25AA010A-I/P

Memory IC Overview

The Microchip Technology 25AA010A-I/P is a 1 Kbit (128 x 8) Serial Electrically Erasable Programmable Read-Only Memory (EEPROM). It operates with a supply voltage range of 1.8V to 5.5V and supports a maximum clock frequency of 10 MHz via an SPI-compatible serial bus. The device features a write page mode allowing up to 16 bytes per cycle, self-timed erase/write cycles with a maximum duration of 5 ms, and industrial temperature range operation from -40°C to +85°C.

Memory IC Feature Summary

• Supports sequential read operations and page write modes for efficient data handling.
• Includes built-in hardware write protection mechanisms such as a write enable latch and dedicated write-protect pin.
• Features power-on/off data protection circuitry to prevent inadvertent writes during power transitions.

Memory IC Applications

• Configuration storage in microcontroller-based systems
• Calibration parameter persistence
• Device identification and tracking data logging

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the Industrial temperature grade (-40°C to +85°C) and 'P' denotes the PDIP package. Confirm RoHS compliance status matches current manufacturing standards. Ensure the source document explicitly lists the 25AA010A variant rather than the 25LC010A, as voltage ranges differ.

Memory IC Selection Notes

Select this component when low-voltage operation down to 1.8V is required, distinguishing it from the 25LC010A which starts at 2.5V. Choose the PDIP package for through-hole mounting requirements. Consider the 10 MHz clock speed for high-throughput SPI applications within the specified industrial temperature limits.

Memory IC Part Context

This part belongs to the 25XX010A family of 1 Kbit SPI EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 25LC010A but differs primarily in its lower minimum operating voltage specification. The device utilizes standard SPI protocols for communication and includes comprehensive write protection features common to this memory class.

Memory IC Replacement Considerations

The 25LC010A-I/P is a functional substitute with identical pinout and instruction sets, though it requires a minimum supply voltage of 2.5V instead of 1.8V. Verify voltage compatibility before substitution.