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 ...

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