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BUY 74F521SCX https://www.utsource.net/itm/p/11242498.html
IC COMPARATOR IDENTITY 8B 20SOIC
Description: The 74F521SCX is a 4-bit magnitude comparator with open-collector outputs. Features: Open-collector outputs TTL-compatible inputs Low power consumption High noise immunity High speed Low power Schottky Applications: Digital systems Computer systems Automotive systems Industrial control systems Robotics (For reference only)