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NXP Semiconductors 74HCT2G08GD,125
- Part No.:
- 74HCT2G08GD,125
- Manufacturer:
- NXP Semiconductors
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
74HCT2G08GD,125.pdf
- Description:
- IC GATE AND
- Quantity:
- Payment:
- Shipping:
Inventory:4,190
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Product details
Overview
74HCT2G08GD,125 from Nexperia is a dual 2-input AND gate logic IC with TTL-compatible input thresholds, operating from 4.5 V to 5.5 V supply, delivering propagation delay of 14 ns (typ) at 5 V and output drive capability of ±4 mA, used for digital signal conditioning in industrial control I/O modules.
For engineers reviewing the 74HCT2G08GD,125 datasheet, 74HCT2G08GD,125 pinout, 74HCT2G08GD,125 application, or 74HCT2G08GD,125 equivalent, this device serves as a low-power, temperature-stable combinational logic element requiring precise input voltage compatibility, fast switching in noise-prone environments, and compact packaging for space-constrained PCB layouts.
Technical Context
This device implements two independent AND gates in a single monolithic CMOS structure with integrated input clamp diodes enabling safe interfacing to voltages exceeding VCC when current-limiting resistors are used. It operates across -40 °C to +125 °C with guaranteed static and dynamic performance over full temperature and voltage range.
The 74HCT variant uses TTL-level input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), ensuring direct compatibility with legacy 5 V TTL outputs, while maintaining CMOS power efficiency and high noise immunity (>400 mV noise margin at 5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures interoperability with standard 5 V TTL systems without level translation. |
| Propagation Delay | 14 ns (typ) at VCC = 5 V, CL = 15 pF - enables reliable operation in 35 MHz+ synchronous logic paths. |
| Output Drive | ±4.0 mA at VCC = 4.5 V - sufficient to drive one 74-series TTL input or multiple CMOS loads. |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - matches standard TTL output levels for seamless interface. |
| 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 - supports robust handling during automated assembly and field service. |
| Power Dissipation | CPD = 10 pF - enables accurate dynamic power estimation (PD = CPD × VCC² × fi × N) for thermal design. |
Pinout & Package
XSON8 (SOT996-2) plastic extremely thin small outline no-lead package; 8 terminals; body size 2.0 mm × 1.25 mm; 0.5 mm pitch; exposed thermal pad; lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A | First AND gate input A - accepts TTL-level signals; clamped to protect against overvoltage. |
| 2 | 1B | First AND gate input B - identical electrical behavior to Pin 1; dual inputs enable compact logic reduction. |
| 3 | 1Y | First AND gate output Y - drives downstream logic with defined VOH/VOL under load conditions. |
| 4 | GND | Ground reference - must be low-impedance connection to minimize switching noise coupling. |
| 5 | 2Y | Second AND gate output Y - electrically isolated from 1Y; supports independent fan-out routing. |
| 6 | 2B | Second AND gate input B - shares same input structure and timing as Pins 1/2; no internal crosstalk. |
| 7 | 2A | Second AND gate input A - symmetrical layout allows mirrored PCB placement for signal integrity. |
| 8 | VCC | Positive supply - requires local 100 nF ceramic decoupling adjacent to pin for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | Enables direct connection to legacy 5 V TTL outputs without level shifters or pull-ups. |
| Clamp diode protection | Allows safe interface to signals up to VCC + 0.5 V using external current-limiting resistors. |
| High noise immunity | Guaranteed >400 mV DC noise margin at 5 V supply ensures reliable operation in EMI-heavy environments. |
| Extended temperature range | Full functionality from -40 °C to +125 °C supports deployment in motor drives and power converters. |
| Low dynamic power | 10 pF CPD enables sub-mW dynamic consumption at 1 MHz toggle rate, reducing system heat load. |
Applications
| Industrial PLC I/O Modules | Automated Test Equipment (ATE) Signal Gating |
|---|---|
|
Use Scenario: Isolating and enabling sensor data streams before ADC sampling in modular I/O racks. IC Role / Device Role / Timing Role: Dual AND gate performing synchronized enable gating on two independent analog channel paths. Use Value: Eliminates need for discrete logic or microcontroller GPIO toggling, reducing firmware overhead and latency jitter. |
Use Scenario: Controlling stimulus delivery timing between DUT and measurement circuitry in boundary-scan test fixtures. IC Role / Device Role / Timing Role: Logic-level AND gate synchronizing clock-enable and pattern-valid signals for precise test vector launch. Use Value: Provides deterministic 14 ns propagation delay with minimal skew between channels, critical for setup/hold compliance. |
| Motor Control Feedback Conditioning | Embedded System Power Sequencing |
|
Use Scenario: Combining hall-effect sensor edges with PWM enable signals to validate rotor position before commutation. IC Role / Device Role / Timing Role: Real-time combinatorial logic verifying dual safety conditions prior to gate driver activation. Use Value: Delivers fail-safe hardware interlock with <20 ns worst-case delay, independent of software execution timing. |
Use Scenario: Enabling auxiliary power rails only after primary rail stabilization and FPGA configuration completion. IC Role / Device Role / Timing Role: Dual-input AND gate acting as hardware AND of POWER_OK and CONFIG_DONE signals. Use Value: Prevents race conditions during cold start by enforcing strict logical dependency between subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 2-input AND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC2G08GW,125 | CMOS input thresholds (VIH = 0.7×VCC), wider 1.65–5.5 V supply range, 3.7 ns tpd at 3.3 V. | Better suited for mixed-voltage 3.3 V/5 V systems but lacks native TTL compatibility. | Select when interfacing with 3.3 V microcontrollers and lower supply voltages dominate the design. |
| SN74LVC2G08DCUR | Same logic function, 3.3 V optimized, SOT-23-8 package, higher output drive (±24 mA), no clamp diodes. | Requires external protection for overvoltage inputs; larger footprint than XSON8. | Choose when higher sink/source current is needed and board space permits larger package. |
Compared with 74HCT2G08GD,125, the LVC variants offer faster speed and broader voltage support but sacrifice direct TTL interoperability and compact XSON8 form factor-making the HCT version optimal for legacy 5 V systems where size and interface simplicity are prioritized.
Availability
74HCT2G08GD,125 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor control feedback conditioning, and embedded system power sequencing requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for 74HCT2G08GD,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 specializing in high-performance, energy-efficient logic, analog, and discrete components, headquartered in Nijmegen, Netherlands.
The 74HCT series targets industrial and automotive-adjacent applications requiring TTL-compatible logic with extended temperature range and robust ESD performance, emphasizing reliability in harsh environments.
FAQ
What is the maximum recommended supply voltage for 74HCT2G08GD,125?
The absolute maximum supply voltage is +7.0 V, but the recommended operating range is strictly 4.5 V to 5.5 V per JEDEC JESD7A. Operation above 5.5 V voids guaranteed timing and DC specifications, and may accelerate electromigration in the XSON8 package's fine-pitch interconnects.
Can 74HCT2G08GD,125 interface directly with 3.3 V CMOS outputs?
No-its TTL input thresholds require minimum 2.0 V for VIH, making it incompatible with standard 3.3 V CMOS outputs (typically VOH ≈ 3.0 V but with weak drive). A level shifter or 74LVC-series alternative is required for reliable interfacing with 3.3 V logic families.
Is the exposed thermal pad on the XSON8 package electrically connected?
No-the thermal pad on SOT996-2 (XSON8) is non-functional and must be left floating or grounded solely for mechanical stability and thermal conduction; it is not internally connected to GND or any signal node per Nexperia's package drawing and die construction.
Does 74HCT2G08GD,125 support hot-swap or live-insertion?
No-it lacks bus-hold or Ioff protection features. Applying VCC before inputs or removing power while inputs are active risks latch-up or excessive ICC due to forward-biased clamp diodes. Power sequencing must follow VCC-first, inputs-last protocol.
74HCT2G08GD,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Circuits:
- -
- Number of Inputs:
- -
- Features:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Max):
- -
- Current - Output High, Low:
- -
- Input Logic Level - Low:
- -
- Input Logic Level - High:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74HCT2G08GD,125 FAQ
1.How can I place an order for 74HCT2G08GD,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT2G08GD,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 74HCT2G08GD,125 reliable?
The price and inventory of 74HCT2G08GD,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT2G08GD,125 is usually 5 days.
3.What payment methods are accepted for 74HCT2G08GD,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT2G08GD,125 transactions.
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4.How is shipping managed for 74HCT2G08GD,125?
74HCT2G08GD,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT2G08GD,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 74HCT2G08GD,125?
For technical support, including 74HCT2G08GD,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT2G08GD,125 requirements.
6.How does Aetrix verify that 74HCT2G08GD,125 is sourced from the original manufacturer or authorized distributors?
All 74HCT2G08GD,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 74HCT2G08GD,125 meets industry standards.
7.What is the process for return or replacement of 74HCT2G08GD,125?
All 74HCT2G08GD,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT2G08GD,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 74HCT2G08GD,125 part is unused and in its original packaging.
Return procedure for 74HCT2G08GD,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT2G08GD,125 Tags
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