DESCRIPTION

The MB89570 series is a general-purpose single chip microcontroller that contains, in addition to a compact instruction set, such rich peripheral functions as the dual clock control, 5-stage operation speed control, SM bus compliant I²C bus interface, comparator for battery control, 10-bit A/D converter, LCD controller/driver, and external interrupts.

FEATURES

• Package
  
  • LQFP package (0.5 mm pitch)
  • TQFP package (0.4 mm pitch)
• High-speed operation at low voltage
  
  • Minimum instruction execution time: 0.4 µs (for oscillator frequency 10 MHz)
• F²MC-8L CPU core (Instruction set appropriate to the controller)
  
  • Multiplication/division instruction
  • 16-bit operation
  • Branch instruction by the bit test
  • Bit operation instructions, etc.
• Dual clock control
  
  • Main clock: up to 10 MHz (4 clock operating speeds can be set. Oscillation stops in subclock mode)
  • subclock: 32.768 kHz (Operating clock in subclock mode)
• Dual timer operation
  
  • 21-bit timebase timer
  • Watch prescaler (17 bits)
• UART/serial interface
  
  • UART/SIO can be switched.
• I²C
  
  • SM bus compliant
  • Timeout can be detected.
• Multi-address I²C
  
  • SM bus compliant
  • Timeout can be detected.
  • 6 addresses support
  • ALERT function support
• Bridge circuit
  
  • Three bus connection routes can be switched by the I²C/multi-address I²C (UART)
• External interrupt
  
  • External interrupt (4 x edge detection): Four inputs are independent and can be used for release from low-power mode (The rising edge, falling edge, and both edges can be selected for edge detection)
• Comparator function
  
  • A selecting circuit for battery control is contained.
  • A comparator capable of changing the hysteresis width is contained.
• 10-bit A/D converter
  
  • 12 channels of A/D converters with the 10-bit resolution are contained.
• 8-bit D/A converter
  
  • 8-bit D/A converter x 2 channels
• 16-bit timer counter
  
  • Usable as an event counter
• 8/16-bit timer/counter
  
  • Usable as 8-bit timer x 2 channels or 16-bit timer x 1 channel
• LCD controller/driver
  
  • 14SEG x 4COM (up to 56 pixels)
  • Exclusively for segment output: 8
  • For both of general purpose and LCD segment: 6
• Low-power consumption (standby mode)
  
  • Stop mode (Almost no power consumption for stopping oscillation)
  • Sleep mode (about 1/3 of the normal power consumption to stop CPU)
  • Watch mode (Power consumption to stop operations other than the watch prescaler is very low)
  • Sub-mode
• Up to 82 I/O ports
  
  • General purpose I/O port (N channel open-drain): 28
  • General purpose I/O port (CMOS): 49
  • General purpose input port (CMOS): 1
  • General purpose output port (N channel open drain): 4

DOCUMENTATION

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PDF Electric Specification Table DRAFTV1-0 (17 pages, 196 KB)

PDF Hardware Manual V1-00 (563 pages, 7082 KB)

PDF Hardware Manual Corrections X1-00 (2 pages, 75 KB)

PDF (PFV package 0.5mm LQFP (1 page, 82 KB)

PDF Package 0.4mm plastic TQFP (1 page, 112 KB)