| Part No | ROM | RAM | I/O | Operation Voltage | E-Int | I-Int | Wakeup | Stack | Timer | PWM/IR | Inter face | IRC | Package |
| FM8PE513M | 1K | 49 | 6 | 2.0V~5.0V | 2 | 1 | yes | 5 | 1 | - | - | yes | PDIP8, SOP8, SOT23-6 |
| FM8PE513B | 1K | 49 | 6 | 1.8V~3.5V | 2 | 1 | Yes | 5 | 1 | - | - | yes | PDIP8, SOP8, SOT23-6 |
| FM8PB513B | 1K | 49 | 6 | 2.0V~5.5V | 2 | 1 | Yes | 5 | 1 | - | - | yes | PDIP8, SOP8, SOT23-6 |
| FM8PE53M | 1K | 49 | 12 | 2.0V~5.5V | 2 | 1 | Yes | 5 | 1 | - | - | yes | PDIP14,SOP14 |
| FM8PE53B | 1K | 49 | 12 | 1.8V~3.5V | 2 | 1 | Yes | 5 | 1 | - | - | yes | PDIP14,SOP14 |
| FM8PB53B | 1K | 49 | 12 | 2.0V~5.5V | 2 | 1 | Yes | 5 | 1 | - | - | yes | PDIP14,SOP14 |
| FM8PB56B | 1K | 49 | 16 | 2.0V~5.5V | 2 | 1 | Yes | 5 | 1 | - | - | yes | PDIP18, SOP18,SSOP20 |
| FM8PE59B | 4K | 144 | 20/24 | 2.3V~5.5V | 2 | 1 | Yes | 5 | 1 | IR | SPI | yes | PDIP28,SOP28, SSOP28PDIP32,SOP32 |