■ DESCRIPTION
The MB90820B series is a line of general-purpose, Fujitsu 16-bit microcontrollers designed for process control applications which require high-speed real-time processing, such as consumer products.
While inheriting the AT architecture of the F2MC family, the instruction set for the F2MC-16LX CPU core of the MB90820B series incorporates additional instructions for high-level languages, supports extended addressing modes, and contains enhanced multiplication and division instructions as well as a substantial collection of improved bit manipulation instructions. In addition, the MB90820B series has an on-chip 32-bit accumulator which enables processing of long-word data.
The peripheral resources integrated in the MB90820B series include : an 8/10-bit A/D converter, 8-bit D/A converters, UARTs (SCI) 0, 1, multi-functional timer (16-bit free-run timer, input capture units (ICUs) 0 to 3, output compare units (OCUs) 0 to 5, 16-bit PPG timer 0, waveform generator), 16-bit PPG timer 1, 2, PWC 0, 1, 16-bit reload timer 0, 1 and DTP/external interrupt.

■ FEATURES
• Minimum execution time of instruction : 42 ns / 4 MHz oscillation (uses PLL clock multiplication) maximum multiplier = 6
• Maximum memory space 16 M bytes, Linear/bank access
• Instruction set optimized for controller applications
   Supported data types : bit, byte, word, and long-word types
   Standard addressing modes : 23 types
   32-bit accumulator enhancing high-precision operations
   Signed multiplication/division instructions and enhanced RETI instructions
• Enhanced high level language (C) and multi-tasking support instructions
   Use of a system stack pointer
   Symmetrical instruction set and barrel shift instructions
• Program patch function (for two address pointers)
• Increased execution speed : 4-byte instruction queue
• Powerful interrupt function
   Up to eight priority levels programmable
   External interrupt inputs : 8 channels
• Automatic data transmission function independent of CPU operation
   Up to 16 channels for the extended intelligent I/O service
   DTP request inputs : 8 channels
• Internal ROM
   Flash memory : 64 K/128 K bytes with flash security
   MASK ROM : 64 K/128 K bytes
• Internal RAM
   Evaluation product : 16 K bytes
   Flash memory : 4 K/8 K bytes
   MASK ROM : 4 K bytes
• General-purpose ports
   Up to 66 channels (ports where pull-up resistor can be configured : 32 channels)
• A/D Converter (RC) : 16 channels
   8/10-bit resolution selectable
   Conversion time : Min 3 µs (24 MHz operation, including sampling time)
• 8-bit D/A Converter : 2 channels
• UART : 2 channels
• 16-bit PPG timer : 3 channels
   Mode switching function provided (PWM mode or one-shot mode)
   ch.0 can be worked with multi-functional timer or independently
• 16-bit reload timer : 2 channels
• 16-bit PWC timer : 2 channels
• Clock supervisor
• Multi-functional timer
   Input capture : 4 channels
   Output compare with selectable buffer : 6 channels
   Free-run timer with up or up-down mode selection and selectable buffer: 1 channel
   16-bit PPG timer : 1 channel
   Waveform generator : (16-bit timer : 3 channels, 3-phase waveform or dead time)
• Time-base timer/watchdog timer : 18-bit
• Low-power consumption mode :
   Sleep mode
   Stop mode
   CPU intermittent operation mode
• Package :
   LQFP-80 (FPT-80P-M21 : 0.50 mm pitch)
   LQFP-80 (FPT-80P-M22 : 0.65 mm pitch)
   QFP-80 (FPT-80P-M06 : 0.80 mm pitch)
• CMOS technology