Texas Instruments 20-SOIC SN74ALS518DW

The part number SN74ALS518DW refers to a BCD decade counter IC from Texas Instruments. This device is part of the 74ALS series, which is an advanced low-power Schottky (ALS) logic family, designed for high-speed operation with low power consumption. The SN74ALS518 specifically functions as a four-stage binary-coded decimal (BCD) counter that offers P=Q outputs and open-collector outputs for cascading multiple counters or interfacing with other digital circuits. It is typically available in a DIP package and operates within a specified voltage range, providing reliable counting functionality in digital systems.