25AA080D-I/WF16K

Memory IC Overview

The Microchip Technology 25AA080D-I/WF16K is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM. It utilizes a SPI-compatible serial bus with SCK, SI, SO, and CS signals. The device supports a maximum clock frequency of 10 MHz at VCC ≥ 4.5V. Operating voltage ranges from 1.8V to 5.5V for Industrial temperature grades (-40°C to +85°C). It features a 32-byte page size, self-timed write cycles up to 5 ms, and hardware write protection via the WP pin. Endurance exceeds 1 million erase/write cycles with data retention over 200 years.

Memory IC Feature Summary

• Supports SPI-compatible serial communication with hold functionality for bus pausing
• Includes programmable block write protection and power-on data protection circuitry
• Features low-power CMOS technology with standby current as low as 1 µA
• Provides high reliability with robust ESD protection exceeding 4000V

Memory IC Applications

• Microcontroller system data storage
• Configuration parameter retention
• Calibration value storage in industrial devices

Memory IC Procurement Notes

Verify the specific suffix WF16K against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure the Industrial temperature grade matches application requirements. Confirm RoHS compliance status through current datasheets. Validate supply chain authenticity directly with authorized distributors.

Memory IC Selection Notes

Select this component for applications requiring low-voltage operation down to 1.8V and SPI interface compatibility. The 32-byte page size offers efficient sequential writing compared to smaller page variants. Consider the Industrial temperature range suitability for environments between -40°C and +85°C. Evaluate power consumption needs against the specified standby and active currents.

Memory IC Part Context

This part belongs to the 25AA080C/D series of 8K SPI Bus Serial EEPROMs. It shares architectural similarities with the 25LC080D but differs in minimum operating voltage. The 'D' designation indicates a 32-byte page buffer. The 'I' suffix denotes the Industrial temperature range. It is designed for direct interfacing with popular microcontroller families.

Memory IC Replacement Considerations

25AA080D-I/ST serves as a pin-compatible alternative in TSSOP-8 packaging. 25AA080D-I/MS is available in MSOP-8. Verify electrical characteristics and package dimensions before substitution.