25AA080C-I/ST

Memory IC Overview

The Microchip Technology 25AA080C-I/ST is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM featuring SPI-compatible interface. It operates within a supply voltage range of 1.8V to 5.5V and supports a maximum clock frequency of 10 MHz at 5.5V, scaling down to 3 MHz at 1.8V. The device utilizes a 16-byte page buffer for write operations and offers industrial temperature coverage from -40°C to +85°C. Key electrical characteristics include a maximum read current of 5 mA at 5.5V and standby current of 5 µA. Endurance exceeds 1 million erase/write cycles with data retention over 200 years.

Memory IC Feature Summary

• Integrated hardware write protection via WP pin and STATUS register bits for array and configuration security
• Serial communication pause capability through HOLD pin to manage bus arbitration without sequence reset
• Automatic address pointer incrementation enabling seamless sequential read operations across the memory array

Memory IC Applications

• Microcontroller system parameter storage
• Configuration data logging in industrial environments
• Calibration value retention for sensor interfaces

Memory IC Procurement Notes

Verify the specific suffix 'I/ST' confirms Industrial temperature grade (-40°C to +85°C) and TSSOP-8 packaging. Confirm RoHS compliance status as per latest manufacturer documentation. Ensure design-in compatibility with host SPI controller voltage levels given the 1.8V minimum operating threshold.

Memory IC Selection Notes

Select this component when low-voltage operation down to 1.8V is required alongside standard SPI connectivity. The 16-byte page size suits applications with moderate write frequencies. Compare against 25LC080C variants if higher minimum voltage tolerance is needed, or 25AA080D models if larger 32-byte pages are preferred for throughput optimization.

Memory IC Part Context

This part belongs to the 25XX080C/D family of 8Kbit serial EEPROMs. The 'AA' prefix denotes 1.8V compatible logic levels, distinguishing it from the 'LC' series which requires a minimum of 2.5V. The 'C' variant specifies a 16-byte page structure, whereas 'D' variants offer 32-byte pages. All share identical pinouts and instruction sets.

Memory IC Replacement Considerations

Direct functional substitutes within the same package and specification include the 25AA080C-I/SN (SOIC), 25AA080C-I/MS (MSOP), and 25AA080C-I/MN (TDFN). Cross-family replacements like the 25LC080C-I/ST require verification of minimum supply voltage compatibility.