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

Nexperia USA Inc. 74HCT365DB,118

Name: 74HCT365DB,118
Brand: Nexperia USA Inc.
SKU: 74HCT365DB,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74HCT365DB,118

Manufacturer:: Nexperia USA Inc.

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 16-SSOP (0.209", 5.30mm Width)

Datasheet:: 74HCT365DB,118.pdf

Description:: IC BUF NON-INVERT 5.5V 16SSOP

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Product details

Overview

74HCT365DB,118 from Nexperia is a hex non-inverting 3-state buffer/line driver with TTL-compatible inputs, operating from 4.5 V to 5.5 V, delivering ±6 mA output drive at V_CC = 4.5 V, and specified for -40 °C to +125 °C industrial temperature range. It enables bidirectional bus isolation in microcontroller I/O expansion and address/data latching circuits.

For engineers reviewing the 74HCT365DB,118 datasheet, 74HCT365DB,118 pinout, 74HCT365DB,118 application, or 74HCT365DB,118 equivalent, this device is selected for high-noise-immunity digital interfacing where TTL-level input compatibility, low quiescent current (≤160 μA), and fast enable/disable timing (t_en/t_dis ≤ 53 ns @ 4.5 V) are critical in space-constrained SO16 layouts.

Technical Context

This device implements six independent non-inverting buffers, each with dedicated active-low 3-state control via two shared OE inputs (OE1, OE2), allowing grouped output disable across three pairs of channels. Its TTL-level input thresholds (V_IL ≤ 0.8 V, V_IH ≥ 2.0 V @ V_CC = 4.5–5.5 V) ensure direct compatibility with legacy 5 V logic families without level-shifting.

Input clamp diodes permit safe interface to voltages exceeding V_CC when used with external current-limiting resistors. The SO16 package (SOT109-1) supports surface-mount assembly with 1.27 mm lead pitch and 3.9 mm body width, meeting JEDEC MS-012 mechanical standards.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	4.5 V to 5.5 V - Ensures stable operation across standard 5 V rail tolerances.
Input Logic Type	TTL-compatible - Directly interfaces with 74LS, 74F, and other 5 V TTL outputs without translation.
Output Drive	±6.0 mA @ V_CC = 4.5 V - Sufficient to drive 10 LS-TTL loads or moderate PCB traces.
Propagation Delay	≤38 ns @ V_CC = 4.5 V, T_A = -40 °C to +125 °C - Supports reliable timing in 10–20 MHz digital control paths.
3-State Enable/Disable	t_en/t_dis ≤ 53 ns @ V_CC = 4.5 V - Enables fast bus arbitration and dynamic signal routing.
Quiescent Supply Current	≤160 μA @ V_CC = 5.5 V, T_A = -40 °C to +125 °C - Minimizes standby power in always-on industrial controllers.
Operating Temperature	-40 °C to +125 °C - Qualified for under-hood automotive ECUs and industrial motor drives.

Pinout & Package

74HCT365DB,118 is housed in a plastic small outline package (SO16), SOT109-1, with 16 leads, 3.9 mm body width, and 1.27 mm lead pitch. Pin 1 is marked by a notch or beveled corner.

Pin/Terminal	Circuit Role	Design Meaning
1 (OE1)	Output enable input 1	Active-low control for buffers 1Y, 2Y, and 3Y - ties three outputs to high-impedance simultaneously.
2 (1A)	Data input 1	Non-inverting input for first buffer channel - directly passes logic state to 1Y.
3 (1Y)	Data output 1	Buffered, 3-state output corresponding to 1A - sinks or sources up to 6 mA.
4 (2A)	Data input 2	Non-inverting input for second buffer channel - isolated electrically from other inputs.
5 (2Y)	Data output 2	Buffered, 3-state output corresponding to 2A - shares no internal nodes with other outputs.
6 (3A)	Data input 3	Non-inverting input for third buffer channel - supports independent signal conditioning.
7 (3Y)	Data output 3	Buffered, 3-state output corresponding to 3A - disabled when OE1 is HIGH.
8 (GND)	Ground reference	0 V return path for all internal circuitry and I/O - must be low-impedance for noise immunity.
9 (4Y)	Data output 4	Buffered, 3-state output corresponding to 4A - disabled when OE2 is HIGH.
10 (4A)	Data input 4	Non-inverting input for fourth buffer channel - part of second OE group.
11 (5Y)	Data output 5	Buffered, 3-state output corresponding to 5A - shares OE2 control with 4Y and 6Y.
12 (5A)	Data input 5	Non-inverting input for fifth buffer channel - electrically isolated per channel.
13 (6Y)	Data output 6	Buffered, 3-state output corresponding to 6A - completes hex buffer set with matched specs.
14 (6A)	Data input 6	Non-inverting input for sixth buffer channel - supports full parallel data path buffering.
15 (OE2)	Output enable input 2	Active-low control for buffers 4Y, 5Y, and 6Y - enables independent bus segment control.
16 (V_CC)	Supply voltage	+4.5 V to +5.5 V power rail - requires local 100 nF ceramic decoupling near pin 16.

Key Features

Feature	Design Value
Wide supply range	4.5 V to 5.5 V - accommodates aging 5 V rails and brown-out conditions without functional loss.
TTL-compatible inputs	V_IL ≤ 0.8 V, V_IH ≥ 2.0 V - eliminates need for external level shifters when interfacing with legacy 5 V logic.
High noise immunity	≥400 mV noise margin at V_CC = 5 V - ensures robust operation in electrically noisy motor drive or power supply environments.
Input clamp diodes	Integrated ESD protection diodes - allows safe connection to signals up to V_CC + 0.5 V using series resistors.
Latch-up immunity	Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transient overvoltage events.
Extended temperature range	-40 °C to +125 °C - qualified for use in engine control units, industrial PLCs, and outdoor telecom equipment.

Applications

Microcontroller I/O Expansion

Address/Data Bus Isolation

Use Scenario: Expanding GPIO count on an ARM Cortex-M4 MCU with limited native pins for sensor array control.

IC Role / Device Role / Timing Role: Non-inverting buffer providing 3-state isolation between MCU port and peripheral address lines.

Use Value: Enables dynamic multiplexing of 6 parallel signals while preventing bus contention during reconfiguration.

Use Scenario: Separating CPU address bus from memory-mapped peripherals in a real-time motion controller.

IC Role / Device Role / Timing Role: Hex buffer acting as direction-controlled bus driver with OE-synchronized enable timing.

Use Value: Reduces signal skew across 6-bit address path to <15 ns, ensuring setup/hold compliance with 20 MHz SRAM access.

Industrial Digital Input Conditioning

Legacy System Interface Bridge

Use Scenario: Converting 24 V DC field sensor outputs to clean 5 V logic levels for PLC input modules.

IC Role / Device Role / Timing Role: Input buffer with clamped TTL inputs accepting current-limited 24 V signals.

Use Value: Eliminates need for discrete resistor-diode networks, reducing BOM count and PCB area by 40%.

Use Scenario: Interfacing a modern FPGA-based controller to legacy 74LS-based backplane logic.

IC Role / Device Role / Timing Role: Level-translating buffer matching LS fanout and timing characteristics.

Use Value: Maintains t_pd < 40 ns and VIH/VIL thresholds compatible with 74LS, avoiding redesign of timing-critical paths.

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex 3-state buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
74HCT365D,118	Same die, identical SO16 (SOT109-1) package and electrical specs - differs only in tape-and-reel packaging variant.	No functional difference; both rated for -40 °C to +125 °C and support same 4.5–5.5 V operation.	Select 74HCT365D,118 for automated SMT placement requiring different reel configuration.
SN74HCT365N	Dual-in-line package (PDIP-16); higher thermal resistance; max ambient temp limited to +70 °C.	Suitable only for lab prototypes or low-power commercial boards - not for industrial or automotive thermal environments.	Choose only for breadboard evaluation or legacy through-hole designs where SO16 reflow is unavailable.

Compared with 74HCT365DB,118, the D,118 variant offers identical performance in a functionally interchangeable reel format, while SN74HCT365N trades thermal robustness and surface-mount compatibility for prototyping convenience - making the DB,118 optimal for volume production in harsh environments.

Availability

74HCT365DB,118 is available at Aetrix Electronics and suitable for industrial motor control, automotive ECU signal conditioning, and embedded microcontroller I/O expansion requiring stable component supply across extended temperature ranges.

Supply support for 74HCT365DB,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 specializing in high-performance, energy-efficient logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74HCT365 belongs to Nexperia's industry-standard 74HCT logic family, designed specifically for TTL-to-CMOS interfacing in noise-prone, thermally demanding applications where reliability and pin compatibility are essential.

FAQ

What is the maximum output current per channel for 74HCT365DB,118?

The device delivers ±6.0 mA per output at V_CC = 4.5 V, verified across -40 °C to +125 °C. This rating applies to both sourcing (VOH) and sinking (VOL) conditions with guaranteed VOL ≤ 0.4 V and VOH ≥ 3.7 V under load, enabling direct drive of LS-TTL inputs or moderate capacitive loads up to 50 pF.

Can 74HCT365DB,118 operate with a 3.3 V supply?

No - the 74HCT365DB,118 is specified only for 4.5 V to 5.5 V operation. Its TTL-compatible input thresholds require minimum 2.0 V for VIH and maximum 0.8 V for VIL at 5 V, which are not met at 3.3 V. For 3.3 V systems, consider the 74LVC365A or 74ALVC365, which are designed for 3.3 V logic compatibility.

How are the two output enable inputs (OE1 and OE2) configured internally?

OE1 controls outputs 1Y, 2Y, and 3Y; OE2 controls outputs 4Y, 5Y, and 6Y - forming two independent 3-channel groups. Both are active-low, and driving either to HIGH places its associated outputs in high-impedance state regardless of input states. No internal OR/AND logic connects OE1 and OE2.

Is 74HCT365DB,118 automotive-qualified?

No - although rated for -40 °C to +125 °C, this part is not AEC-Q100 qualified and lacks automotive-specific testing (e.g., HTOL, ESD HBM > 2 kV, board-level vibration). It is intended for industrial-grade applications; for automotive use, specify Nexperia's automotive-qualified equivalents such as 74HCT365BQ,115 (AEC-Q100 Grade 1).

74HCT365DB,118 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74HCT

Package/Case:: 16-SSOP (0.209", 5.30mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 1

Number of Bits per Element:: 6

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 6mA, 6mA

Voltage - Supply:: 4.5V ~ 5.5V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SSOP

74HCT365DB,118 FAQ

1.How can I place an order for 74HCT365DB,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HCT365DB,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 74HCT365DB,118 reliable?

The price and inventory of 74HCT365DB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT365DB,118 is usually 5 days.

3.What payment methods are accepted for 74HCT365DB,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT365DB,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74HCT365DB,118?

74HCT365DB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HCT365DB,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 74HCT365DB,118?

For technical support, including 74HCT365DB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT365DB,118 requirements.

6.How does Aetrix verify that 74HCT365DB,118 is sourced from the original manufacturer or authorized distributors?

All 74HCT365DB,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 74HCT365DB,118 meets industry standards.

7.What is the process for return or replacement of 74HCT365DB,118?

All 74HCT365DB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT365DB,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 74HCT365DB,118 part is unused and in its original packaging.

Return procedure for 74HCT365DB,118:

1.Submit a request within 90 days.

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

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