onsemi NL17SG14DFT2G

Overview

NL17SG14DFT2G from onsemi is a single-channel Schmitt-trigger inverter IC designed for ultra-low-voltage digital signal conditioning in space-constrained applications. It operates across 0.9 V to 3.6 V supply, delivers 2.4 ns typical propagation delay at 3.0 V/15 pF, supports input/output overvoltage tolerance up to 3.6 V, and features IOFF partial power-down protection. It is used in automotive sensor interface circuits requiring noise-immune signal inversion.

For engineers reviewing the NL17SG14DFT2G datasheet, pinout, applications, or equivalent options, this page provides verified package mapping (SC-88A), confirmed Schmitt-trigger hysteresis values (0.49 V min at 3.0 V), AEC-Q100 qualification status, and real-world timing behavior under varying load and temperature conditions.

Technical Context

The NL17SG14DFT2G implements a single CMOS inverter with hysteresis via internal positive feedback, enabling robust noise rejection on slow or noisy input signals. Its input threshold voltages are rail-proportional: VT+ = 2.24 V and VT− = 1.13 V at VCC = 3.0 V, yielding 1.11 V hysteresis - critical for debouncing mechanical switches or cleaning analog-sourced logic transitions.

It supports true tri-state-compatible operation only when externally enabled (not inherent), but includes IOFF circuitry that isolates inputs/outputs during power-down (VCC = 0 V), limiting leakage to ≤10 µA. The device is rated for −55 °C to +125 °C operation and meets AEC-Q100 Grade 1 requirements per its −Q suffix designation.

Key Specifications

Pinout & Package

Package: SC-88A (SOT-353), 5-pin, 1.25 mm × 2.1 mm × 0.95 mm, moisture sensitivity level 1, Pb-free and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G14DBVR and MC74VHC1G14DTT1G, the NL17SG14DFT2G uniquely supports 0.9 V operation, includes IOFF for zero-leakage power-down, and carries full AEC-Q100 Grade 1 qualification - making it the only choice for automotive body electronics running from single-cell LiFePO₄ or energy-harvesting sources.

Availability

NL17SG14DFT2G is available at Aetrix Electronics and suitable for automotive body control units, industrial human-machine interface panels, and medical wearable signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for NL17SG14DFT2G 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, delivering silicon solutions for automotive, industrial, cloud, and IoT applications.

The NL17SG14DFT2G belongs to onsemi's TinyLogic® family of ultra-small logic ICs, engineered specifically for space- and power-constrained embedded systems where traditional logic families cannot fit or meet voltage requirements.

FAQ

What is the minimum supply voltage required for reliable operation of the NL17SG14DFT2G?

The NL17SG14DFT2G is fully specified down to 0.9 V VCC, with functional operation confirmed across −55 °C to +125 °C at this voltage. At 0.9 V, input thresholds are VT+ = 0.7 V and VT− = 0.23 V, providing 0.47 V hysteresis. Propagation delay increases to 38 ns (typical) at CL = 10 pF, but logic functionality remains intact - making NL17SG14DFT2G suitable for single-cell lithium or energy-harvesting applications.

Does the NL17SG14DFT2G support true tri-state output functionality?

No, the NL17SG14DFT2G does not feature a tri-state output. It is a standard push-pull inverter with active-high and active-low output states only. However, its IOFF circuitry provides partial power-down protection: when VCC = 0 V, input and output terminals are internally isolated, limiting leakage to ≤10 µA - a key distinction from tri-state but sufficient for many low-power sequencing use cases involving NL17SG14DFT2G.

Is the NL17SG14DFT2G pin-compatible with other TinyLogic inverters in SC-88A packages?

Yes, the NL17SG14DFT2G shares identical SC-88A pinout (Pin 1 = NC, Pin 2 = A, Pin 3 = GND, Pin 4 = VCC, Pin 5 = Y) with other single-gate TinyLogic devices such as NL17SZ04 and NL17SV04. This allows drop-in replacement in layouts where logic function change (e.g., inverter vs. buffer) is acceptable - though electrical parameters (thresholds, delay, drive) differ and must be re-validated for each NL17SG14DFT2G application.

What is the maximum capacitive load the NL17SG14DFT2G can drive while maintaining specified timing?

The NL17SG14DFT2G is characterized up to CL = 30 pF in its datasheet, with tPLH/tPHL = 2.6 ns (typ) at VCC = 3.0 V. Driving loads >30 pF increases delay nonlinearly and may cause undershoot/overshoot beyond ±0.3 V. For reliable 2.4 ns performance, keep total load (including trace capacitance and probe effects) ≤15 pF. If higher capacitance is unavoidable, derate timing margins using the CL = 30 pF data point for NL17SG14DFT2G worst-case analysis.

How is AEC-Q100 qualification reflected in the NL17SG14DFT2G part number?

The "−Q" suffix in NL17SG14DFT2G−Q* explicitly denotes AEC-Q100 qualification and PPAP capability. This variant undergoes additional stress testing (temperature cycling, HTOL, ESD) per Grade 1 requirements (−40 °C to +125 °C ambient), uses controlled wafer lots and traceable materials, and ships with full PPAP documentation - distinguishing it from commercial-grade NL17SG14DFT2G without the −Q suffix, which is not certified for automotive use.