The RL78/G22 key functions are, SNOOZE-mode sequencer, capacitive touch, and security. The SNOOZE-mode sequencer can execute operations without CPU to reduce power consumption. The high-sensitivity and high-precision capacitive touch sensors enable the implementation of touch and touchless functions for waterproof applications and detecting a wide range of materials in customers’ applications. Additionally, RL78/G22 has a greater number of capacitive touch channels than RL78/G23 in the same pin packages. The security functions prevent leakage, tampering, and spoofing.