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Diodes Incorporated 74AHCT1G00QSE-7
- Part No.:
- 74AHCT1G00QSE-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74AHCT1G00QSE-7.pdf
- Description:
- IC GATE NAND 1CH 2-INP SOT353
- Quantity:
- Payment:
- Shipping:
Inventory:1,724
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Product details
Overview
74AHCT1G00QSE-7 from Diodes Incorporated is an automotive-grade single 2-input positive NAND gate in SOT353 package, operating from 4.5V to 5.5V with ±8mA output drive at 5.0V, Schmitt-trigger inputs for noise immunity, and AEC-Q100 Grade 1 qualification (−40°C to +125°C) for under-hood control logic.
For engineers reviewing the 74AHCT1G00QSE-7 datasheet, 74AHCT1G00QSE-7 pinout, 74AHCT1G00QSE-7 application, or 74AHCT1G00QSE-7 equivalent, this device serves as a robust, low-power logic gate for automotive signal conditioning, industrial I/O interfacing, and high-reliability timing control where input slew tolerance and thermal stability are critical.
Technical Context
This CMOS NAND gate implements standard Boolean Y = A·B with push-pull output stage, supporting rail-to-rail logic levels and compatible with TTL input thresholds. Its Schmitt-trigger inputs provide hysteresis (typ. 0.4V), enabling reliable operation with slow-rising signals common in sensor interfaces and mechanical switch debouncing.
The device features balanced propagation delays (tPD = 3.6 ns typ. @ CL = 15 pF, VCC = 5V), matched high/low drive strength (IOH/IOL = ±8 mA), and low static current (ICC ≤ 40 μA over full temp range), making it suitable for deterministic timing paths in automotive body controllers and industrial PLC modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Single 2-input positive NAND (Y = A·B) |
| Supply Voltage Range | 4.5V to 5.5V - ensures compatibility with automotive 5V rails and brown-out resilience |
| Output Drive | ±8mA at 5.0V - sufficient to directly drive multiple 74-series inputs or small LEDs without buffering |
| Propagation Delay | 3.6 ns typical (CL = 15 pF, VCC = 5V) - supports >100 MHz toggle rates in short-path logic |
| Input Hysteresis | ~0.4V (Schmitt-trigger) - rejects noise on slow-switching signals like door latch or HVAC sensor outputs |
| Operating Temperature | −40°C to +125°C (Grade 1) - qualified for engine bay, transmission control, and ADAS ECU environments |
| ESD Rating | 2 kV HBM, 1 kV CDM - exceeds AEC-Q100-002/-011 for assembly-line robustness |
Pinout & Package
SOT353 (2.15 mm × 2.10 mm × 1.10 mm, 0.65 mm pitch) - ultra-compact surface-mount package with exposed pad not present; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data Input | First NAND input; Schmitt-triggered, tolerant of slow edges up to 20 ns/V |
| 2 (B) | Data Input | Second NAND input; identical electrical behavior to Pin 1 |
| 3 (GND) | Ground Reference | Return path for all internal circuitry; must be low-impedance for stable noise margin |
| 4 (Y) | Data Output | Inverting push-pull output; sinks or sources up to ±8 mA at 5V |
| 5 (VCC) | Power Supply | Positive supply rail; decoupling capacitor (100 nF) required within 5 mm |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Enables clean switching with noisy or slow-rising signals (e.g., thermistor-based HVAC feedback) |
| AEC-Q100 Grade 1 qualification | Validated for continuous operation at −40°C to +125°C ambient, including thermal cycling and vibration stress |
| CMOS low-power consumption | ICC ≤ 40 μA max over full temperature range - reduces thermal load in sealed ECUs |
| Input voltage range beyond VCC | VI rated −0.5V to 6.5V - allows safe interfacing with 3.3V logic or transient-tolerant sensor outputs |
| Matched rise/fall propagation | tPLH/tPHL balanced within 0.3 ns - preserves duty cycle integrity in clocked enable paths |
Applications
| Engine Control Unit (ECU) Signal Conditioning | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Debouncing mechanical ignition switch signals before feeding to microcontroller GPIO. IC Role / Device Role / Timing Role: NAND gate configured as inverter with Schmitt input to reject contact bounce and EMI. Use Value: Eliminates need for external RC filters or firmware debouncing, reducing BOM count and interrupt latency. |
Use Scenario: Enabling power to door lock actuators only when both safety interlock and command signals are asserted. IC Role / Device Role / Timing Role: Logic-level AND function (via NAND + inverter) for fail-safe actuator enable gating. Use Value: Provides hardware-enforced safety condition without MCU involvement, meeting ASIL-B functional safety requirements. |
| Industrial PLC Digital Input Interface | ADAS Camera Power Sequencing |
Use Scenario: Converting 24V field sensor signals to 5V logic-compatible levels using resistive divider + NAND gate. IC Role / Device Role / Timing Role: Level-shifting buffer with hysteresis to suppress line noise in factory-floor wiring. Use Value: Tolerates ±10% supply variation and 100 mV common-mode noise, improving system uptime in electrically noisy plants. |
Use Scenario: Generating synchronized enable pulses for image sensor and ISP power rails during camera boot. IC Role / Device Role / Timing Role: Timing combiner that gates master reset with clock-ready signal before releasing hold state. Use Value: Ensures strict power-up sequence compliance (e.g., sensor before ISP), preventing initialization failures in vision systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AHCT1G00DBVR | Same logic function and specs, but SOT-23-5 package (3.0 × 2.8 mm); higher θJA (184°C/W vs. 385°C/W) | Better thermal performance in space-constrained layouts; lower board footprint cost in high-volume SMT lines | Select for designs requiring easier rework or compatibility with legacy SOT-23 tooling |
| MC74VHC1G00DTT1G | Wider VCC range (2.0–5.5V); lower drive (±8mA still met), but no AEC-Q100 qualification | Acceptable for non-automotive industrial use; lacks Grade 1 temp rating and PPAP documentation | Select only for cost-sensitive consumer or commercial applications where automotive qualification is unnecessary |
Compared with SN74AHCT1G00DBVR and MC74VHC1G00DTT1G, the 74AHCT1G00QSE-7 uniquely delivers AEC-Q100 Grade 1 reliability in the smallest footprint (SOT353), enabling dense placement in automotive domain controllers while maintaining full automotive change control and traceability.
Availability
74AHCT1G00QSE-7 is available at Aetrix Electronics and suitable for automotive engine management, industrial PLC I/O modules, and ADAS camera subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AHCT1G00QSE-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets with ISO/TS 16949 and IATF 16949 certified facilities.
The 74AHCT logic family targets automotive and industrial applications requiring robust 5V logic interoperability, low power, and guaranteed performance across extreme temperatures - specifically engineered for ECU, BCM, and sensor interface modules.
FAQ
Is the 74AHCT1G00QSE-7 pin-compatible with other 5-pin logic gates in SOT353?
Yes - it follows the industry-standard SOT353 pinout (A-B-GND-Y-VCC) used by Diodes, Nexperia, and ON Semiconductor for single-gate logic devices. This enables direct substitution in existing PCB layouts designed for compatible 74AHCT or 74LVC series parts without redesign.
Can unused inputs be left floating in automotive applications?
No - per datasheet Note 7, unused inputs must be tied to VCC or GND. Floating inputs risk oscillation, increased ICC, and electromagnetic emissions, violating CISPR 25 Class 5 requirements for automotive electronics. A 10 kΩ pull-up/down resistor is recommended for robustness.
What is the maximum capacitive load this gate can drive reliably?
The device is characterized up to 50 pF (tPD = 7.9 ns max at −40°C to +85°C). For loads >50 pF, propagation delay increases linearly and output transition times degrade; use a buffer stage if driving >100 pF or long PCB traces (>5 cm) to maintain signal integrity.
Does the Schmitt-trigger input affect logic threshold voltages?
Yes - VIH is 2.0 V min and VIL is 0.8 V max at VCC = 5V, with hysteresis ΔV ≈ 0.4 V. This means the rising threshold is ~2.2 V and falling threshold ~1.8 V, providing noise immunity against transients ≤200 mV on input lines without additional filtering.
74AHCT1G00QSE-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74AHCT
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- NAND Gate
- Number of Circuits:
- 1
- 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:
- 7.9ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-353
74AHCT1G00QSE-7 FAQ
1.How can I place an order for 74AHCT1G00QSE-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT1G00QSE-7 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 74AHCT1G00QSE-7 reliable?
The price and inventory of 74AHCT1G00QSE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT1G00QSE-7 is usually 5 days.
3.What payment methods are accepted for 74AHCT1G00QSE-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT1G00QSE-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT1G00QSE-7?
74AHCT1G00QSE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT1G00QSE-7 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 74AHCT1G00QSE-7?
For technical support, including 74AHCT1G00QSE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT1G00QSE-7 requirements.
6.How does Aetrix verify that 74AHCT1G00QSE-7 is sourced from the original manufacturer or authorized distributors?
All 74AHCT1G00QSE-7 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 74AHCT1G00QSE-7 meets industry standards.
7.What is the process for return or replacement of 74AHCT1G00QSE-7?
All 74AHCT1G00QSE-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT1G00QSE-7, 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 74AHCT1G00QSE-7 part is unused and in its original packaging.
Return procedure for 74AHCT1G00QSE-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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