Nexperia USA Inc. HEF4093BT,653

Overview

HEF4093BT,653 from Nexperia is a quad 2-input NAND Schmitt trigger IC in SO14 package, operating from 3.0 V to 15.0 V supply, featuring hysteresis thresholds (VT+ = 4.7 V / VT− = 4.0 V at 15 V), 30 ns typical propagation delay at 15 V, and −40 °C to +125 °C industrial temperature range. It performs signal conditioning and noise-immune logic inversion in timing and waveform generation circuits.

For engineers reviewing the HEF4093BT,653 datasheet, HEF4093BT,653 pinout, HEF4093BT,653 application, or HEF4093BT,653 equivalent, this page delivers verified pin functions, Schmitt-trigger transfer characteristics, dynamic timing behavior under load, and validated alternatives for multivibrator and pulse-shaping designs.

Technical Context

The HEF4093BT,653 implements four independent CMOS NAND gates with Schmitt-trigger inputs, each providing hysteresis (VH = 0.7–1.3 V) to reject analog noise on slow-rising/falling signals. Input clamp diodes enable safe interfacing to voltages exceeding VDD when used with current-limiting resistors.

Its static operation supports zero-static-power latching behavior, while dynamic performance is characterized at CL = 50 pF with propagation delays scaling linearly with load capacitance per extrapolation formulas (e.g., tPHL = 22 ns + 0.16 ns/pF × CL at 15 V). Output drive capability reaches ±4.2 mA at 15 V with VOL ≤ 0.05 V and VOH ≥ 14.95 V.

Key Specifications

Pinout & Package

HEF4093BT,653 is housed in a plastic small outline package (SO14), SOT108-1, with 14 leads, 3.9 mm body width, and standard 1.27 mm lead pitch. Pin 1 is marked by a notch or dot; pin numbering follows counterclockwise convention from top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CD4093BE and 74HC14D, the HEF4093BT,653 uniquely balances wide-voltage operation (3–15 V), robust hysteresis (≥0.7 V), and moderate speed (30 ns), making it optimal for industrial multivibrators and mixed-supply waveform shaping where NAND logic and noise immunity are mandatory.

Availability

HEF4093BT,653 is available at Aetrix Electronics and suitable for waveform shapers, astable/monostable multivibrators, and pulse edge detectors requiring stable component supply across automotive under-hood, industrial PLC, and test equipment programs.

Supply support for HEF4093BT,653 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 logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and manufacturability in high-volume applications.

The HEF4093BT,653 belongs to Nexperia's legacy 4000B-series CMOS logic family, engineered specifically for noise-immune timing, signal conditioning, and oscillator circuits in industrial and automotive auxiliary systems.

FAQ

What is the minimum recommended supply decoupling for HEF4093BT,653?

A 100 nF ceramic capacitor placed between VDD (pin 14) and VSS (pin 7), located within 5 mm of the IC, is mandatory to suppress supply rail transients during output switching. For systems with multiple gates switching simultaneously, add a 1 μF bulk capacitor nearby to maintain stable VDD under dynamic load.

Can inputs be driven above VDD without damage?

Yes - internal clamp diodes allow input voltages up to VDD + 0.5 V safely, provided series current-limiting resistors restrict IIK to ≤ ±10 mA. This enables direct interface with 12 V sensors into a 5 V-powered HEF4093BT,653 when R ≥ 700 Ω is used.

How does hysteresis vary with supply voltage?

VT+ and VT− scale approximately linearly with VDD: at 5 V, VT+ = 1.9–3.5 V and VT− = 1.5–3.1 V; at 15 V, VT+ = 4.7–11 V and VT− = 4–10.3 V. Hysteresis width (VH) remains relatively constant at 0.4–1.3 V across the full 3–15 V range.

Is HEF4093BT,653 suitable for driving LEDs directly?

No - its IOL/IOH ratings (±4.2 mA at 15 V) are insufficient for typical indicator LEDs (requiring 5–20 mA). It can drive high-efficiency LEDs (<2 mA) or serve as a logic-stage driver for a discrete transistor or buffer IC, but direct LED drive risks output voltage droop and timing degradation.