AKAI MB88525B-152M

AKAI MB88525B-152M is a vintage 4-bit CMOS single-chip microcomputer manufactured by Fujitsu. It belongs to the MB88520B series and was commonly used as a system control microcontroller in Akai audio equipment (such as cassette decks) from the late 1980s.

Technical Details

• Architecture: 4-bit single-chip CMOS microcomputer.
• Core Series: Part of the Fujitsu MB88500 architecture.
• Key Features:
• VFD Driver: Includes built-in Vacuum Fluorescent Display (VFD) driver ports, essential for the digital displays on vintage Akai decks.
• I/O Ports: Multi-I/O configuration for managing front-panel buttons and mechanical tape transport controls.
• Voltage: Typically operates on a 5V supply common for CMOS logic of that era.