25AA160CT-I/ST

Memory IC Overview

The Microchip Technology 25AA160CT-I/ST is a 16 Kbit Serial Electrically Erasable PROM featuring a 2048 x 8-bit organization. It operates on an SPI-compatible serial bus with a maximum clock frequency of 10 MHz at VCC ≥ 4.5V, scaling to 3 MHz at 1.8V ≤ VCC < 2.5V. The device supports a supply voltage range of 1.8V to 5.5V and utilizes a 16-byte page size. It is housed in an 8-lead TSSOP package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports sequential read operations with automatic address pointer incrementation across the memory array.
• Includes built-in write protection mechanisms such as a write enable latch, power-on/off data protection, and a dedicated write-protect pin.
• Features a hold input that allows suspension of serial communication without resetting the sequence or requiring retransmission.

Memory IC Applications

• Data logging for non-volatile storage in microcontroller systems
• Configuration parameter storage in embedded devices
• Calibration data retention in industrial instrumentation

Memory IC Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing components. Confirm the 'I' designation aligns with required industrial temperature specifications. Ensure the 'C' variant matches the necessary 16-byte page size requirement for your application design. Cross-reference the datasheet revision to confirm electrical characteristics remain consistent with current production standards.

Memory IC Selection Notes

Select this component for applications requiring low-voltage operation down to 1.8V with SPI interface compatibility. Consider the 16-byte page size limitation for write operations compared to the 32-byte variants. Evaluate the 10 MHz maximum clock speed against system timing requirements. Verify that the TSSOP package dimensions fit the available PCB real estate constraints.

Memory IC Part Context

This part belongs to the 25XX160C/D family of 16 Kbit Serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 25LC160 series but differs in minimum operating voltage. The 'C' designation specifically denotes the 16-byte page buffer configuration, distinguishing it from the 'D' version which offers 32-byte pages.

Memory IC Replacement Considerations

The 25AA160DT-I/ST serves as a direct functional substitute offering identical specifications with a 32-byte page size instead of 16 bytes. Designers must verify software compatibility regarding page boundary handling when migrating between these variants.