onsemi NLV14584BDR2G

Overview

NLV14584BDR2G from onsemi is a hex Schmitt trigger IC built with MOS P- and N-channel enhancement-mode devices in a monolithic structure, providing six independent hysteresis-input inverters. It operates from 3.0 V to 18 V, delivers ±10 mA output drive per pin, and features 0.25–1.7 V hysteresis voltage (VH) across supply range - enabling reliable waveform squaring in automotive sensor signal conditioning.

For engineers reviewing the NLV14584BDR2G datasheet, pinout, applications, or equivalent options, key selection criteria include AEC-Q100 qualification, SOIC-14 package compatibility, input threshold symmetry (VT+ and VT−), quiescent current under 1 µA at 5 V, and noise immunity via hysteresis in low-speed analog-to-digital interface circuits.

Technical Context

The NLV14584BDR2G implements six identical Schmitt-trigger inverter stages using CMOS technology, each with independently defined positive-going (VT+) and negative-going (VT−) input thresholds that create fixed hysteresis (VH = VT+ − VT−). Its input protection includes double diode clamping, and unused inputs must be tied to VSS or VDD for stable operation.

It supports dynamic loading up to two low-power TTL loads or one low-power Schottky TTL load across −55 °C to +125 °C ambient, with total supply current scaling linearly with frequency (IT = (1.8 µA/kHz)f + IDD at VDD = 5 V). Propagation delay ranges from 40 ns to 250 ns depending on VDD and temperature.

Key Specifications

Pinout & Package

NLV14584BDR2G uses the SOIC-14 (Case 751A) surface-mount package, measuring 8.55 mm × 3.80 mm × 1.75 mm, with 1.27 mm pitch and Pb-free finish (G suffix).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC14584BDR2G and CD40106BE, NLV14584BDR2G uniquely combines automotive qualification, extended temperature operation, and integrated input protection - making it the only option qualified for under-hood deployment without additional circuitry.

Availability

NLV14584BDR2G is available at Aetrix Electronics and suitable for automotive engine control units, body electronics modules, industrial sensor interfaces, and power supply monitoring systems requiring stable component supply across long product lifecycles.

Supply support for NLV14584BDR2G 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 innovation for automotive, industrial, cloud, and IoT applications.

NLV14584BDR2G belongs to the MC145xxB series of CMOS logic devices designed specifically for high-noise, wide-voltage automotive and industrial signal conditioning - emphasizing reliability, low power, and AEC-Q100 compliance.

FAQ

What is the maximum operating temperature for NLV14584BDR2G?

NLV14584BDR2G is rated for operation from −55 °C to +125 °C ambient temperature and is AEC-Q100 Grade 1 qualified. This specification is confirmed in the Maximum Ratings table of the official onsemi datasheet (Rev. 10, October 2025), where TA = −55 to +125 °C is explicitly listed. The device maintains full electrical performance across this range, including hysteresis stability and output drive strength.

Does NLV14584BDR2G support 3.3 V logic levels?

Yes, NLV14584BDR2G supports 3.3 V operation: its supply voltage range is specified as 3.0 Vdc to 18 Vdc, and electrical characteristics including VT+, VT−, VOL, and VOH are guaranteed down to 3.0 V. At VDD = 3.3 V, typical VT+ is ~1.9 V and VT− is ~1.6 V, providing usable hysteresis for 3.3 V digital interfaces without level translation.

Is NLV14584BDR2G pin-compatible with MC14069UB?

No, NLV14584BDR2G is not pin-compatible with MC14069UB. While the datasheet states NLV14584BDR2G "may be used in place of the MC14069UB hex inverter for enhanced noise immunity", the pin assignments differ: MC14069UB has VDD on pin 14 and VSS on pin 7 (same as NLV14584BDR2G), but its input/output pairing (e.g., IN1/OUT1 on pins 1/2) does not match the NLV14584BDR2G layout (IN1/OUT1 on pins 1/2, IN2/OUT2 on pins 3/4, etc.). Functional replacement requires PCB layout revision.

What is the hysteresis voltage of NLV14584BDR2G at 12 V supply?

At VDD = 12 V, NLV14584BDR2G exhibits a hysteresis voltage (VH) of 1.0 V (min) to 1.5 V (max), derived from VT+ = 3.2–6.9 V and VT− = 2.1–5.3 V per the Electrical Characteristics table. This 1.0–1.5 V window ensures strong rejection of common-mode noise in 12 V automotive subsystems such as lighting controls and fan speed regulation.

Can unused inputs on NLV14584BDR2G be left floating?

No, unused inputs on NLV14584BDR2G must never be left floating. The datasheet explicitly states: "Unused inputs must always be tied to an appropriate logic voltage level (e.g., either VSS or VDD)." Floating inputs cause increased supply current, erratic output behavior, and potential latch-up due to the high-impedance CMOS gate structure. Tying to VSS or VDD ensures predictable static operation and prevents oscillation.