STMicroelectronics HCF4098M013TR

Overview

HCF4098M013TR from STMicroelectronics is a dual retriggerable/resettable monostable multivibrator in SO-16 package, operating from 3V to 20V supply, delivering ±2.5% pulse width stability over −55°C to +125°C with external RX/CX timing components, and supporting both leading-edge (+TR) and trailing-edge (−TR) triggering for precision timing control in industrial control logic.

For engineers reviewing the HCF4098M013TR datasheet, HCF4098M013TR pinout, HCF4098M013TR application, or HCF4098M013TR equivalent, key selection factors include independent trigger/reset propagation delays (<500 ns), buffered Q/Q̅ outputs, separate reset inputs per section, wide pulse width range (µs to seconds), and JEDEC JESD13B-compliant B-series CMOS performance.

Technical Context

The HCF4098M013TR implements two independent monostable sections, each with dual-trigger inputs (+TR/−TR), active-low RESET, and complementary buffered Q/Q̅ outputs. Timing is externally set via resistor RX (min 5 kΩ) and capacitor CX (max 100 µF), enabling pulse widths calculable as T = ½·RX·CX for CX > 0.01 µF.

Trigger and reset propagation delays are fully independent of RX and CX values - e.g., tPLH/tPHL ≤ 500 ns at VDD = 5V - ensuring predictable timing behavior across voltage (5V/10V/15V parametric ratings) and temperature (−55°C to +125°C). Input leakage is specified at ±100 nA max at VDD = 18V, TA = 25°C.

Key Specifications

Pinout & Package

SO-16 (Small Outline, 16-pin) package per mechanical drawing PO13H: body width 3.8–4.0 mm, lead pitch 1.27 mm, total length 9.8–10.0 mm, compliant with JEDEC MS-012.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual monostable multivibrator applications.

Compared with CD4098BE and 74HC4538PW, the HCF4098M013TR uniquely combines SO-16 SMT packaging, 3–20V operation, −55°C to +125°C qualification, and retriggerable/resettable dual-monostable functionality - making it the only choice for ruggedized, wide-supply, surface-mount timing in industrial and automotive control.

Availability

HCF4098M013TR is available at Aetrix Electronics and suitable for industrial motor control, automotive power sequencing, and programmable logic timing requiring stable component supply across extended temperature and voltage ranges.

Supply support for HCF4098M013TR 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, designing and manufacturing analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.

The HCF4098B series belongs to ST's legacy B-series CMOS logic family, engineered for robust, wide-supply, high-temperature timing applications where reliability and parametric consistency outweigh raw speed.

FAQ

What is the minimum external resistor value for stable timing with HCF4098M013TR?

The minimum external resistor RX is 5 kΩ, as specified in the datasheet. Using lower values risks excessive current draw, increased power dissipation, and potential timing inaccuracies due to internal node loading. This limit applies across all supply voltages (3–20 V) and temperature ranges (−55°C to +125°C), and is validated by ST's DC characterization data.

Can HCF4098M013TR operate in non-retriggerable mode, and how is it configured?

Yes - non-retriggerable mode is achieved by cross-connecting outputs to trigger inputs: for leading-edge triggering, connect Q1 to −TR1; for trailing-edge triggering, connect Q1 to +TR1. This feedback loop disables retriggering within the pulse period. The same applies independently to the second monostable section, allowing mixed-mode operation across channels.

How does input leakage current affect timing accuracy at elevated temperatures?

Input leakage is specified at ±100 nA max at 25°C and VDD = 18 V, but increases with temperature. At +125°C, leakage may reach ~±1 µA. In high-impedance RC timing networks (e.g., RX = 1 MΩ, CX = 100 pF), this can introduce up to ~10% pulse width error - mitigated by using lower RX values or film capacitors with lower dielectric absorption.

Is the HCF4098M013TR pin-compatible with other SO-16 monostable ICs like the 74HC4538?

No - HCF4098M013TR uses a unique pinout optimized for dual independent monostables with separate +TR/−TR and RESET inputs per section. The 74HC4538 has different pin assignments (e.g., shared reset, no dedicated −TR), and its SO-16 variant (74HC4538PW) places VDD/VSS on pins 16/8 but assigns triggers and outputs to incompatible locations - requiring PCB redesign for substitution.