onsemi 20-SOIC 74AC521SC

The 74AC521SC is an integrated circuit (IC) from the 74AC logic family, designed for high-speed and low power consumption applications. It's likely a TTL-compatible device in a small-outline package (SOP), commonly used for implementing specific logic functions such as multiplexing or demultiplexing. The chip can be sourced through online platforms like Taobao and Alibaba for wholesale and retail purchases. However, direct technical specifications and PDF datasheets were not found on the specified dates. Customers should consult manufacturers' official documentation or authorized distributors for detailed information and procurement.