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Latest Circuit Designs May 30, 2014 Simple Logic Gates Combination Lock The 74AHC86; 74AHC02 are high-speed Si-gate CMOS devices and are pin compatible with Low-power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74AHC86; 74AHC02 provides a 2-input exclusive-OR and NOR function respectively. Bidirectional 12C Level Translator The PCA9306 allows bidirec...