SN54AHC139 and SN74AHC139 are dual 2-line to 4-line decoders/demultiplexers designed for 2V to 5.5V VCC operation. They are designed for high-speed memory decoding or data transmission systems and incorporate two enable inputs to simplify cascading and/or data reception. They have latch-up performance exceeding 250mA per JESD 17 and ESD protection exceeding JESD 22.
The document describes the SN54AHC139 and SN74AHC139 devices as dual 2-line to 4-line decoders/demultiplexers designed for high-speed memory decoding and data-routing applications. These chips operate with a supply voltage range of 2 V to 5.5 V and feature fully buffered inputs.
| Operating Temperature (Military) | -55°C to 125°C |
|---|---|
| High-Level Output Current (Vcc=3.3V) | -4 mA |
The devices operate with a supply voltage between 2 V and 5.5 V.
The typical value is 13 pF at a frequency of 1 MHz.