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Home > Products > Integrated Circuits (ICs) > Logic > Gates and Inverters

Diodes Incorporated 74AHCT1G32QW5-7

Name: 74AHCT1G32QW5-7
Brand: Diodes Incorporated
SKU: 74AHCT1G32QW5-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74AHCT1G32QW5-7

Manufacturer:: Diodes Incorporated

Category:: Gates and Inverters

Package:: SC-74A, SOT-753

Datasheet:: 74AHCT1G32QW5-7.pdf

Description:: IC GATE OR 1CH 2-INP SOT25

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Product details

Overview

74AHCT1G32QW5-7 from Diodes Incorporated is an automotive-grade single 2-input positive OR gate in SOT25 package, operating from 4.5V to 5.5V supply, delivering ±8mA output drive at 5.0V with propagation delay as low as 1.0ns (CL = 15pF), and qualified per AEC-Q100 Grade 1 (−40°C to +125°C) for under-hood automotive logic interfacing.

For engineers reviewing the 74AHCT1G32QW5-7 datasheet, 74AHCT1G32QW5-7 pinout, 74AHCT1G32QW5-7 application, or 74AHCT1G32QW5-7 equivalent, key selection criteria include its Schmitt-trigger input tolerance for slow-rising signals, balanced high/low drive capability, latch-up immunity (>100mA), and IATF 16949-manufactured traceability for mission-critical automotive control modules.

Technical Context

This device implements the Boolean OR function Y = A + B using advanced CMOS technology optimized for 5V automotive systems. It features Schmitt-trigger inputs enabling robust operation with slow or noisy input transitions, and operates across full Grade 1 temperature range without derating.

All inputs tolerate voltages beyond V_CC (−0.5V to 6.5V), supporting mixed-voltage interface scenarios. Propagation delays are tightly balanced between rising and falling edges (t_PLH ≈ t_PHL), and output drive strength remains symmetrical (±8mA at 5V), ensuring predictable timing in combinatorial logic paths.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Positive OR gate: Y = A + B - enables active-high enable/merge logic in control signal routing
Supply Voltage Range	4.5V to 5.5V - matches nominal 5V automotive bus with ±10% tolerance for load-dump resilience
Output Drive	±8mA at V_CC = 5V - sufficient to directly drive multiple 74AHCT inputs or small LEDs without buffering
Propagation Delay	1.0–9.0ns (CL = 15–50pF, −40°C to +125°C) - supports >100MHz toggle rates in clean signal environments
Input Thresholds	V_IL ≤ 0.8V, V_IH ≥ 2.0V at 5V - provides 1.2V noise margin against TTL and CMOS-compatible sources
ESD Protection	2kV HBM, 1kV CDM - exceeds AEC-Q100-002/-011 requirements for assembly-line robustness
Operating Temperature	−40°C to +125°C (Grade 1) - validated for engine control units, body controllers, and ADAS sensor interfaces

Pinout & Package

SOT25 (3.0mm × 2.8mm × 1.2mm, 0.95mm lead pitch) surface-mount package with moisture sensitivity level 1 (J-STD-020) and matte tin-plated leads.

Pin/Terminal	Circuit Role	Design Meaning
1 - A	Data Input	Non-inverting logic input with Schmitt-trigger threshold; accepts overvoltage up to 6.5V
2 - B	Data Input	Second non-inverting logic input; electrically identical to Pin 1, enabling dual-signal OR merge
3 - GND	Ground Reference	Return path for all internal currents; must be connected to system ground plane for EMI control
4 - Y	Data Output	Push-pull CMOS output capable of sourcing/sinking ±8mA; compatible with 74AHCT/74AHC loads
5 - V_CC	Power Supply	Primary 4.5–5.5V supply rail; requires local 100nF ceramic decoupling within 5mm

Key Features

Feature	Design Value
Schmitt-trigger inputs	Enables reliable switching with slow-rising signals (e.g., mechanical switch debouncing or RC-filtered sensors)
Grade 1 AEC-Q100 qualification	Validated for automotive use with full PPAP documentation, IATF 16949 manufacturing, and lifetime reliability data
Input voltage range beyond V_CC	Supports interfacing with higher-voltage peripherals (up to 6.5V) without level-shifting circuitry
Latch-up immunity >100mA	Guarantees no destructive latch-up during transient overvoltage or hot-swap events in vehicle subsystems
CMOS low-power static consumption	ICC ≤ 40μA max over full temperature range - suitable for always-on monitoring circuits with microamp budget

Applications

Engine Control Unit (ECU) Signal Merging

Body Control Module (BCM) Enable Logic

Use Scenario: Combining crankshaft and camshaft position fault flags into a unified engine fault indicator signal.

IC Role / Device Role / Timing Role: Single-gate OR function performing real-time logical OR of two asynchronous safety-critical status bits.

Use Value: Eliminates need for larger logic ICs or microcontroller GPIO polling, reducing BOM count and failure modes in ASIL-B-relevant paths.

Use Scenario: Enabling power to door lock actuators only when both ignition ON and door unlock request are asserted.

IC Role / Device Role / Timing Role: Fast-response combinatorial gate generating actuator enable pulse with sub-10ns timing uncertainty.

Use Value: Provides deterministic, zero-software-latency enable control independent of MCU firmware state or interrupt latency.

ADAS Camera Power Sequencing

Automotive Infotainment System Reset Coordination

Use Scenario: OR-ing thermal shutdown and ISP error signals to trigger immediate camera module power-down.

IC Role / Device Role / Timing Role: Fault-propagation gate with Schmitt-trigger inputs tolerating noisy analog sensor outputs.

Use Value: Prevents false triggers from slow-rising thermal alerts while ensuring <10ns response to hard faults.

Use Scenario: Merging MCU reset and audio codec reset requests to generate synchronized system-level reset pulse.

IC Role / Device Role / Timing Role: Glue logic element providing glitch-free reset assertion across heterogeneous subsystems.

Use Value: Avoids race conditions during cold start by guaranteeing simultaneous reset assertion to all dependent ICs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2-input OR gate applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74AHCT1G32DBVR	Same logic function and 4.5–5.5V supply, but SOT-23-5 package (2.92mm × 1.6mm); slightly lower thermal resistance (θ_JA = 172°C/W).	Preferred for space-constrained PCBs where footprint area < 4.7mm² is required; not rated for Grade 1 automotive temp range.	Select when board area is critical and ambient temperature stays below +105°C (e.g., cabin infotainment).
74LVC1G32GW,125	Lower voltage range (1.65–5.5V); CMOS inputs without Schmitt trigger; ±32mA drive at 3.3V.	Optimized for 3.3V industrial logic; lacks AEC-Q100 qualification and automotive temperature validation.	Choose for cost-sensitive 3.3V systems where input signal slew rate is controlled and automotive qualification is unnecessary.

Compared with SN74AHCT1G32DBVR and 74LVC1G32GW,125, the 74AHCT1G32QW5-7 uniquely combines Grade 1 automotive qualification, Schmitt-trigger noise immunity, and SOT25's thermal performance (θ_JA = 184°C/W), making it the only option qualified for under-hood deployment with unconditioned input signals.

Availability

74AHCT1G32QW5-7 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera subsystems, and infotainment reset coordination requiring stable component supply across automotive production lifecycles.

Supply support for 74AHCT1G32QW5-7 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.

This device belongs to Diodes' AHCT logic family-designed specifically for 5V automotive applications requiring AEC-Q100 qualification, robust ESD/latch-up immunity, and guaranteed operation across extended temperature ranges.

FAQ

Is the 74AHCT1G32QW5-7 pin-compatible with standard 74-series OR gates?

No-it is a single-gate SOT25 device with 5 pins (A, B, GND, Y, V_CC), unlike legacy DIP-14 or SOIC-14 packages housing multiple gates. Its pinout follows JEDEC MO-178AB (SOT25) standard and is not mechanically or electrically interchangeable with multi-gate 74-series packages.

Can unused inputs be left floating?

No-unused inputs must be tied to V_CC or GND per the datasheet's recommended operating conditions. Floating inputs may cause increased ICC, oscillation, or unpredictable output states due to CMOS input stage sensitivity, especially under temperature extremes.

What is the maximum capacitive load this OR gate can drive reliably?

The device is characterized up to 50pF (t_PD ≤ 10.0ns at −40°C to +125°C). Driving >50pF increases propagation delay nonlinearly and may exceed output current limits; for heavier loads, add a buffer stage or verify timing margins with actual board parasitics.

Does this part support mixed-voltage interfacing (e.g., 3.3V inputs with 5V supply)?

Yes-inputs tolerate −0.5V to 6.5V regardless of V_CC, so 3.3V logic signals are fully compatible with 5V operation. However, output swing remains rail-to-rail (0V to 5V), requiring level translation if driving 3.3V-only inputs downstream.

74AHCT1G32QW5-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: 74AHCT

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: OR 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-25

74AHCT1G32QW5-7 FAQ

1.How can I place an order for 74AHCT1G32QW5-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74AHCT1G32QW5-7 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 74AHCT1G32QW5-7 reliable?

The price and inventory of 74AHCT1G32QW5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT1G32QW5-7 is usually 5 days.

3.What payment methods are accepted for 74AHCT1G32QW5-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT1G32QW5-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74AHCT1G32QW5-7?

74AHCT1G32QW5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74AHCT1G32QW5-7 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 74AHCT1G32QW5-7?

For technical support, including 74AHCT1G32QW5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT1G32QW5-7 requirements.

6.How does Aetrix verify that 74AHCT1G32QW5-7 is sourced from the original manufacturer or authorized distributors?

All 74AHCT1G32QW5-7 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 74AHCT1G32QW5-7 meets industry standards.

7.What is the process for return or replacement of 74AHCT1G32QW5-7?

All 74AHCT1G32QW5-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT1G32QW5-7, 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 74AHCT1G32QW5-7 part is unused and in its original packaging.

Return procedure for 74AHCT1G32QW5-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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