Nexperia USA Inc. 74HC9115D-Q100J

Overview

74HC9115D-Q100 from Nexperia is a 9-bit automotive-qualified Schmitt trigger buffer IC with open-drain outputs, 2.0 V to 6.0 V supply range, -40 °C to +125 °C operation, and input clamp diodes enabling overvoltage-tolerant interfacing-used in automotive body control modules for noise-immune signal conditioning of slow-switching sensor inputs.

For engineers reviewing the 74HC9115D-Q100 datasheet, 74HC9115D-Q100 pinout, 74HC9115D-Q100 application, or 74HC9115D-Q100 equivalent, key selection criteria include Schmitt trigger hysteresis (0.5–1.1 V), open-drain output drive capability (±25 mA), AEC-Q100 Grade 1 qualification, and SO20 package compatibility with board-level ESD robustness (HBM >2000 V).

Technical Context

The 74HC9115D-Q100 implements nine independent Schmitt-trigger input stages feeding open-drain NMOS output transistors, each with internal clamp diodes to GND and VCC. Its hysteresis (VH = 0.5–1.1 V) ensures clean digital transitions from slow-rising analog-like signals such as potentiometer wipers or thermistor-based voltage dividers.

It operates across 2.0–6.0 V with propagation delays as low as 10 ns at VCC = 6.0 V (CL = 50 pF), while maintaining latch-up immunity (>100 mA per JESD78 Class II B) and compliance with JEDEC JESD8C (2.7–3.6 V) and JESD7A (2.0–6.0 V) standards.

Key Specifications

Pinout & Package

74HC9115D-Q100 uses the SO20 (SOT163-1) plastic small outline package: 20-pin, 7.5 mm body width, 1.27 mm pitch, gull-wing leads, and standard JEDEC MO-153 footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schmitt-trigger buffer applications.

Compared with SN74LVTH162244DGGR and 74LVC1G17GW,125, the 74HC9115D-Q100 uniquely delivers nine integrated Schmitt inputs + open-drain outputs in a single AEC-Q100-qualified SO20 package, eliminating discrete component count and ensuring deterministic noise rejection across full automotive temperature range.

Availability

74HC9115D-Q100 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor signal conditioning, lighting control systems, and factory automation I/O expansion requiring stable component supply and long-term lifecycle assurance.

Supply support for 74HC9115D-Q100 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 focused on essential efficiency technologies, delivering high-performance, reliable components for automotive, industrial, and consumer markets.

The 74HC9115D-Q100 belongs to Nexperia's automotive-qualified HC logic family, designed specifically for robust signal conditioning in electrically noisy, thermally demanding vehicle subsystems.

FAQ

Can 74HC9115D-Q100 drive an LED directly?

Yes - each open-drain output (Y0–Y8) can sink up to 25 mA continuously. With a properly sized external anode pull-up resistor (e.g., 220 Ω at 5 V), it drives standard indicator LEDs without additional transistors. Ensure total package power dissipation remains ≤500 mW at maximum ambient temperature.

What is the minimum input rise time supported?

The device supports unlimited input rise and fall times per datasheet Section 2. This means it reliably converts arbitrarily slow transitions - including DC-stable inputs or signals changing over seconds - into clean digital outputs due to inherent Schmitt trigger hysteresis and CMOS input structure.

Is external pull-up required on open-drain outputs?

Yes - all Y0–Y8 outputs are open-drain NMOS and require external pull-up resistors to VCC or another logic rail to generate HIGH-level signals. Pull-up value depends on speed and load: 1–10 kΩ typical for general-purpose use; lower values (e.g., 470 Ω) for faster edges with capacitive loads ≤50 pF.

How does the input clamp diode affect interfacing above VCC?

The integrated clamp diodes allow safe connection of inputs to voltages up to 7.0 V (absolute max), provided series current-limiting resistors restrict IVCC clamp current to ≤±20 mA. For example, a 1 kΩ resistor limits current to <1 mA when interfacing a 12 V sensor to a 5 V-powered 74HC9115D-Q100.