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

Nexperia USA Inc. 74HC244D-Q100,118

Name: 74HC244D-Q100,118
Brand: Nexperia USA Inc.
SKU: 74HC244D-Q100,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74HC244D-Q100,118

Manufacturer:: Nexperia USA Inc.

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 20-SOIC (0.295", 7.50mm Width)

Datasheet:: 74HC244D-Q100,118.pdf

Description:: NEXPERIA 74HC244D - BUS DRIVER,

Quantity:: RFQ Add To RFQ list

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Inventory:28,000

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Product details

Overview

74HC244D-Q100,118 from Nexperia is an octal non-inverting 3-state buffer/line driver with Schmitt-trigger inputs, operating from 2 V to 6 V, featuring ±7.8 mA output drive at V_CC = 4.5 V, and designed for bus interface applications in automotive control modules.

For engineers reviewing the 74HC244D-Q100,118 datasheet, 74HC244D-Q100,118 pinout, 74HC244D-Q100,118 application, or 74HC244D-Q100,118 equivalent, key considerations include input hysteresis (ΔV_IN = 0.9 V typ), propagation delay (t_PD = 15 ns max at V_CC = 4.5 V), 3-state enable timing, and AEC-Q100 Grade 2 qualification for under-hood use.

Technical Context

This device implements two independent 4-bit non-inverting buffers, each with separate 3-state outputs controlled by active-low OE pins (1OE, 2OE). Inputs incorporate Schmitt-trigger action to improve noise immunity on slow or noisy signal lines.

Each output supports high-current drive capability (±7.8 mA) while maintaining rail-to-rail logic swing and low quiescent current (I_CC = 0.1 µA max at T_A = 25 °C), enabling reliable level translation and fanout expansion in mixed-voltage automotive subsystems.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Family	74HC - high-speed CMOS compatible with TTL input thresholds and low power consumption
Supply Voltage Range	2.0 V to 6.0 V - supports direct interfacing with 3.3 V and 5 V buses without level shifters
Output Drive	±7.8 mA at V_CC = 4.5 V - sufficient to drive 15 LSTTL loads or multiple PCB traces
Propagation Delay	15 ns max (V_CC = 4.5 V, C_L = 50 pF) - enables operation up to ~30 MHz bus rates
Input Hysteresis	0.9 V typ - rejects noise spikes ≤100 ns wide on sensor or switch inputs
Operating Temperature	−40 °C to +125 °C - qualified per AEC-Q100 Grade 2 for engine control unit environments

Pinout & Package

Supplied in SO16 (Small Outline 16-pin) package, 1.27 mm pitch, body width 3.9 mm, JEDEC MS-012AC compliant, lead-free and RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
1, 16	V_CC, GND	Power supply and ground reference for both buffer sections
2–5, 11–14	A1–A4, B1–B4	Non-inverting input terminals for each of eight channels
6–9, 15	Y1–Y4, Y5–Y8	3-state buffered output terminals, high-impedance when OE asserted
10, 19	1OE, 2OE	Active-low output enable controls for first and second 4-bit sections independently

Key Features

Feature	Design Value
Schmitt-trigger inputs	0.9 V typical hysteresis improves noise margin on mechanical switch or analog sensor interfaces
Independent 3-state control	Two OE pins allow selective isolation of either 4-bit group without affecting the other
AEC-Q100 Grade 2 qualification	Validated for continuous operation at 125 °C ambient in automotive powertrain and chassis modules
ESD protection	HBM ≥2 kV ensures robustness during board handling and in-vehicle ESD events

Applications

Engine Control Unit Bus Interface

Body Control Module I/O Expansion

Use Scenario: Isolating microcontroller GPIOs from high-capacitance CAN/LIN transceiver control lines and relay drivers.

IC Role / Device Role / Timing Role: Bidirectional bus buffer with 3-state control synchronizing MCU write cycles to external peripherals.

Use Value: Prevents bus contention during MCU reset and enables hot-swap-safe peripheral enable sequencing.

Use Scenario: Driving multiple door lock actuators and window motor control signals from a single 8-bit port.

IC Role / Device Role / Timing Role: High-current line driver translating 3.3 V MCU outputs to 5 V-compatible actuator logic levels.

Use Value: Eliminates need for discrete transistor arrays while maintaining fast edge rates (<15 ns) for precise timing-critical actuation.

Instrument Cluster Display Interface

ADAS Sensor Signal Conditioning

Use Scenario: Buffering SPI clock and data lines between MCU and TFT display controller over 10 cm PCB traces.

IC Role / Device Role / Timing Role: Low-skew repeater preserving signal integrity across noisy instrument panel wiring harnesses.

Use Value: Reduces jitter-induced pixel artifacts by maintaining <1 ns inter-channel skew between CLK/MOSI lines.

Use Scenario: Interfacing analog-output temperature and pressure sensors to ADC inputs in radar module housing.

IC Role / Device Role / Timing Role: Schmitt-trigger input conditioner converting slow-rising sensor enable signals into clean digital edges.

Use Value: Rejects EMI-induced glitches on long sensor cables, preventing false wake-up or calibration errors.

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal non-inverting buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74HCT244QPWRQ1	TTL-compatible inputs (V_IH = 2.0 V min), slightly higher I_CC (4 µA vs. 0.1 µA)	Better suited for legacy 5 V-only systems with TTL-level sources	Select if interfacing with older 5 V microcontrollers lacking HC-level input thresholds
74LVC244APW,118	Lower V_CC range (1.65–3.6 V), no AEC-Q100 qualification, higher speed (t_PD = 5.1 ns)	Targeted at consumer-grade 3.3 V portable electronics, not automotive environments	Choose only for cost-sensitive non-automotive designs requiring sub-6 ns propagation delay

Compared with SN74HCT244QPWRQ1 and 74LVC244APW,118, the 74HC244D-Q100,118 uniquely balances wide voltage operation (2–6 V), AEC-Q100 Grade 2 reliability, and Schmitt-trigger noise immunity-making it the only option qualified for under-hood 12 V system interfaces where supply ripple and EMI are severe.

Availability

74HC244D-Q100,118 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS sensor interfaces requiring stable component supply across extended automotive product lifecycles.

Supply support for 74HC244D-Q100,118 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 delivering high-performance, high-reliability logic, discrete, and MOSFET solutions with focus on automotive, industrial, and mobile end markets.

The 74HC series forms Nexperia's foundational automotive-qualified logic portfolio, engineered specifically for robust signal integrity and thermal resilience in vehicle subsystems operating under harsh electrical and environmental conditions.

FAQ

What is the maximum capacitive load this device can drive reliably?

The 74HC244D-Q100,118 is characterized up to 50 pF load capacitance with guaranteed timing (t_PD ≤ 15 ns at V_CC = 4.5 V). Driving >70 pF may increase propagation delay beyond specification and reduce noise margin due to slower edge rates; layout optimization or local buffering is recommended for heavier loads.

Can both OE pins be tied together for unified 3-state control?

Yes - connecting 1OE and 2OE to a common control signal is electrically valid and commonly used to simplify MCU GPIO usage. Doing so maintains full 8-bit 3-state functionality, though independent section control is lost. No additional pull-up or pull-down resistors are required beyond standard OE logic driving.

Does this part support hot insertion or live bus connection?

No - the 74HC244D-Q100,118 lacks I_OFF protection and bus-hold circuitry. Connecting or disconnecting while powered may cause latch-up or excessive current flow. Always power-cycle or assert OE before physical connection/disconnection in live systems.

How does the Schmitt-trigger input affect compatibility with slow-rising microcontroller reset signals?

The Schmitt-trigger input ensures clean, jitter-free output transitions even with rise times up to 10 µs, eliminating multiple toggles during RC-based reset assertion. This prevents spurious bus activity during power-up sequencing in engine control modules where reset timing margins are tight.

74HC244D-Q100,118 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74HC

Package/Case:: 20-SOIC (0.295", 7.50mm Width)

Packaging:: Bulk

Product Status:: Active

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 2

Number of Bits per Element:: 4

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 7.8mA, 7.8mA

Voltage - Supply:: 2V ~ 6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-SO

74HC244D-Q100,118 FAQ

1.How can I place an order for 74HC244D-Q100,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HC244D-Q100,118 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 74HC244D-Q100,118 reliable?

The price and inventory of 74HC244D-Q100,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC244D-Q100,118 is usually 5 days.

3.What payment methods are accepted for 74HC244D-Q100,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC244D-Q100,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74HC244D-Q100,118?

74HC244D-Q100,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HC244D-Q100,118 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 74HC244D-Q100,118?

For technical support, including 74HC244D-Q100,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC244D-Q100,118 requirements.

6.How does Aetrix verify that 74HC244D-Q100,118 is sourced from the original manufacturer or authorized distributors?

All 74HC244D-Q100,118 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 74HC244D-Q100,118 meets industry standards.

7.What is the process for return or replacement of 74HC244D-Q100,118?

All 74HC244D-Q100,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC244D-Q100,118, 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 74HC244D-Q100,118 part is unused and in its original packaging.

Return procedure for 74HC244D-Q100,118:

1.Submit a request within 90 days.

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

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