HEF4093BT,653 logic chips

The **Nexperia HEF4093BT,653** is a quad 2-input NAND gate with Schmitt-trigger inputs from the 4000B CMOS series, housed in a compact SOIC-14 package (Tape & Reel). Schmitt-trigger action provides excellent noise immunity and hysteresis, converting slowly changing or noisy input signals into clean, jitter-free outputs. Inputs include clamp diodes, allowing safe interfacing to voltages exceeding VDD via current-limiting resistors.

**Key Specifications:**
– Brand: Nexperia
– Part Number: HEF4093BT,653
– Package: SOIC-14
– Supply voltage: 3 V to 15 V
– Very low quiescent current: 1 µA (typ.)
– 4 channels, 2 inputs per gate
– Symmetrical output drive: ±3.4 mA (IOL / IOH typ.)
– Schmitt-trigger thresholds (VCC dependent): VIH ≈ 3.5 V – 11 V, VIL lower hysteresis band
– Propagation delay: 60 ns (typ.) @ VCC = 15 V, CL = 50 pF
– Wide operating temperature: –40 °C to +125 °C

**Typical Applications:**
– Waveform and pulse shaping
– Astable (free-running) multivibrators / oscillators
– Monostable (one-shot) multivibrators
– Noise suppression and signal conditioning
– Debouncing circuits
– High-noise immunity logic in industrial and automotive environments
– Low-power wide-voltage-range systems

A versatile, high-noise-immunity CMOS logic solution ideal for timing circuits, oscillators, pulse generation, and robust digital designs requiring wide supply range and excellent tolerance to slow or noisy inputs.