H8/3656 Ver la hoja de datos (PDF) - Renesas Electronics

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H8/3656

single-chip microcomputers

Renesas Electronics 

Table 1-1 Features (cont)

Item

Description

Interrupts

33 interrupt sources

• 12 external interrupt sources (IRQ3 to IRQ0, INT7 to INT0)

• 21 internal interrupt sources

Clock pulse generators Two on-chip clock pulse generators

• System clock pulse generator: 1 to 10 MHz

• Subclock pulse generator: 32.768 kHz

Power-down modes Seven power-down modes

• Sleep (high-speed) mode

• Sleep (medium-speed) mode

• Standby mode

• Watch mode

• Subsleep mode

• Subactive mode

• Active (medium-speed) mode

Memory

Large on-chip memory

• H8/3657: 60-kbyte ROM, 2-kbyte RAM

• H8/3656: 48-kbyte ROM, 2-kbyte RAM

• H8/3655: 40-kbyte ROM, 2-kbyte RAM

• H8/3654: 32-kbyte ROM, 1 kbyte RAM

• H8/3653: 24-kbyte ROM, 1 kbyte RAM

• H8/3652: 16-kbyte ROM, 1 kbyte RAM

I/O ports

67 pins

• 59 I/O pins

• 8 input pins

Timers

Five on-chip timers

• Timer A: 8-bit timer

Count-up timer with selection of eight internal clock signals divided from

the system clock (ø)* and four clock signals divided from the watch clock

(øw)*

• Timer B1: 8-bit timer

— Count-up timer with selection of seven internal clock signals or event

input from external pin

— Auto-reloading

Note: * ø and øW are defined in section 4, Clock Pulse Generators.

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