93LC56B-E/ST

Memory IC Overview

The Microchip Technology 93LC56B-E/ST is a 2Kbit low-voltage serial EEPROM utilizing advanced CMOS technology. It features a fixed 128 x 16-bit organization and operates within a supply voltage range of 2.5V to 5.5V. The device supports an industry-standard 3-wire Microwire serial interface with a maximum clock frequency of 2 MHz in this configuration. It includes power-on/off data protection, self-timed erase/write cycles, and a Ready/Busy status signal. The component is housed in an 8-lead TSSOP package and is rated for an industrial temperature range of -40°C to +125°C.

Memory IC Feature Summary

• Low-power CMOS technology designed for nonvolatile memory applications
• Industry standard 3-wire serial I/O interface compatible with Microwire protocols
• Power-on/off data protection circuitry prevents accidental data disturbance
• Self-timed erase and write cycles with automatic ready/busy status indication

Memory IC Applications

• Industrial control systems requiring reliable nonvolatile storage
• Automotive electronics operating in high-temperature environments
• Embedded devices needing compact serial EEPROM solutions
• Data logging applications with infrequent write requirements

Memory IC Procurement Notes

Verify the specific suffix 'E' confirms the extended temperature rating (-40°C to +125°C) and 'ST' denotes the TSSOP package. Confirm RoHS compliance and Pb-free status as per manufacturer specifications. Ensure the ordering code matches the required voltage and organizational parameters before procurement.

Memory IC Selection Notes

Select this part for applications requiring a dedicated 16-bit word size without an ORG pin configuration. It is suitable for designs needing operation up to 125°C ambient temperature. Compare against the 'I' grade variant if lower temperature ranges are sufficient. Ensure the system voltage remains above 2.5V for proper functionality.

Memory IC Part Context

This component belongs to the 93XX56A/B/C series of 2Kbit serial EEPROMs from Microchip Technology. The 'LC' designation indicates a low-voltage operation range starting at 2.5V. The 'B' suffix specifies a fixed 16-bit word organization, distinguishing it from the 8-bit 'A' version or the configurable 'C' version.

Memory IC Replacement Considerations

Direct substitutes include other variants within the 93LC56B family such as 93LC56B-I/ST for industrial temperature grades. Cross-family replacements like 93AA56B or 93C56B may require voltage level adjustments.