HD6433308 Datasheet, PDF (22/349 Pages) Hitachi Semiconductor – Hitachi Single-Chip MicroComputer

A/D Converter: A/D conversion can be performed in single or scan mode.
• Eight-bit resolution
• Eight input channels; selection of single mode or scan mode
• Conversion can be started by an external trigger signal
• Sample-and-hold
I/O Ports: Pins not used for other functions are available for general-purpose input and output.
I/O is memory-mapped, with the CPU reading and writing the port registers in three states via an 8-
bit internal bus.
• 58 Input/output pins (including 16 pins with LED driving capability)
• 8 Input-only pins
Interrupts: With a 10MHz clock rate, interrupt response times are on the order of 2 or 3µs (when
the vector table and stack are located in on-chip memory).
• 9 External interrupts: NMI and IRQ0 to IRQ7
• 19 Internal interrupts
Free-Running Timer: The time base is a 16-bit free-running counter that can be internally or
externally clocked. Applications range from programmable pulse output to counting or timing of
external events.
• Two independent, comparator-controlled outputs
• Four input capture channels
• Input capture buffering
8-Bit Timers: Two independent 8-bit timers support applications such as programmable pulse
output and external event counting.
• Internal or external clocking
• Output controlled by values in two compare registers
PWM Timers: Two independent timers are provided for pulse-width modulated output. Duty
cycles from 0 to 100% can be selected with 1/250 resolution.
Power-Down State: In the three power-down modes some or all chip functions are halted but
memory contents are retained.
• Sleep mode: CPU halts to save power while waiting for an interrupt
• Software standby mode: entire chip halts to save power while waiting for an external interrupt
• Hardware standby mode: totally shut down, but on-chip RAM contents are held
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