25AA160A-I/P

Memory IC Overview

The Microchip Technology 25AA160A-I/P is a 16 Kbit (2048 x 8-bit) Serial Electrically Erasable PROM. It features an SPI-compatible interface with a maximum clock frequency of 10 MHz and a 50 ns access time. The device operates within a supply voltage range of 1.8 V to 5.5 V and supports industrial temperature ranges from -40 °C to +85 °C. It utilizes a 16-byte page write architecture and is housed in an 8-lead PDIP package.

Memory IC Feature Summary

• Supports high-speed SPI communication up to 10 MHz
• Includes hardware write protection via dedicated pin and status register bits
• Features self-timed erase and write cycles with internal timing control
• Provides data retention exceeding 200 years and high ESD protection

Memory IC Applications

• Microcontroller system data storage
• Configuration parameter logging
• Calibration value retention
• Device identification storage

Memory IC Procurement Notes

Verify the specific suffix 'I' for industrial temperature range and '/P' for PDIP packaging against project requirements. Confirm that the 1.8V minimum operating voltage aligns with the target system's power rails. Ensure the 16-byte page size constraint is accounted for in the software driver design to prevent data corruption during writes crossing page boundaries.

Memory IC Selection Notes

Select this component when a low-pin-count serial memory solution is required for non-volatile data storage. The 25AA160A variant is suitable for systems requiring operation down to 1.8V, distinguishing it from the 2.5V minimum 25LC160A series. Consider the PDIP package only if through-hole mounting is necessary for mechanical stability or prototyping purposes.

Memory IC Part Context

This part belongs to the 25XX160A/B family of 16 Kbit Serial EEPROMs manufactured by Microchip Technology. The 'AA' designation indicates support for 1.8V operation, while the 'A' suffix specifies a 16-byte page size. It serves as a direct replacement for legacy parallel EEPROMs where space and pin count are constrained.

Memory IC Replacement Considerations

The 25AA160B-I/P is a compatible alternative offering a 32-byte page size instead of 16 bytes. The 25LC160A-I/P provides similar functionality but requires a minimum supply voltage of 2.5V.