STMicroelectronics HCF40106M013TR

Overview

HCF40106M013TR from STMicroelectronics is a hex Schmitt trigger IC in SO-14 package, providing six independent inverting Schmitt triggers with hysteresis of 0.9 V (at 5 V), 2.3 V (at 10 V), and 3.5 V (at 15 V), enabling robust noise immunity (>50%) and stable waveform shaping in automotive sensor signal conditioning and industrial timing circuits.

For engineers reviewing the HCF40106M013TR datasheet, HCF40106M013TR pinout, HCF40106M013TR application, or HCF40106M013TR equivalent, key selection considerations include supply voltage range (3–20 V), input leakage current (≤100 nA at 18 V), propagation delay (60–280 ns), output drive capability (±0.36–3.2 mA), and extended temperature operation (−55 °C to +125 °C).

Technical Context

The HCF40106M013TR implements six independent CMOS Schmitt-trigger inverters, each switching at distinct positive (VP) and negative (VN) thresholds to generate hysteresis-e.g., VP = 2.9 V / VN = 1.9 V at VDD = 5 V. Its input protection network includes COS/MOS clamping diodes, and it operates without external components for threshold setting.

It supports rail-to-rail input (0 to VDD) and symmetrical output characteristics (VOH ≥ 4.95 V, VOL ≤ 0.05 V at VDD = 5 V), with quiescent current fully tested up to 20 V and dynamic performance specified at CL = 50 pF, RL = 200 kΩ, and tr/tf = 20 ns.

Key Specifications

Pinout & Package

SO-14 surface-mount package (8.55–8.75 mm × 5.8–6.2 mm, 1.27 mm pitch), RoHS-compliant and ECOPACK® certified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CD40106BE and SN74LVC14APWR, the HCF40106M013TR uniquely combines wide supply range (3–20 V), guaranteed −55 °C operation, and high hysteresis (up to 3.5 V) - making it the only choice for automotive sensor front-ends and industrial RC oscillators requiring robust analog-digital interface behavior.

Availability

HCF40106M013TR is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial programmable logic controllers, and computer power management systems requiring stable component supply across extended temperature and voltage ranges.

Supply support for HCF40106M013TR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing silicon solutions for automotive, industrial, and consumer markets since 1987.

The HCF40106 belongs to ST's legacy high-voltage CMOS logic family, engineered specifically for robust analog-digital interface functions-including waveform generation, signal conditioning, and noise-immune switching-in harsh-environment applications.

FAQ

Can HCF40106M013TR operate reliably at 18 V supply?

Yes. The device is fully characterized and 100% tested for quiescent current up to 20 V, with absolute maximum VDD rated at +22 V. At 18 V, input leakage remains ≤±100 nA, and hysteresis reaches ~5 V - confirmed in Table 6 of the official datasheet (DocID002017 Rev 4, p.7).

What is the minimum recommended load capacitance for stable oscillator operation?

The datasheet specifies dynamic testing at CL = 50 pF, and Figure 7 confirms stable astable operation with C ≥ 100 pF. For reliable startup and duty-cycle control, ST recommends 100 pF–1 µF - values below 100 pF may cause erratic oscillation or increased jitter due to insufficient gate charging.

Does HCF40106M013TR support mixed-voltage interfacing (e.g., 5 V input to 15 V output)?

No. All inputs must remain within 0 to VDD; applying 5 V to an input while VDD = 15 V is valid and safe, but the output swings rail-to-rail (0 to 15 V). Level translation requires external resistive dividers or dedicated translators - the IC itself does not provide voltage-level isolation.

Is the SO-14 package lead-free and RoHS-compliant?

Yes. Per Section 5 of the datasheet, the HCF40106M013TR uses an ECOPACK®-compliant SO-14 package, meeting RoHS Directive 2011/65/EU and REACH SVHC requirements. Lead finish is matte tin, and halogen content is below regulated thresholds.