AM95C94JC

Overview

The AM95C94JC is a magnetic disk controller manufactured by Advanced Micro Devices. It is designed for managing data transfer and control signals in magnetic storage systems. The component operates with a standard 5V power supply and supports parallel interface communication. It is housed in a 40-pin plastic dual in-line package (PDIP) suitable for through-hole mounting. The device integrates necessary logic for sector addressing, error checking, and command decoding to facilitate reliable read and write operations on floppy disk drives.

Feature Summary

• Integrated magnetic disk controller functionality
• Supports sector-based data addressing
• Includes hardware error checking capabilities
• Compatible with standard 5V logic levels

Applications

• Floppy disk drive controllers
• Legacy computer storage subsystems
• Industrial data acquisition systems using magnetic media
• Embedded storage control units

Part Context

The AM95C94JC belongs to the AMD AM95C9x series of disk controllers, which also includes variants like the AM95C95 and AM95C98. This family was widely used in personal computers and embedded systems during the 1980s and 1990s. The JC suffix typically denotes a commercial temperature range and specific manufacturing lot codes within AMD's product line.

Replacement Considerations

Direct pin-to-pin replacements are limited due to the legacy nature of the component. Potential substitutes include other AMD AM95C9x series parts or generic disk controller ICs from manufacturers like Toshiba or Intel, though functional compatibility must be verified against specific timing and protocol requirements.