New 8FX 8-bit Microcontrollers
The MB95810K Series is a series of general-purpose, single-chip microcontrollers. In addition to a compact instruction set, the
microcontrollers of these series contain a variety of peripheral resources.
■ F2MC-8FX CPU core
❐ Instruction set optimized for controllers
• Multiplication and division instructions
• 16-bit arithmetic operations
• Bit test branch instructions
• Bit manipulation instructions, etc.
❐ Selectable main clock source
• Main oscillation clock (up to 16.25 MHz, maximum ma-
chine clock frequency: 8.125 MHz)
• External clock (up to 32.5 MHz, maximum machine clock
frequency: 16.25 MHz)
• Main CR clock (4 MHz 2%)
• Main CR PLL clock
- The main CR PLL clock frequency becomes 8 MHz
2% when the PLL multiplication rate is 2.
- The main CR PLL clock frequency becomes 10 MHz
2% when the PLL multiplication rate is 2.5.
- The main CR PLL clock frequency becomes 12 MHz
2% when the PLL multiplication rate is 3.
- The main CR PLL clock frequency becomes 16 MHz
2% when the PLL multiplication rate is 4.
❐ Selectable subclock source
• Suboscillation clock (32.768 kHz)
• External clock (32.768 kHz)
• Sub-CR clock (Typ: 100 kHz, Min: 50 kHz, Max: 150 kHz)
❐ 8/16-bit composite timer 2 channels
❐ 8/16-bit PPG 2 channels
❐ 16-bit PPG timer 2 channels
❐ 16-bit reload timer 1 channel
❐ Time-base timer 1 channel
❐ Watch prescaler 1 channel
■ UART/SIO 1 channel
❐ Full duplex double buffer
❐ Capable of clock asynchronous (UART) serial data transfer
and clock synchronous (SIO) serial data transfer
■ I2C bus interface 1 channel
❐ Built-in wake-up function
❐ Full duplex double buffer
❐ Capable of clock asynchronous serial data transfer and clock
synchronous serial data transfer
■ External interrupt 12 channels
❐ Interrupt by edge detection (rising edge, falling edge, and
both edges can be selected)
❐ Can be used to wake up the device from different low power
consumption (standby) modes
■ 8/10-bit A/D converter 12 channels
❐ 8-bit or 10-bit resolution can be selected.
■ Low power consumption (standby) modes
❐ There are four standby modes as follows:
• Stop mode
• Sleep mode
• Watch mode
• Time-base timer mode
❐ In standby mode, two further options can be selected: normal
standby mode and deep standby mode.
■ I/O port (no. of I/O ports: 58)
❐ General-purpose I/O ports (CMOS I/O): 54
❐ General-purpose I/O ports (N-ch open drain): 4
■ On-chip debug
❐ 1-wire serial control
❐ Serial writing supported (asynchronous mode)
■ Hardware/software watchdog timer
❐ Built-in hardware watchdog timer
❐ Built-in software watchdog timer
■ Power-on reset
❐ A power-on reset is generated when the power is switched
■ Low-voltage detection (LVD) reset circuit
❐ The LVD function is enabled by default. For details, see “18.2
Recommended Operating Conditions” in
❐ The LVD function can be controlled through software.
❐ The LVD reset circuit control register (LVDCC) enables or
disables the LVD reset.
❐ The LVD reset circuit has an internal low-voltage detector.
The combination of detection voltage and release voltage
can be selected from four options.
■ Comparator 2 channels
❐ Built-in dedicated BGR
❐ The comparator reference voltage can be selected between
the BGR voltage and the comparator pin.
■ Clock supervisor counter
❐ Built-in clock supervisor counter
■ Dual operation Flash memory
❐ The program/erase operation and the read operation can be
executed in different banks (upper bank/lower bank) simul-
■ Flash memory security function
❐ Protects the content of the Flash memory.
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 002-04694 Rev. *A
• San Jose, CA 95134-1709 • 408-943-2600
Revised March 29, 2016