| SBC Name |
MyMENSCH REV-A |
MyMENSCH REV-B |
MyMENSCH REV-C |
MENSCH | W65C02SXB | W65C816SXB | W65C134SXB | W65C265SXB |
| MSRP | $65.02 | $78.16 | $65.02 | $18.16 | $65.02 | $68.16 | $45.02 | $48.16 |
| CPU | W65C02i1M08SC | W65C816i1M16SA | W65C165i1M08SA | W65C265S | W65C02S | W65C816S | W65C134S | W65C265S |
| MPU | W65C02RTL | W65C816RTL | W65C02RTL | W65C816 | W65C02S | W65C816S | W65C02 | W65C816 |
| IO Voltage | 3.3V | 3.3V | 3.3V | 3.3V/5.0V | 5.0V | 5.0V | 5.0V | 5.0V |
| Speed | 14.7456 MHz | 14.7456 MHz | 14.7456 MHz | 3.6864 MHz | 8 MHz | 8 MHz | 3.6864 MHz | 3.6864 MHz |
| IO Lines | 87 | 88 | 88 | 24 | 40 | 40 | 24 | 24 |
| ROM Monitor | 2K | 2K | 2K | 8K | 2K | 2K | 4K | 8K |
| SRAM | 42K | 61K | 42K | 576B | 32K | 32K | 192B + 32K | 576B + 32K |
| FLASH | 32K | 184K | 114K | 0 | 128K | 128K | 128K | 128K |
| ADC | – | 12-bit x 9 | 12-bit x 9 | – | – | – | – | – |
| HW Multiply | 16×16 S/U | 16×16 S/U | 16×16 S/U | – | – | – | – | – |
| HW Divide | – | 32/32 U | – | – | – | – | – | – |
| SPI | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| I2C | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| VIA | 2 | 2 | 3 | 0 | 2 | 2 | 0 | 0 |
| ACIA/UART | 2 | 2 | 3 | 2 | 1 | 1 | 1 | 4 |
| Timers | 4 | 4 | 6 | 8 | 4 | 4 | 4 | 8 |
