˙Only 42 single word instructions
˙5-level deep hardware stack
|
Device |
Pins # |
I/O # |
EPROM/ROM (Byte) |
RAM (Byte) |
|
FM8PS54/S54E |
18 |
16 |
512 |
49 |
|
FM8PS56/S56E |
18 |
16 |
1K |
49 |
˙8-bit real time clock/counter with 8-bit programmable prescaler
˙On chip Watchdog Timer (WDT) with internal oscillator for reliable operation and soft-ware watch-dog enable/disable control
˙2 I/O ports with independent direction control
˙Soft-ware I/O pull-high/pull-down or open-drain control
˙1 internal interrupt source; 2 external interrupt source
˙Wake-up from SLEEP mode
˙Built-in 8MHz, 4MHz, 1MHz, and 455KHz internal RC oscillator
|
