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STMicroelectronics 74V2T02STR
- Part No.:
- 74V2T02STR
- Manufacturer:
- STMicroelectronics
- Category:
- Gates and Inverters
- Package:
- SOT-23-8
- Datasheet:
-
74V2T02STR.pdf
- Description:
- IC GATE NOR 2CH 2-INP SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:3,346
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Product details
Overview
74V2T02STR from STMicroelectronics is a high-speed CMOS dual 2-input NOR gate in SOT23-8L package, featuring 5.1 ns typical propagation delay at 5V, ±8 mA symmetrical output drive, and 1 µA max quiescent current at 25°C. It supports 5V-to-3V interfacing with input tolerance up to 7V independent of VCC, and is used in level-shifting logic interfaces within industrial control I/O modules.
For engineers reviewing the 74V2T02STR datasheet, 74V2T02STR pinout, 74V2T02STR application, or 74V2T02STR equivalent, key selection criteria include propagation delay symmetry (tPLH ≅ tPHL), power-down input protection, VIH/VIL compatibility with TTL, rail-to-rail input voltage acceptance (0–7V), and guaranteed 8 mA output sink/source at 4.5V.
Technical Context
The 74V2T02STR implements two independent NOR gates using sub-micron C2MOS technology with three-stage buffered output architecture, delivering high noise immunity and stable switching. Its inputs feature diode-clamped protection enabling operation across 0–7V regardless of VCC, and its symmetrical output stage ensures matched rise/fall times.
It operates over 4.5–5.5 V supply range with full functionality from –55°C to +125°C, and includes latch-up immunity enhancement per JEDEC JESD78. Input rise/fall time is specified up to 20 ns/V for robust transient rejection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| tPD (typ) | 5.1 ns at VCC = 5V, CL = 50 pF - enables sub-10 ns timing-critical combinational logic paths |
| VCC Range | 4.5 V to 5.5 V - supports industrial-grade 5V rails with ±10% tolerance |
| IOL / IOH (min) | 8 mA at VCC = 4.5 V - drives standard TTL loads without external buffers |
| VI Input Range | 0 V to 7 V - allows safe interfacing between 3.3V, 5V, and mixed-voltage systems |
| ICC (max) | 1 µA at TA = 25°C - enables ultra-low static power in battery-backed or standby circuits |
| tPLH ≅ tPHL | Matched propagation delays - ensures minimal duty-cycle distortion in clocked logic paths |
| CIN | 4 pF (min), 10 pF (max) - low capacitive loading preserves signal integrity on high-speed buses |
Pinout & Package
SOT23-8L (8-pin small outline transistor package), 1.95 mm pitch, 3.0 mm × 3.0 mm body, 0.55 mm max height, tape-and-reel packaging (TR).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5 | 1A, 2A | First input of Gate 1 and Gate 2 - accepts 0–7V logic levels independent of VCC |
| 2, 6 | 1B, 2B | Second input of Gate 1 and Gate 2 - enables dual 2-input NOR function per package |
| 3, 7 | 1Y, 2Y | Active-low outputs - drive loads up to 8 mA with matched sourcing/sinking capability |
| 4 | GND | Reference ground terminal - required for internal ESD and latch-up protection circuitry |
| 8 | VCC | Positive supply pin - powers both gates and internal input protection diodes |
Key Features
| Feature | Design Value |
|---|---|
| Input voltage tolerance | 0–7 V regardless of VCC - eliminates need for external level shifters in mixed-voltage designs |
| Power-down input protection | Clamped inputs remain functional and non-damaging when VCC = 0 V - supports hot-insertion and partial-power-down systems |
| Output symmetry | |IOH| = IOL ≥ 8 mA at 4.5 V - ensures consistent rise/fall times and reduced skew in feedback or oscillatory circuits |
| Latch-up immunity | Enhanced per JESD78 Class II - prevents destructive latch-up under transient overvoltage or ESD stress |
| Propagation delay balance | tPLH ≅ tPHL - maintains 50% duty cycle in gate-based clock dividers or pulse shaping networks |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Isolating and conditioning digital sensor signals (e.g., door lock status, seat position) before microcontroller input. IC Role / Device Role / Timing Role: Dual NOR gate performs active-low signal inversion and wired-OR combining of multiple switch inputs. Use Value: 7V-tolerant inputs accept direct connection to 12V automotive switches; 5.1 ns delay ensures real-time response within 100 µs control loops. | Use Scenario: Implementing fail-safe logic in lighting control subsystems where redundant inputs must disable outputs on fault. IC Role / Device Role / Timing Role: NOR gate acts as a hardware OR-NOT safety interlock - any high input forces low output to cut power to LED drivers. Use Value: Guaranteed 8 mA drive sinks relay coil or optocoupler LED directly; –55°C to +125°C rating meets AEC-Q100 Grade 1 requirements. |
| 5V/3.3V Voltage Translation | High-Reliability Data Acquisition Front-Ends |
Use Scenario: Interfacing legacy 5V microcontrollers with modern 3.3V ADCs or sensors requiring clean logic-level conversion. IC Role / Device Role / Timing Role: Level translator using NOR gate configured as inverter with pull-up - exploits 0–7V input range and 5V-compatible output swing. Use Value: Eliminates discrete resistor-divider or dedicated level shifter ICs; 1 µA ICC minimizes standby current in always-on monitoring nodes. | Use Scenario: Debouncing mechanical pushbuttons and limit switches in test equipment where EMI immunity is critical. IC Role / Device Role / Timing Role: NOR gate forms part of RC-debounce + Schmitt-trigger replacement network - uses internal hysteresis and input clamping. Use Value: Input clamp diodes absorb fast transients; 10 pF max CIN preserves bandwidth in >10 MHz sampling clock distribution paths. |
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 |
|---|---|---|---|
| SN74LVC2G02DBVR | 3.3V-only supply (1.65–5.5V), 3.7 ns tPD (typ), 32 mA IOL, no 7V input tolerance | Optimized for 3.3V systems only; lacks 5V-to-3V translation capability | Select when operating exclusively at 3.3V and higher speed is prioritized over voltage flexibility |
| 74AHC2G02GW,125 | 4.5–5.5V supply, 5.5 ns tPD (typ), 8 mA IOL, 0–5.5V input range (not 7V) | No overvoltage input protection; requires external clamping for >5.5V signals | Select when cost sensitivity outweighs need for 7V-tolerant inputs and latch-up immunity is less critical |
Compared with SN74LVC2G02DBVR and 74AHC2G02GW,125, the 74V2T02STR uniquely supports 0–7V inputs at 5V supply - essential for direct 12V switch interfacing - while maintaining matched propagation delays and industry-extended temperature operation without external components.
Availability
74V2T02STR is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and 5V/3.3V voltage translation circuits requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for 74V2T02STR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, digital, and mixed-signal ICs for industrial, automotive, and consumer applications.
The 74V series targets high-speed, low-power logic interface solutions for harsh-environment systems, emphasizing voltage tolerance, latch-up immunity, and extended temperature reliability.
FAQ
Can the 74V2T02STR operate with VCC = 0 V while inputs are active?
Yes - its power-down input protection allows inputs to be driven from 0 V to 7 V even when VCC = 0 V, without damage or leakage path formation. This enables hot-swap and partial-power-down system architectures where logic signals remain active during supply sequencing.
What is the maximum capacitive load the 74V2T02STR can drive reliably?
The device is characterized up to 50 pF load capacitance with 5.1 ns typical propagation delay at 5V. Driving >50 pF increases delay nonlinearly and may cause ringing; for >100 pF loads, add series termination or buffer stages per layout simulation and IBIS modeling.
Does the 74V2T02STR meet AEC-Q100 for automotive use?
While not officially AEC-Q100 qualified, the 74V2T02STR is rated for –55°C to +125°C operation and features enhanced latch-up immunity per JESD78 Class II - making it widely deployed in automotive body electronics where qualification is customer-defined and thermal robustness is verified in-system.
How does the 74V2T02STR handle input signals faster than its specified dt/dv limit?
Its specified input rise/fall time limit is 20 ns/V. Inputs exceeding this (e.g., <5 ns for 5V swing) risk false triggering or increased dynamic current due to internal node coupling; external RC filtering or slew-rate limiting is recommended for sub-5 ns edges in noise-sensitive environments.
74V2T02STR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74V
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- NOR Gate
- Number of Circuits:
- 2
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 1 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 7.5ns @ 5V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
74V2T02STR FAQ
1.How can I place an order for 74V2T02STR through Aetrix?
Please submit a Request for Quotation (RFQ) for 74V2T02STR 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 74V2T02STR reliable?
The price and inventory of 74V2T02STR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74V2T02STR is usually 5 days.
3.What payment methods are accepted for 74V2T02STR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74V2T02STR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74V2T02STR?
74V2T02STR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74V2T02STR 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 74V2T02STR?
For technical support, including 74V2T02STR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74V2T02STR requirements.
6.How does Aetrix verify that 74V2T02STR is sourced from the original manufacturer or authorized distributors?
All 74V2T02STR 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 74V2T02STR meets industry standards.
7.What is the process for return or replacement of 74V2T02STR?
All 74V2T02STR units undergo pre-shipment inspection (PSI). If there is an issue with 74V2T02STR, 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 74V2T02STR part is unused and in its original packaging.
Return procedure for 74V2T02STR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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