25AA160DT-I/ST

Memory IC Overview

The Microchip Technology 25AA160DT-I/ST is a 16 Kbit Serial Electrically Erasable PROM featuring a 2048 x 8-bit organization and a 32-byte page size. It operates via an SPI-compatible serial bus with a maximum clock frequency of 10 MHz at VCC levels between 4.5V and 5.5V, scaling to 3 MHz at 1.8V to 2.5V. The device supports a supply voltage range of 1.8V to 5.5V and functions within an industrial temperature range of -40°C to +85°C. Packaged in an 8-lead TSSOP, it includes hardware write protection and self-timed erase/write cycles.

Memory IC Feature Summary

• Supports high-speed SPI communication with up to 10 MHz clock frequency
• Includes programmable block write protection for array security
• Features built-in power-on/off data protection circuitry
• Provides hold functionality to pause serial transmission without resetting the sequence

Memory IC Applications

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

Memory IC Procurement Notes

Verify the specific suffix 'DT' indicates the automotive temperature grade (E) or industrial grade (I) as defined by the manufacturer's current datasheet revision. Confirm the package type matches the required PCB footprint. Ensure the ordering quantity aligns with the manufacturer's standard packaging specifications. Cross-reference the exact part number against official distributor catalogs to confirm availability and compliance status.

Memory IC Selection Notes

Select this component when a 16 Kbit EEPROM with a 32-byte page size is required for industrial applications. Choose this variant over the 'C' version if larger page writes are needed to improve throughput. Ensure the system voltage supports the 1.8V minimum requirement. Verify that the TSSOP package dimensions fit the available board space constraints.

Memory IC Part Context

This device belongs to the 25XX160C/D family of 16 Kbit Serial EEPROMs from Microchip Technology. It shares architectural similarities with the 25LC160 series but differs in operating voltage ranges. The 'D' designation specifically denotes the 32-byte page architecture, distinguishing it from the 16-byte page 'C' variants within the same product line.

Memory IC Replacement Considerations

Public confirmed substitute part numbers include 25AA160C-I/ST for 16-byte page configurations and 25LC160B-I/ST for 2.5V minimum operation variants.