This document describes the features of the M74HC139, a high-speed CMOS quad 2-input NAND gate. It features high speed, low power dissipation, high noise immunity, symmetrical output impedance, balanced propagation delays, and wide operating voltage range. The product is suitable for gating and demultiplexing applications.
The M74HC139 is a dual 2‑to‑4 decoder/demultiplexer implemented in high‑speed CMOS technology. It features an active‑low enable input, static‑discharge protected inputs, and symmetrical output impedance. The device is pin‑compatible with the 74 series 139 family and is offered in DIP‑16, SOP‑16 and TSSOP‑16 packages.
Electrical specifications include a recommended supply voltage of 2 V to 6 V, typical propagation delay of 130 ns at 2 V, and a maximum power dissipation of 500 mW (derated to 300 mW above 65 °C). Mechanical data provide dimensions for the various package types, and the datasheet includes absolute maximum ratings and capacitive characteristics.
| Supply Voltage (absolute maximum) | -0.5 V to +7 V |
|---|---|
| Power Dissipation (max at 65 °C) | 500 mW |
| Input High Level Voltage (VIH) at Vcc=2 V | 2.0 V |
| Package Types | DIP‑16, SOP‑16, TSSOP‑16 |
The DIP package is a 16‑pin plastic DIP.
Yes, all inputs have protection circuits against static discharge.