■ DESCRIPTIONS
The FUJITSU MB90470 Series is a 16-bit general-purpose microcontroller designed for consumer products and other process control applications requiring high-speed and real-time processing.
The F2MC-16LX CPU core instruction set retains the AT architecture of the F2MC*1 family, with additional instructions for use with high-level languages, expanded addressing mode, enhanced multiply and divide instructions, and full bit processing. Also included is a built-in 32-bit accumulator for long-word processing.
Peripheral resources built into the MB90470 series include 8/16-bit PPG, expanded I/O serial interface, UART, 10-bit A/D converter, 16-bit input-output timer, 8/16-bit up-counter, PWC timer, I2C*2 interface, DTP/external interrupt, chip select, and 16-bit reload timer.

■ FEATURES
• Clocks
    Minimum instruction execution time :
    50.0 ns at 5 MHz base oscillation with 4 × multiplier (internal operation at 20 MHz/3.3 V ± 0.3 V)
    62.5 ns at 4 MHz base oscillation with 4 × multiplier (internal operation at 16 MHz/3.0 V ± 0.3 V)
    Uses PLL clock multiplier.
• Maximum memory size
    16 Mbytes
• Instruction set optimized for control applications
    Handles bit, byte, word, long-word data
    23 standard addressing modes
    32-bit accumulator for enhanced high-precision calculation
    Signed multiply-divide and expanded RETI instructions
• Instruction system compatible with high-level language (C) multitasking
    System stack pointer
    Instruction set correlation and barrel shift instructions
• Non-multi bus or multi-bus compatible
• Program patch function (for two address pointers)
• Improved execution speed
    4-byte queue
• Powerful interrupt functions
    8 external interrupt functions with 8-level programmable priority
• Data transfer functions (µDMA or Extended intelligent I/O service)
    16 channels maximum
    µDMA maximum assured operation frequency : 16 MHz
    Extended intelligent I/O service maximum assured operation frequency : 20 MHz
• Built-in ROM
    Flash versions : 256 KB, Mask ROM versions : 128 KB/256 KB
• Built-in RAM
    10 KB/16 KB
• General purpose ports
    84 ports maximum
    (includes 16 ports with input pull-up resistance setting, 14 ports with output open drain setting)
• A/D converter
    RC sequential comparator type, 8 channels
    10-bit resolution, conversion time 4.65 µs (at 20 MHz operation)
• I2C interface
    1 channel
• µPG
    1 channel
• UART
    1 channel
• I/O expansion serial interface (SIO)
    2 channels
• 8/16-bit up/down timer
    1 channel
• 16-bit PWC
    3 channels (including 2-channel input comparison function)
• 16-bit reload timer
    1 channel (8-bit × 2-channel, 16-bit × 1-channel mode switching function provided)
• 16-bit input-output timer
    2-channel input capture, 6-channel output compare, 1-channel free run timer
• 2 built-in clock generator systems
• Low power modes
    Stop, sleep, CPU intermittent mode, watch mode, etc.
• Package options
    QFP100/LQFP100
• Process
    CMOS technology
• Supply voltage
    Can operate on 3 V single supply systems (with 5 V interface provided by some pins with 3/5 V dual-supply capability)