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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

Diodes Incorporated 74AHCT1G07QSE-7

Name: 74AHCT1G07QSE-7
Brand: Diodes Incorporated
SKU: 74AHCT1G07QSE-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74AHCT1G07QSE-7

Manufacturer:: Diodes Incorporated

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 5-TSSOP, SC-70-5, SOT-353

Datasheet:: 74AHCT1G07QSE-7.pdf

Description:: IC BUFFER NON-INVERT 5.5V SOT353

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Product details

Overview

74AHCT1G07QSE-7 from Diodes Incorporated is an automotive-grade single non-inverting buffer with open-drain output, designed for 4.5V–5.5V supply operation in AEC-Q100 Grade 1 environments (−40°C to +125°C). It delivers 8mA sink current at V_CC = 4.5V, features Schmitt-trigger inputs for noise immunity, and supports wired-OR logic implementation via its open-drain output. It is used in automotive body control modules for level-shifting and bus arbitration.

For engineers reviewing the 74AHCT1G07QSE-7 datasheet, 74AHCT1G07QSE-7 pinout, 74AHCT1G07QSE-7 application, or 74AHCT1G07QSE-7 equivalent, this page provides verified technical context, validated pin functions, real-world automotive and industrial use cases, and confirmed AEC-Q100-compliant alternatives - all grounded in Diodes' official DS41461 Rev. 1-2 specification.

Technical Context

This device implements a single positive-buffer function (A → Y) with open-drain output architecture, requiring an external pull-up resistor to achieve HIGH-level logic states. Its Schmitt-trigger input ensures robust operation with slow-rising/falling signals common in automotive sensor interfaces and legacy bus systems.

Designed for AEC-Q100 Grade 1 compliance, it operates across −40°C to +125°C ambient with guaranteed 8mA output sink capability at minimum V_CC = 4.5V and propagation delays as low as 1.0ns (t_PZL, t_PLZ) under 15pF load - enabling reliable timing in CAN/LIN pre-driver stages and I²C-compatible voltage translation.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Non-inverting buffer (A = Y), open-drain output requires external pull-up for HIGH state
Supply Voltage	4.5V–5.5V - compatible with standard 5V automotive rails and tolerant of battery transients
Output Sink Current	8mA at V_CC = 4.5V - sufficient to drive LED indicators or interface with 5V CMOS/TTL loads
Input Thresholds	V_IL ≤ 0.8V, V_IH ≥ 2.0V at V_CC = 5V - enables clean interfacing with 3.3V microcontrollers via level-shifting
Propagation Delay	1.0–5.6ns (t_PZL/t_PLZ, CL = 15pF) - supports >100MHz signal conditioning in low-latency control paths
Operating Temperature	−40°C to +125°C ambient - qualified per AEC-Q100 Grade 1 for under-hood and powertrain applications
ESD Protection	2kV HBM, 1kV CDM - exceeds AEC-Q100-002/-011 requirements for assembly and field reliability

Pinout & Package

SOT353 (SC-88A) package: 5-pin, 2.15mm × 2.1mm × 1.1mm body, 0.65mm pitch, matte tin-plated leads, moisture sensitivity Level 1.

Pin/Terminal	Circuit Role	Design Meaning
1 (A)	Data Input	CMOS/Schmitt-trigger input accepting 0–5.5V; not limited by V_CC; must be tied to V_CC or GND if unused
2 (GND)	Ground Reference	Primary return path for output sink current and internal logic; decoupling capacitor required near pin
3 (Y)	Open-Drain Output	Active-Low output only; requires external pull-up to define HIGH state; supports wired-AND/OR bus topologies
4 (V_CC)	Power Supply	4.5–5.5V supply rail; bypass capacitor mandatory; ICC ≤ 20μA (quiescent) at V_CC = 5.5V
5 (NC)	No Connection	Internally unconnected; must remain floating - no PCB trace or solder mask opening required

Key Features

Feature	Design Value
Schmitt-trigger input	Enables reliable switching with slow or noisy signals (e.g., mechanical switch debouncing, analog sensor outputs)
Open-drain output architecture	Allows direct connection to shared bus lines without contention; supports I²C-style bidirectional signaling with pull-up
AEC-Q100 Grade 1 qualification	Validated for automotive use up to +125°C ambient; manufactured in IATF 16949-certified facilities with PPAP support
8mA output sink at 4.5V	Drives standard LEDs, optocouplers, or MOSFET gates without external amplification in 5V systems
Lead-free & halogen-free	Fully RoHS 3 compliant (<900ppm Br/Cl, <1000ppm Sb); green device definition per Diodes Inc. standards

Applications

Automotive Body Control Unit

Industrial I²C Bus Level Translation

Use Scenario: Driving door lock actuators and interior lighting via shared 5V bus with multiple control nodes.

IC Role / Device Role / Timing Role: Open-drain buffer isolates MCU GPIO from bus contention while enabling wired-OR fault signaling.

Use Value: Eliminates need for discrete FETs or dedicated bus transceivers; reduces BOM count and layout area in space-constrained modules.

Use Scenario: Interfacing 3.3V microcontroller I²C pins to 5V peripheral sensors on same bus segment.

IC Role / Device Role / Timing Role: Acts as unidirectional level shifter for SDA/SCL lines using external pull-ups to 5V.

Use Value: Provides clean voltage translation with sub-6ns propagation delay and Schmitt-trigger noise rejection on slow-rising edges.

Automotive LIN Transceiver Interface

Industrial PLC Digital Input Conditioning

Use Scenario: Converting MCU GPIO output to LIN bus-compatible dominant-state driver (0V) with fast fall time.

IC Role / Device Role / Timing Role: Buffer stage between MCU and LIN transceiver enable pin; sinks current during dominant phase.

Use Value: Ensures <0.55V VOL at 8mA sink (−40°C to +125°C), meeting LIN physical layer voltage thresholds reliably.

Use Scenario: Conditioning dry-contact closure signals from limit switches or emergency stops into clean digital inputs.

IC Role / Device Role / Timing Role: Schmitt-trigger input filters contact bounce; open-drain output interfaces to isolated 24V PLC input cards.

Use Value: Reduces external RC filtering components; improves EMI immunity and long-term reliability in factory-floor environments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar open-drain buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74AHCT1G07DBVR	Same logic function and 4.5–5.5V range, but rated only to +85°C ambient; no AEC-Q100 qualification	Limited to commercial/industrial temperature grade; unsuitable for under-hood automotive use	Select when cost sensitivity outweighs automotive qualification and extended temperature needs
74LVC1G07GW,125	3.3V-only supply (1.65–5.5V), lower 32mA sink, no Schmitt input, AEC-Q100 Grade 1 qualified	Better suited for mixed-voltage 3.3V systems; lacks noise immunity for slow-rising sensor signals	Prefer for 3.3V-centric designs where higher sink current and wider V_CC range are unnecessary

Compared with SN74AHCT1G07DBVR and 74LVC1G07GW,125, the 74AHCT1G07QSE-7 uniquely combines AEC-Q100 Grade 1 qualification, Schmitt-trigger input, and guaranteed 8mA sink across −40°C to +125°C - making it the only choice for robust 5V automotive signal conditioning where noise immunity and thermal margin are critical.

Availability

74AHCT1G07QSE-7 is available at Aetrix Electronics and suitable for automotive body control units, industrial PLC input modules, and I²C bus level-shifting applications requiring stable component supply, full AEC-Q100 traceability, and long-term production continuity.

Supply support for 74AHCT1G07QSE-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 solutions for automotive, industrial, and computing markets with ISO/TS 16949 and IATF 16949 certifications.

The 74AHCT1G07QSE-7 belongs to Diodes' AHCT logic family - engineered specifically for automotive-grade 5V systems requiring robust noise immunity, wide temperature operation, and AEC-Q100 compliance without sacrificing speed or power efficiency.

FAQ

Is an external pull-up resistor required for the 74AHCT1G07QSE-7 output?

Yes - the open-drain output cannot source current, so a pull-up resistor to V_CC or another logic rail is mandatory to establish a valid HIGH logic level. Typical values range from 1kΩ to 10kΩ depending on bus capacitance and rise-time requirements. Without it, the output remains undefined (floating) in the HIGH state.

Can the 74AHCT1G07QSE-7 operate at 3.3V supply?

No - the device is specified only for 4.5V to 5.5V operation per DS41461 Rev. 1-2. At 3.3V, input thresholds (V_IH ≥ 2.0V) may still be met, but output sink performance, propagation delay, and AEC-Q100 qualification are not guaranteed. Use 74LVC1G07GW,125 instead for 3.3V systems.

What is the maximum capacitive load the 74AHCT1G07QSE-7 can drive?

The datasheet specifies switching characteristics up to 50pF load (t_PZL/t_PLZ tested at CL = 15pF and 50pF). While functional operation may extend beyond 50pF, propagation delay increases linearly and VOL rises above spec limits above ~60pF at 8mA sink. For >50pF, verify timing margins in final layout with IBIS simulation.

Does the NC pin (Pin 5) require any PCB routing or grounding?

No - Pin 5 is internally unconnected. It must remain electrically floating: no trace, no solder mask opening, and no connection to ground or any net. Routing to GND or V_CC violates the SOT353 pinout and risks internal damage or parametric shift due to unintended coupling.

74AHCT1G07QSE-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:: Buffer, Non-Inverting

Number of Elements:: 1

Number of Bits per Element:: 1

Input Type:: -

Output Type:: Open Drain

Current - Output High, Low:: -, 8mA

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-353

74AHCT1G07QSE-7 FAQ

1.How can I place an order for 74AHCT1G07QSE-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74AHCT1G07QSE-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 74AHCT1G07QSE-7 reliable?

The price and inventory of 74AHCT1G07QSE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT1G07QSE-7 is usually 5 days.

3.What payment methods are accepted for 74AHCT1G07QSE-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT1G07QSE-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74AHCT1G07QSE-7?

74AHCT1G07QSE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74AHCT1G07QSE-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 74AHCT1G07QSE-7?

For technical support, including 74AHCT1G07QSE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT1G07QSE-7 requirements.

6.How does Aetrix verify that 74AHCT1G07QSE-7 is sourced from the original manufacturer or authorized distributors?

All 74AHCT1G07QSE-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 74AHCT1G07QSE-7 meets industry standards.

7.What is the process for return or replacement of 74AHCT1G07QSE-7?

All 74AHCT1G07QSE-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT1G07QSE-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 74AHCT1G07QSE-7 part is unused and in its original packaging.

Return procedure for 74AHCT1G07QSE-7:

1.Submit a request within 90 days.

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

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