Mitsubishi MB8851A-224M

Mitsubishi (Fujitsu) MB8851A-224M is a 4-bit CMOS single-chip microcomputer belonging to the MB88510/MB8850 series.

Key Specifications

The "224M" suffix typically denotes a specific mask-programmed ROM version, meaning the code inside was pre-programmed at the factory for a particular application. 

• Architecture: 4-bit CMOS Single-Chip Microcomputer.
• Package Type: DIP-42 (Dual In-line Package with 42 pins).
• Core Technology: CMOS version of the earlier NMOS MB88410 series.
• Integrated Features:
• On-chip A/D Converter (typical for the 510 series).
• Instruction set compatible with the MB8840/MB8850 families.
• Often includes Vacuum Fluorescent Display (VFD) driving capability in certain variants.