 1 Mbps serial communication. |
| Engine Control Unit (ECU) Sensor Signal Conditioning | Automotive LIN Transceiver Interface |
|
Use Scenario: Driving analog sensor multiplexer select lines from a low-noise 3.3 V ADC controller in high-EMI engine bay environment. IC Role / Device Role / Timing Role: Robust buffer isolating sensitive analog domain from noisy digital control signals; provides clean, slew-rate-controlled switching edges. Use Value: Reduces crosstalk-induced offset errors in 12-bit+ sensor readings; improves long-term calibration stability under thermal stress. |
Use Scenario: Enabling/disabling LIN bus transceiver TX/RX paths based on master node arbitration status in gateway modules. IC Role / Device Role / Timing Role: 3-state gate controlling LIN physical layer driver enable, synchronized to protocol stack timing with <10 ns skew between channels. Use Value: Guarantees deterministic bus release timing to meet LIN 2.2A specification for dominant/recessive transition windows. |
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 |
|---|---|---|---|
| 74AHCT2G125DP-Q100 | TSSOP8 (SOT505-2) package; 0.5 mm lead length; 3 mm body width vs. VSSOP8's 2.3 mm width and shorter leads. | Better thermal dissipation (Ptot derates at 4.6 mW/K above 96 °C vs. 4.9 mW/K above 99 °C), suited for higher ambient zones. | Select DP variant when board space allows larger footprint and thermal management prioritizes conduction over convection. |
| SN74LVC2G125QDCURQ1 | CMOS input thresholds (VIH = 2.0 V @ VCC = 3.3 V), wider supply range (1.65–5.5 V), but no AEC-Q100 Grade 1 certification. | Lacks automotive qualification; suitable only for non-safety-critical cabin electronics with tighter voltage margins. | Use only in non-AEC contexts where 3.3 V native operation and lower static current (10 μA typ) outweigh qualification requirements. |
Compared with 74AHCT2G125DP-Q100, the DC package offers superior board-area efficiency and finer pitch routing; compared with SN74LVC2G125QDCURQ1, the Nexperia part delivers guaranteed automotive reliability and TTL compatibility without external biasing.
Availability
74AHCT2G125DC-Q10H is available at Aetrix Electronics and suitable for automotive body control modules, infotainment serial interfaces, and engine control unit sensor signal routing requiring stable component supply across extended temperature ranges.
Supply support for 74AHCT2G125DC-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 specializing in high-performance, high-reliability logic, discrete, and MOSFET solutions, with core R&D and manufacturing in Europe and Asia.
This device belongs to Nexperia's automotive-qualified 74AHCT logic family, engineered specifically for robust signal integrity and timing predictability in harsh-temperature vehicle subsystems.
FAQ
What is the maximum input voltage the 74AHCT2G125DC-Q10H can tolerate when VCC = 3.3 V?
The device supports overvoltage-tolerant inputs up to 5.5 V regardless of VCC level. This allows direct connection to 5 V buses while powered from 3.3 V, eliminating external protection components and simplifying mixed-voltage interface design in automotive gateways.
Does the 74AHCT2G125DC-Q10H support hot insertion or live bus connection?
No. While inputs are overvoltage tolerant, the device lacks Ioff (power-off protection) functionality. Connecting inputs while VCC is unpowered may cause latch-up or excessive current flow through internal ESD structures, violating Absolute Maximum Ratings.
How does the 74AHCT2G125DC-Q10H differ from the 74AHC2G125DC-Q100 variant?
The AHCT version uses TTL-compatible input thresholds (VIH = 2.0 V, VIL = 0.8 V), whereas AHC uses CMOS thresholds (VIH = 3.85 V at VCC = 5.5 V). This makes AHCT ideal for interfacing with legacy 5 V microcontrollers, while AHC suits modern 3.3 V CMOS systems.
What is the recommended PCB layout practice for minimizing ground bounce in high-speed operation?
Place a 100 nF ceramic decoupling capacitor between VCC (pin 8) and GND (pin 4) with trace length <3 mm; use solid ground plane beneath the VSSOP8 footprint; avoid splitting ground under the device; route OE and data lines differentially away from noisy power nets.
74AHCT2G125DC-Q10H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-VSSOP
74AHCT2G125DC-Q10H FAQ
1.How can I place an order for 74AHCT2G125DC-Q10H through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT2G125DC-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 74AHCT2G125DC-Q10H reliable?
The price and inventory of 74AHCT2G125DC-Q10H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT2G125DC-Q10H is usually 5 days.
3.What payment methods are accepted for 74AHCT2G125DC-Q10H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT2G125DC-Q10H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT2G125DC-Q10H?
74AHCT2G125DC-Q10H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT2G125DC-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 74AHCT2G125DC-Q10H?
For technical support, including 74AHCT2G125DC-Q10H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT2G125DC-Q10H requirements.
6.How does Aetrix verify that 74AHCT2G125DC-Q10H is sourced from the original manufacturer or authorized distributors?
All 74AHCT2G125DC-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 74AHCT2G125DC-Q10H meets industry standards.
7.What is the process for return or replacement of 74AHCT2G125DC-Q10H?
All 74AHCT2G125DC-Q10H units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT2G125DC-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 74AHCT2G125DC-Q10H part is unused and in its original packaging.
Return procedure for 74AHCT2G125DC-Q10H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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