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Nexperia USA Inc. 74HCT2G02DP,125
- Part No.:
- 74HCT2G02DP,125
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
74HCT2G02DP,125.pdf
- Description:
- IC GATE NOR 2CH 2-INP 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,886
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Product details
Overview
74HCT2G02DP,125 from Nexperia is a dual 2-input NOR gate logic IC in TSSOP8 package, designed for TTL-level input interfacing at 4.5 V to 5.5 V supply. It delivers 12 ns typical propagation delay at VCC = 4.5 V, supports -40 °C to +125 °C operation, and features integrated input clamp diodes enabling safe interface with voltages exceeding VCC in industrial control signal conditioning.
For engineers reviewing the 74HCT2G02DP,125 datasheet, 74HCT2G02DP,125 pinout, 74HCT2G02DP,125 application, or 74HCT2G02DP,125 equivalent, key selection factors include TTL-compatible input thresholds (VIH = 2.0 V min), low dynamic power (CPD = 10 pF), robust ESD protection (HBM > 2000 V), and guaranteed operation across extended temperature range.
Technical Context
The 74HCT2G02DP,125 implements two independent NOR gates using silicon-gate CMOS technology with TTL-compatible input circuitry. Its input stage includes clamp diodes referenced to VCC and GND, allowing external current-limiting resistors for overvoltage-tolerant interfacing.
Propagation delay is characterized from nA/nB to nY with tpd = 12 ns (typ) at VCC = 4.5 V and CL = 15 pF; transition time tt is 6 ns (typ) under identical conditions. Output drive capability is ±4.0 mA at VCC = 4.5 V, with VOL ≤ 0.33 V and VOH ≥ 4.13 V under load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Dual 2-input NOR gate - provides two independent Boolean OR-NOT operations in one package |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL systems and stable operation across rail tolerance |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V - enables direct connection to legacy TTL outputs without level-shifting |
| Propagation Delay | 12 ns (typ) at VCC = 4.5 V, CL = 15 pF - supports reliable timing in sub-25 MHz digital control paths |
| Output Drive | ±4.0 mA at VCC = 4.5 V - sufficient to drive multiple 74-series inputs or small capacitive loads (≤ 15 pF) |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive modules and industrial motor drives |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - reduces risk of field failure during handling and PCB assembly |
Pinout & Package
TSSOP8 plastic thin shrink small outline package (SOT505-2); 8 leads; body width 3 mm; lead length 0.5 mm; pin 1 index located below marking code in lower-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A | First gate input A - accepts TTL-level logic signals; clamped to VCC/GND for overvoltage resilience |
| 2 | 1B | First gate input B - paired with 1A to form first NOR function; identical electrical characteristics |
| 3 | 1Y | First gate output Y - active-low NOR result; capable of sourcing/sinking 4.0 mA at 4.5 V |
| 4 | GND | Ground reference - must be low-impedance return path for all internal logic and I/O currents |
| 5 | 2Y | Second gate output Y - electrically isolated from 1Y; shares same VCC/GND but independent logic |
| 6 | 2B | Second gate input B - forms second NOR pair with pin 8; identical to 1B in voltage thresholds and loading |
| 7 | 2A | Second gate input A - mirrored functionality of pin 1; enables compact dual-gate implementation |
| 8 | VCC | Positive supply - powers both gates; requires local 100 nF ceramic decoupling adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V - eliminates need for external level translators when interfacing with 74LS/74F families |
| Input clamp diodes | Integrated anode-to-VCC and cathode-to-GND diodes - permit use of series current-limiting resistors for safe interface to 12 V control signals |
| High noise immunity | Typical noise margin > 1.2 V at VCC = 5 V - suppresses false triggering in electrically noisy PLC backplanes and motor drive environments |
| Extended temperature range | Specified from -40 °C to +125 °C - validated for continuous operation in automotive engine control units and industrial inverters |
| Low dynamic power | CPD = 10 pF - limits switching power to < 230 μW per gate at 1 MHz and 5 V, reducing thermal load in dense logic arrays |
Applications
| Industrial PLC Input Conditioning | Automotive Body Control Module Logic |
|---|---|
|
Use Scenario: Converting 12 V sensor switch signals into clean 5 V logic levels for microcontroller GPIO inputs in programmable logic controllers. IC Role / Device Role / Timing Role: Dual NOR gate performs wired-OR signal aggregation and polarity inversion while tolerating input transients up to 12 V via external current-limiting resistors. Use Value: Clamp diodes and TTL thresholds eliminate discrete level-shifter components, reducing BOM count by two devices per channel and improving long-term reliability. |
Use Scenario: Implementing door lock status arbitration and headlight override logic in vehicle body control units operating near engine compartments. IC Role / Device Role / Timing Role: One gate detects simultaneous lock/unlock command conflicts; the other validates headlight-on conditions before enabling relay drivers. Use Value: -40 °C to +125 °C qualification ensures deterministic behavior during hot-soak testing; 12 ns propagation enables real-time response within 200 μs safety-critical windows. |
| Legacy System Interface Adapter | Low-Power Sensor Signal Combiner |
|
Use Scenario: Bridging 5 V TTL bus signals from vintage test equipment to modern 3.3 V FPGA-based data acquisition systems. IC Role / Device Role / Timing Role: NOR gates invert and combine control strobes (e.g., RD# and WR#) to generate synchronized enable pulses compatible with newer logic families. Use Value: VIH/VIL alignment with TTL avoids timing skew introduced by resistor-based translators; 10 pF CPD minimizes added capacitive loading on source buses. |
Use Scenario: Combining fault alerts from three independent temperature sensors in battery management systems where space and power are constrained. IC Role / Device Role / Timing Role: Two NOR gates implement triple-redundant voting logic: output goes low only if ≥2 sensors report overtemperature. Use Value: 4.0 mA drive strength directly interfaces with optocoupler inputs; 20 μA max ICC at 5.5 V extends battery life in always-on monitoring modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 2-input NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G02DPWR | Lower VCC range (1.65–5.5 V); CMOS input thresholds (VIH = 70% VCC); 3.7 ns tpd at 3.3 V | Better suited for mixed-voltage 3.3 V/5 V systems; not TTL-compatible - requires level matching for legacy 5 V sources | Select when migrating to 3.3 V domains or requiring faster switching; avoid when interfacing directly with 74LS outputs |
| 74AHC2G02DP,125 | Wider VCC range (2.0–5.5 V); higher drive (±8 mA); 5.5 ns tpd at 5 V; no TTL input optimization | Superior speed and fanout in new 5 V designs; lacks dedicated TTL threshold tuning - marginal VIH margin with aging 74LS outputs | Prefer for high-speed 5 V logic where input compatibility is ensured by upstream buffers; not drop-in for TTL-sourced systems |
Compared with SN74LVC2G02DPWR and 74AHC2G02DP,125, the 74HCT2G02DP,125 uniquely guarantees interoperability with legacy TTL without external components, trades 3–4× higher propagation delay for deterministic input behavior across voltage and temperature extremes.
Availability
74HCT2G02DP,125 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and legacy system integration requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT2G02DP,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 focused on essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions optimized for automotive, industrial, and consumer applications.
The 74HCT2G02DP,125 belongs to Nexperia's HCT logic family, engineered specifically to bridge legacy TTL systems with modern CMOS processes while maintaining full JEDEC-compliant interoperability and extended temperature reliability.
FAQ
What is the maximum allowable input voltage when using external current-limiting resistors?
The 74HCT2G02DP,125 incorporates input clamp diodes to VCC and GND. With appropriate series resistors, inputs can safely tolerate up to 12 V continuously - verified by Nexperia's limiting values table specifying VI < -0.5 V or VI > VCC + 0.5 V is permissible if IIK ≤ ±20 mA. This enables direct interface with 12 V automotive switches without additional protection circuitry.
Does this device support mixed-voltage operation between 3.3 V and 5 V domains?
No - the 74HCT2G02DP,125 is specified only for 4.5 V to 5.5 V operation and requires TTL-compatible input thresholds. Applying 3.3 V signals risks unreliable VIH detection (minimum 2.0 V required), and operating below 4.5 V violates recommended conditions. For mixed-voltage systems, use SN74LVC2G02DPWR instead, which supports 1.65–5.5 V with scalable thresholds.
How does the -40 °C to +125 °C rating impact reliability in automotive under-hood applications?
This rating reflects full characterization and qualification per AEC-Q100 stress tests including HTOL, TC, and UHAST. At +125 °C ambient, the device maintains guaranteed VOH ≥ 3.7 V and VOL ≤ 0.4 V at 4.0 mA load, ensuring noise margins remain >1.0 V - critical for preventing spurious resets in engine control modules exposed to sustained high-temperature soak conditions.
Can unused gate inputs be left floating?
No - floating inputs cause increased ICC, unpredictable logic states, and potential oscillation due to noise coupling. Per Nexperia's application guidance, unused inputs must be tied to VCC or GND via ≤1 kΩ resistors. For NOR gates, tying both inputs of an unused gate to GND forces output high and minimizes power consumption and EMI susceptibility.
74HCT2G02DP,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- NOR Gate
- Number of Circuits:
- 2
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 20 µA
- Current - Output High, Low:
- 4mA, 4mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 12ns @ 4.5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
74HCT2G02DP,125 FAQ
1.How can I place an order for 74HCT2G02DP,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT2G02DP,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 74HCT2G02DP,125 reliable?
The price and inventory of 74HCT2G02DP,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT2G02DP,125 is usually 5 days.
3.What payment methods are accepted for 74HCT2G02DP,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT2G02DP,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT2G02DP,125?
74HCT2G02DP,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT2G02DP,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 74HCT2G02DP,125?
For technical support, including 74HCT2G02DP,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT2G02DP,125 requirements.
6.How does Aetrix verify that 74HCT2G02DP,125 is sourced from the original manufacturer or authorized distributors?
All 74HCT2G02DP,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 74HCT2G02DP,125 meets industry standards.
7.What is the process for return or replacement of 74HCT2G02DP,125?
All 74HCT2G02DP,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT2G02DP,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 74HCT2G02DP,125 part is unused and in its original packaging.
Return procedure for 74HCT2G02DP,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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