25AA080A-I/MS

Memory IC Overview

The Microchip Technology 25AA080A-I/MS is an 8 Kbit Serial Electrically Erasable PROM featuring a 1024 x 8-bit organization. It utilizes a standard SPI-compatible serial bus with SCK, SI, SO, and CS signals for communication. The device supports a maximum clock frequency of 10 MHz and operates within a supply voltage range of 1.8 V to 5.5 V. It includes a 16-byte page write buffer and self-timed erase/write cycles with a maximum duration of 5 ms. The component is housed in an 8-lead MSOP package and is rated for industrial temperatures from -40 °C to +85 °C.

Memory IC Feature Summary

• Integrated hardware write protection via the WP pin and Status Register bits to prevent inadvertent data modification.
• Supports sequential reading and automatic address pointer incrementation across memory boundaries.
• Includes a Hold function that pauses serial communication without resetting the internal sequence state.

Memory IC Applications

• Microcontroller system configuration storage
• Calibration data retention
• Parameter logging in industrial instrumentation

Memory IC Procurement Notes

Verify the specific suffix 'I/MS' confirms the Industrial temperature grade (-40°C to +85°C) and the 8-lead MSOP surface-mount package. Ensure the design requires the 1.8V minimum operating voltage characteristic of the 'AA' variant rather than the 2.5V minimum found in 'LC' versions. Confirm the 16-byte page size requirement matches this 'A' version specification.

Memory IC Selection Notes

Select this part when a low-voltage (1.8V compatible) EEPROM with high-speed SPI interface is required. The 16-byte page size distinguishes it from the 32-byte 'B' version devices. The MSOP package is suitable for space-constrained printed circuit board layouts requiring surface-mount assembly techniques.

Memory IC Part Context

This component belongs to the 25XX080A/B family of 8 Kbit Serial EEPROMs manufactured by Microchip Technology. The 'AA' designation indicates a 1.8V to 5.5V operating voltage range, while the 'I' suffix specifies the industrial temperature rating. The 'MS' suffix identifies the 8-lead Plastic Micro Small Outline Package.

Memory IC Replacement Considerations

25AA080AT-I/MS

Memory IC FAQ

How does the HOLD pin function during operation?

The HOLD pin allows the host to pause serial communication without resetting the sequence. When pulled low while selected, inputs are ignored until the pin is released.

What happens if a page write crosses a physical boundary?

If a page write attempts to cross a physical page boundary, the data wraps around to the beginning of the current page instead of writing to the next page.