25AA160AT-I/ST

Memory IC Overview

The Microchip Technology 25AA160AT-I/ST is a 16 Kbit (2048 x 8-bit) Serial Electrically Erasable PROM. It utilizes an SPI-compatible serial bus for communication, supporting clock frequencies up to 10 MHz. The device operates within a supply voltage range of 1.8 V to 5.5 V and features a 16-byte page size. It is housed in an 8-lead TSSOP package and supports industrial temperature ranges from -40°C to +85°C.

Memory IC Feature Summary

• Supports high-speed SPI communication with clock frequencies up to 10 MHz
• Includes programmable block write protection for array security
• Features hardware data protection via power-on/off circuitry and a dedicated write-protect pin

Memory IC Applications

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

Memory IC Procurement Notes

Verify the specific suffix 'I/ST' confirms the Industrial temperature grade (-40°C to +85°C) and TSSOP-8 packaging. Ensure the 'A' variant designation matches the required 16-byte page size, as 'B' variants utilize 32-byte pages. Confirm RoHS compliance status through official manufacturer documentation prior to integration.

Memory IC Selection Notes

Select this component when low-voltage operation down to 1.8 V is required alongside standard SPI interfaces. The 16-byte page architecture suits applications requiring frequent small updates. Consider the TSSOP package dimensions against available PCB real estate and thermal dissipation requirements for the target environment.

Memory IC Part Context

This EEPROM belongs to the 25XX160A/B family, which shares identical electrical characteristics and instruction sets. Variants differ primarily by operating voltage thresholds ('AA' vs 'LC') and page buffer sizes ('A' vs 'B'). The 'ST' suffix specifically denotes the 8-lead Thin Shrink Small Outline Package.

Memory IC Replacement Considerations

Direct substitutes include other 25AA160A variants with different packages, such as 25AA160AT-I/SN (SOIC-8) or 25AA160AT-I/MS (MSOP-8). Cross-family replacements like 25LC160A require verification of minimum voltage compatibility.