93C56B-I/SN

Memory IC Overview

The Microchip Technology 93C56B-I/SN is a 2-kbit Electrically Erasable Programmable Read-Only Memory (EEPROM) IC. It features a Microwire serial interface with a maximum clock frequency of 2 MHz and an access time of 200 ns. The device offers a memory organization of 128 x 16 bits and operates within a supply voltage range of 4.5 V to 5.5 V. Packaged in an 8-SOIC surface-mount format, it supports through-hole or SMD installation styles depending on the specific variant suffix, though this model specifies SOIC. It ensures data retention for up to 200 years and functions reliably across an industrial temperature range from -40°C to +85°C.

Memory IC Feature Summary

• Supports Microwire three-wire serial communication protocol for efficient data transfer.
• Provides non-volatile storage with high data retention capabilities lasting up to two centuries.
• Operates within standard industrial temperature ranges suitable for robust electronic environments.

Memory IC Applications

• Industrial control systems requiring persistent parameter storage
• Consumer electronics needing configuration data retention
• Automotive modules utilizing serial EEPROM interfaces

Memory IC Procurement Notes

Verify the exact package dimensions against the 8-SOIC specification during procurement. Confirm the operating voltage requirements match the 4.5 V to 5.5 V range specified for this industrial grade part. Ensure compatibility with Microwire interface timing constraints before finalizing component selection for production runs.

Memory IC Selection Notes

Select this component when a 2-kbit capacity with Microwire interface is required. Compare against the 93LC56B series if lower voltage operation near 2.5 V is necessary, as that variant differs in electrical specifications. Consider the PDIP package option if through-hole mounting is preferred over surface mount technology for the same functional core.

Memory IC Part Context

This part belongs to the Microchip 93C56 family of serial EEPROMs. It shares architectural similarities with other members like the 93C56A and 93C56C, differing primarily in speed and organization. The 'I' suffix denotes industrial temperature rating, while '/SN' indicates the 8-SOIC package type. This family is widely used for storing calibration data and user settings in embedded systems.

Memory IC Replacement Considerations

The 93LC56B-I/SN serves as a compatible alternative with extended voltage support down to 2.5 V. Verify pinout compatibility and interface timing differences when substituting with generic Microwire EEPROMs. No direct single-part cross-reference is confirmed without checking specific electrical tolerances.