NXP Semiconductors HEC4093BT,112

Overview

HEC4093BT,112 from Nexperia is a quad 2-input NAND Schmitt trigger IC operating from 3.0 V to 15.0 V supply, featuring hysteresis thresholds (VT+ = 4.7 V / VT− = 4.0 V at VDD = 15 V), 60 ns max propagation delay at 15 V, and SO14 (SOT108-1) packaging. It transforms slow-rising input signals into clean digital outputs and is used in pulse shaping and multivibrator circuits.

For engineers reviewing the HEC4093BT,112 datasheet, HEC4093BT,112 pinout, HEC4093BT,112 application, or HEC4093BT,112 equivalent, key selection criteria include Schmitt-trigger hysteresis voltage (VH = 0.7–1.3 V), input clamp diodes enabling overvoltage-tolerant interfacing, −40 °C to +125 °C temperature rating, and CMOS low-power static operation with IDD ≤ 30 μA at 15 V.

Technical Context

The HEC4093BT,112 implements four independent NAND gates, each with Schmitt-trigger inputs that provide noise-immune signal conditioning via positive- and negative-going threshold discrimination (VT+ and VT−). Its input clamp diodes allow safe interface to voltages exceeding VDD when used with current-limiting resistors.

It operates fully statically across 3.0–15.0 V, supports JEDEC JESD13-B compliance, and delivers symmetrical output drive (IOL = 4.2 mA / IOH = −4.2 mA at VDD = 15 V, VO = 1.5 V / 13.5 V). Dynamic performance is characterized at CL = 50 pF with tPHL/tPLH extrapolation formulas dependent on VDD and load capacitance.

Key Specifications

Pinout & Package

HEC4093BT,112 is housed in a plastic small outline package (SO14) per SOT108-1 standard: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, with gull-wing leads suitable for surface-mount reflow assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CD4093BE and 74HC132D, the HEC4093BT,112 delivers superior high-temperature stability, tighter propagation delay control at 15 V, integrated input clamping for rugged interfacing, and higher ESD resilience - making it optimal for industrial timing, reset, and signal conditioning where supply flexibility and noise immunity are critical.

Availability

HEC4093BT,112 is available at Aetrix Electronics and suitable for wave shapers, astable/monostable multivibrators, and power-on reset generators requiring stable component supply across extended temperature ranges and mixed-voltage platforms.

Supply support for HEC4093BT,112 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 delivering high-performance, reliable logic, discrete, and MOSFET solutions with emphasis on efficiency, miniaturization, and industrial-grade robustness.

The HEF4093B family - including HEC4093BT,112 - was designed specifically for noise-prone industrial signal conditioning, timing generation, and interface applications demanding wide supply tolerance and Schmitt-trigger precision.

FAQ

What is the maximum supply voltage rating for HEC4093BT,112?

The HEC4093BT,112 has an absolute maximum supply voltage (VDD) of +18 V, with recommended operation from 3.0 V to 15.0 V. Operation beyond 15 V is not specified for parametric performance and may compromise long-term reliability or timing accuracy. The device's input clamp diodes protect against transient overvoltage, but sustained VDD > 15 V is outside its qualified operating envelope.

Does HEC4093BT,112 support operation at −40 °C to +125 °C?

Yes, HEC4093BT,112 is fully specified and tested for operation across −40 °C to +125 °C ambient temperature. This includes validated static and dynamic parameters such as VOH/VOL, propagation delay, and hysteresis voltage across the full range - confirming its suitability for under-hood automotive-adjacent industrial control and power conversion applications.

How does the Schmitt-trigger input hysteresis of HEC4093BT,112 improve noise immunity?

The HEC4093BT,112 provides distinct positive-going (VT+) and negative-going (VT−) input thresholds - e.g., 4.7 V and 4.0 V respectively at VDD = 15 V - creating a 0.7 V hysteresis band. This prevents multiple output transitions when input signals hover near the switching point due to noise or slow slew rates, ensuring single, clean edge generation per input event.

Can HEC4093BT,112 inputs be driven above VDD?

Yes, HEC4093BT,112 includes integrated input clamp diodes that safely conduct currents up to ±10 mA when input voltage exceeds VDD + 0.5 V or falls below −0.5 V. To use this feature, a current-limiting resistor must be placed in series with each overvoltage input - ensuring clamp current remains within specification and preventing damage to the IC.

What is the typical propagation delay of HEC4093BT,112 at 10 V supply?

At VDD = 10 V and CL = 50 pF, the HEC4093BT,112 exhibits typical propagation delays of 40 ns (tPHL and tPLH), with a maximum of 80 ns. These values are derived from the extrapolation formula tPHL = 29 ns + (0.23 ns/pF) × CL, confirmed across temperature and process corners in the official Nexperia datasheet Rev. 11.