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■DESCRIPTION

The MB90670/675 series is a member of 16-bit proprietary single-chip microcontroller F2MC*1-16L family designed to be combined with an ASIC (Application Specific IC) core. The MB90670/675 series is a high-performance general-purpose 16-bit microcontroller for high-speed real-time processing in various industrial equipment, OA equipment, and process control.

■FEATURES

?Clock

Embedded PLL clock multiplication circuit

Operating clock (PLL clock) can be selected from divided-by-2 of oscillation or one to four times the oscillation (at oscillation of 4 MHz, 4 MHz to 16 MHz).

Minimum instruction execution time of 62.5 ns (at oscillation of 4 MHz, four times the PLL clock, operation at Vcc of 5.0 V)

? CPU addressing space of 16 Mbytes

Internal addressing of 24-bit

External accessing can be performed by selecting 8/16-bit bus width (external bus mode)

? Instruction set optimized for controller applications

Rich data types (bit, byte, word, long word)

Rich addressing mode (23 types)

High code efficiency

Enhanced precision calculation realized by the 32-bit accumulator

? Instruction set designed for high level language (C) and multi-task operations

Adoption of system stack pointer

Enhanced pointer indirect instructions

Barrel shift instructions

? Enhanced execution speed

4-byte instruction queue

? Enhanced interrupt function

8 levels, 32 factors

? Automatic data transmission function independent of CPU operation

Extended intelligent I/O service function (EI2OS)

? Low-power consumption (standby) mode

Sleep mode (mode in which CPU operating clock is stopped)

Timebase timer mode (mode in which other than oscillation and timebase timer are stopped)

Stop mode (mode in which oscillation is stopped)

CPU intermittent operation mode

Hardware standby mode

?Process

CMOS technology

? I/O port

MB90670 series: Maximum of 65 ports

MB90675 series: Maximum of 84 ports

?Timer

Timebase timer/watchdog timer: 1 channel

8/16-bit PPG timer: 8-bit ×2 channels or 16-bit ×1 channel

16-bit reload timer: 2 channels

24-bit free run timer: 1 channel

? Input capture (ICU)

Generates an interrupt request by latching a 24-bit free run timer counter value upon detection of an edge input to the pin.

? Output compare (OCU)

Generates an interrupt request and reverse the output level upon detection of a match between the 24-bit free

run timer counter value and the compare setting value.

?I2C interface (in MB90675 series only)

? Serial I/O port for supporting Inter IC BUS