25AA080T/SN

Memory IC Overview

The Microchip Technology 25AA080T/SN is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM featuring a Serial Peripheral Interface (SPI) compatible bus. It operates within a supply voltage range of 1.8V to 5.5V and supports a maximum clock frequency of 1 MHz at the lowest voltage, scaling up to 3 MHz at higher voltages. The device utilizes low-power CMOS technology with typical standby current of 500 nA and read current of 500 µA. It offers 16-byte page organization, self-timed erase/write cycles of 5 ms maximum, and block write protection capabilities.

Memory IC Feature Summary

• Supports serial communication via a standard SPI-compatible interface requiring only clock, data in, and data out lines.
• Includes hardware write-protect functionality controlled by a dedicated pin and status register bits for array security.
• Features a hold input that allows suspension of serial transmission without resetting the communication sequence.

Memory IC Applications

• Data storage for microcontroller systems requiring non-volatile memory
• Configuration parameter retention in embedded devices
• Calibration data storage for sensor interfaces

Memory IC Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging and 'SN' denotes the SOIC package. Confirm the temperature grade 'I' corresponds to the industrial range of -40°C to +85°C. Ensure the datasheet revision matches the required specifications as this device is marked not recommended for new designs.

Memory IC Selection Notes

Select this component when a low-pin-count serial EEPROM is required for space-constrained designs. Consider the 1.8V minimum operating voltage for compatibility with low-voltage logic families. Evaluate the 1 MHz maximum clock speed against system timing requirements compared to faster variants in the 25AA080A/B series.

Memory IC Part Context

This part belongs to the 25XX080 family of 8 Kbit SPI Serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 25LC080 and 25C080 models but differs in operating voltage ranges and clock frequencies. The 'T' suffix specifically identifies the tape and reel packaging format suitable for automated assembly processes.

Memory IC Replacement Considerations

Microchip recommends using the 25AA080A or 25AA080B series for new designs instead of this legacy part number.