FM8PS56

FEELING TECHNOLOGY Devices Included in this Data Sheet: ‧ FM8PS54E/S56E : EPROM devices ‧ FM8PS54/S56 : Mask ROM devices FM8PS54/S56 EPROM/ROM-Based 8-Bit Microcontroller Series FEATURES ‧ Only 42 single word instructions ‧ All instructions are single cycle except for program branches which are two-cycle ‧ 13-bit wide instructions ‧ All ROM/EPROM area GOTO instruction ‧ All ROM/EPROM area subroutine CALL instruction ‧ 8-bit wide data path ‧ 5-level deep hardware stack ‧ Operating speed: DC-20 MHz clock input DC-100 ns instruction cycle Device FM8PS54/S54E FM8PS56/S56E Pins # 18 18 I/O # 16 16 EPROM/ROM (Byte) 512 1K RAM (Byte) 49 49 ‧ Direct, indirect addressing modes for data accessing ‧ 8-bit real time clock/counter (Timer0) with 8-bit programmable prescaler ‧ Internal Power-on Reset (POR) ‧ Built-in Low Voltage Detector (LVD) for Brown-out Reset (BOR) ‧ Power-up Reset Timer (PWRT) and Oscillator Start-up Timer(OST) ‧ On chip Watchdog Timer (WDT) with internal oscillator for reliable operation and soft-ware watch-dog enable/disable control ‧ Two I/O ports IOA and IOB with independent direction control (maximum 16 I/O pins) ‧ Soft-ware I/O pull-high/pull-down or open-drain control ‧ One internal interrupt source: Timer0 overflow; Two external interrupt source: INT pin, Port B input change ‧ Wake-up from SLEEP by INT pin or Port B input change ‧ Power saving SLEEP mode ‧ Built-in 8MHz, 4MHz, 1MHz, and 455KHz internal RC oscillator ‧ Programmable Code Protection ‧ Selectab...