Texas Instruments 20-SOIC SN74ALS240ADW

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The SN74ALS240ADW is a quadruple 2-input NAND gate IC from Texas Instruments (TI). Part of the 74ALS series, it's designed for low power consumption and high speed operation using advanced Schottky TTL technology. This device contains four independent gates each accepting two inputs and providing a single output. It comes in a DW package suitable for through-hole mounting and is typically used in digital logic circuits for signal processing and system design. The "RE4" suffix might denote a specific manufacturer's code or package variation; exact details should be confirmed with the datasheet.