The MB90246A series is a 16-bit microcontroller optimum to control mechatronics such as a hard disk drive unit. The instruction set of F2MC-16F CPU core inherits AT architecture of F2MC*-16/16H family with additional instruction sets for high-level languages, extended addressing mode, enhanced multiplication/division instructions, and enhanced bit manipulation instructions. The microcontroller has a 32-bit accumulator for processing long word data (32-bit). The MB90246A series contains a production addition unit as peripheral resources for enabling easy implementation of functions supported by IIR and FIR digital filters. It also supports a wealth of peripheral functions including: - an 8/10-bit A/D converter having eight channels; - an 8-bit D/A converter having three channels; - UART; - an 8-bit PWM timer having four channels; - a timer having three plus one channels; - an input capture (ICU) having two channels; and - a DTP/external interrupt circuit having four channels.