Nexperia USA Inc. 74HC365DB,118

Overview

74HC365DB,118 from Nexperia is a hex non-inverting 3-state buffer/line driver in SO16 (SOT109-1) package, operating from 2.0 V to 6.0 V supply, delivering ±7.8 mA output drive at VCC = 6.0 V, with propagation delay as low as 9 ns (typ.) and 25 ns (max @ -40 °C to +125 °C), used for bus interfacing and signal isolation in industrial control backplanes.

For engineers reviewing the 74HC365DB,118 datasheet, 74HC365DB,118 pinout, 74HC365DB,118 application, or 74HC365DB,118 equivalent, this device supports high-noise-immunity digital buffering with dual active-low output enables (OE1, OE2), CMOS-level inputs, and guaranteed operation across -40 °C to +125 °C - critical for legacy system upgrades and mixed-voltage board-level signal conditioning.

Technical Context

The 74HC365DB,118 implements six independent non-inverting buffers, each with separate input and output terminals, controlled by two shared 3-state enable inputs (OE1 for channels 1–3, OE2 for channels 4–6). Its CMOS architecture ensures rail-to-rail output swing and sub-100 μA quiescent ICC at 6.0 V.

Input clamp diodes allow safe interfacing to voltages exceeding VCC when current-limiting resistors are used; ESD protection meets HBM >2000 V and CDM >1000 V. The device complies with JEDEC JESD7A (2.0–6.0 V) and operates reliably under fast input transitions (≥83 ns/V at VCC = 6.0 V).

Key Specifications

Pinout & Package

74HC365DB,118 uses the SO16 plastic small outline package (SOT109-1), 16-pin, 3.9 mm body width, with standard 1.27 mm lead pitch and gull-wing leads for reflow-compatible PCB assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HC365DB,118, the 74HCT365DB,118 offers guaranteed TTL input compatibility at 5 V but sacrifices universal 2–6 V flexibility; SN74LVC365APWR delivers higher drive and lower power at 3.3 V but cannot operate above 3.6 V - making the HC variant the only choice for true dual-supply interoperability.

Availability

74HC365DB,118 is available at Aetrix Electronics and suitable for industrial control backplanes, motor drive signal conditioning, legacy system bus isolation, and test equipment digital pattern generation requiring stable component supply across extended temperature ranges.

Supply support for 74HC365DB,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-volume, high-reliability logic, analog, and MOSFET solutions for industrial, automotive, and consumer markets.

The 74HC365DB,118 belongs to Nexperia's industry-standard 74HC logic family, designed specifically for robust, low-power digital interfacing in harsh environments with wide supply and temperature margins.

FAQ

What is the maximum clock frequency supported by the 74HC365DB,118?

The 74HC365DB,118 does not have a defined clock frequency since it is an asynchronous buffer. Its usable data rate is determined by propagation delay (25 ns max) and transition time (15 ns max), supporting reliable operation up to approximately 20 MHz in 50 pF-loaded bus applications with adequate setup/hold margin.

Can 74HC365DB,118 safely interface with 12 V signals?

Yes - its inputs feature integrated clamp diodes. When a current-limiting resistor (e.g., 10 kΩ) is placed in series with a 12 V source, the diode conducts excess voltage to VCC or GND, limiting input current to ≤20 mA per the absolute maximum rating, enabling direct interface without external protection.

Is the 74HC365DB,118 pin-compatible with 74HCT365DB,118?

Yes - both share identical SO16 (SOT109-1) pinout, functional diagram, and 3-state control architecture. The only difference is input threshold levels: HC uses CMOS thresholds (VIH ≈ 0.7×VCC), while HCT uses fixed TTL thresholds (VIH = 2.0 V min), allowing direct substitution where input logic family matches.

Does 74HC365DB,118 require external pull-up or pull-down resistors on OE pins?

No - OE1 and OE2 are active-low CMOS inputs with negligible leakage (<±1.0 μA). In static applications, they may be tied directly to VCC (to disable outputs) or GND (to enable outputs). For dynamic control, driving from MCU GPIOs is sufficient; no pull resistors are needed unless open-drain control is used.