93AA56C-I/MS

Memory IC Overview

The Microchip Technology 93AA56C-I/MS is a 2Kbit low-voltage serial Electrically Erasable PROM (EEPROM) housed in an 8-lead MSOP package. It features a 3-Wire Microwire compatible serial I/O interface and supports a supply voltage range of 1.8V to 5.5V. The device offers word-selectable organization, allowing configuration as either 256 x 8-bit or 128 x 16-bit via the ORG pin. It operates within an industrial temperature range of -40°C to +85°C and provides high endurance with 1,000,000 erase/write cycles and data retention exceeding 200 years.

Memory IC Feature Summary

• Word-selectable memory organization configurable via external logic levels on the ORG pin for dedicated 8-bit or 16-bit communication.
• Integrated power-on/off data protection circuitry prevents accidental data disturbance during voltage transitions.
• Self-timed erase and write cycles include automatic Erase All (ERAL) functionality prior to Write All (WRAL) operations.
• Ready/Busy status signal available on the Data Out pin to monitor programming completion without polling delays.

Memory IC Applications

• Low-power nonvolatile memory storage in battery-operated devices
• Configuration data storage for embedded systems requiring word-size flexibility
• Industrial control systems needing reliable parameter retention over extended lifespans

Memory IC Procurement Notes

Verify that the specific order quantity matches the manufacturer's standard packaging configurations, such as tubes for the MSOP variant. Confirm that the component meets RoHS compliance requirements and Pb-free finish specifications if mandated by your assembly process. Ensure that the industrial temperature grade (-40°C to +85°C) aligns with your system's operational environmental constraints before finalizing procurement.

Memory IC Selection Notes

Select this part when a flexible memory architecture is required, as the ORG pin allows switching between 8-bit and 16-bit word sizes. It is suitable for designs operating at lower voltages down to 1.8V, unlike the 93C56 series which requires higher voltages. Consider the MSOP package for space-constrained surface-mount applications where leaded packages are not feasible.

Memory IC Part Context

This component belongs to the Microchip 93XX56A/B/C family of 2Kbit EEPROMs. The 'AA' designation indicates support for the full 1.8V to 5.5V supply range, while the 'C' suffix denotes the presence of the ORG pin for dynamic word-size selection. The 'I' suffix specifies the industrial temperature rating, and 'MS' identifies the 8-lead Mini Small Outline Package.

Memory IC Replacement Considerations

The 93AA56B-I/MS serves as a direct functional substitute if fixed 16-bit organization is sufficient, eliminating the need for the ORG pin connection. For designs requiring only 8-bit access, the 93AA56A-I/MS is compatible but lacks the ORG pin functionality.