SPMC65P2104A and SPMC65P2102A are the members of SPMC65X family and OTP solutions of the micro-controller. SPMC65P2104A is a superset of SPMC65P2102A. These two devices share similar core and peripherals with different memory size. The ROM size on the SPMC65P2102A is less than SPMC65P2104A. These two devices support the following stand features described below. Major application fields are small home appliances, industry controller and battery charge.