FM93C56N

Memory IC Overview

The FM93C56N is a 1-kbit Electrically Erasable Programmable Read-Only Memory (EEPROM) manufactured by onsemi. It features a Microwire-compatible 3-wire serial interface with a maximum clock frequency of 1 MHz. The memory organization supports 64 x 16 bit access. Designed for through-hole mounting, it utilizes an 8-pin DIP package. The device operates within a supply voltage range of 4.5 V to 5.5 V and functions at temperatures between 0°C and +70°C. Data retention is specified at 40 years.

Memory IC Feature Summary

• Supports Microwire 3-wire serial communication protocol
• Provides non-volatile data storage with long-term retention
• Compatible with standard 5V logic systems

Memory IC Applications

• Industrial control system configuration storage
• Embedded device parameter logging
• Consumer electronics calibration data retention

Memory IC Procurement Notes

Verify the specific manufacturer source due to discontinued status. Confirm package integrity and pin compatibility during replacement planning. Check for RoHS compliance variations in legacy stock. Ensure voltage levels match the 4.5V to 5.5V operational requirement. Validate datasheet revisions against current design specifications.

Memory IC Selection Notes

Select this component when a 1-kbit capacity is sufficient for application needs. Choose the DIP-8 package for through-hole assembly requirements. Ensure the operating environment remains within the commercial temperature range. Verify that the 5V supply rail aligns with the specified voltage limits. Consider interface compatibility with existing Microwire controllers.

Memory IC Part Context

This EEPROM belongs to the FM93Cxx series of serial memory devices from onsemi. It shares functional similarities with other Microwire-compatible parts but offers specific capacity and packaging options. The series is designed for cost-effective data storage in embedded applications requiring reliable non-volatile memory solutions.

Memory IC Replacement Considerations

CAT93C56L serves as a direct functional substitute with identical 1-kbit capacity and interface. CAV93C56VE-GT3 offers similar functionality in a surface-mount SOIC-8 package. Verify pinout compatibility before swapping packages.