25AA160B-I/MS

Memory IC Overview

The Microchip Technology 25AA160B-I/MS 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 32-byte page size. The device operates within a supply voltage range of 1.8 V to 5.5 V and supports industrial temperatures from -40 °C to +85 °C. It is housed in an 8-lead MSOP package.

Memory IC Feature Summary

• Supports high-speed serial communication via a standard SPI bus with up to 10 MHz clock frequency.
• Includes hardware write protection mechanisms such as block protection, power-on data protection, and a dedicated write-protect pin.
• Features a hold function that allows the host to pause serial communication without resetting the sequence.

Memory IC Applications

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

Memory IC Procurement Notes

Verify the specific suffix 'I/MS' corresponds to the Industrial temperature range (-40°C to +85°C) and the 8-lead MSOP package. Confirm RoHS compliance status through official manufacturer documentation prior to finalizing procurement specifications.

Memory IC Selection Notes

Select this component when a low-voltage EEPROM with a 32-byte page buffer is required. Ensure the application environment remains within the specified -40 °C to +85 °C operating range. Verify that the system voltage falls between 1.8 V and 5.5 V to guarantee proper operation.

Memory IC Part Context

This part belongs to the 25AA160A/B series of 16 Kbit Serial EEPROMs manufactured by Microchip Technology. The 'B' designation indicates a 32-byte page size, distinguishing it from the 'A' version which utilizes a 16-byte page size. The 'I' suffix denotes the industrial temperature grade.

Memory IC Replacement Considerations

The 25AA160AT-I/MS serves as a reel-packaged alternative offering identical electrical characteristics and functionality.

Memory IC FAQ

How does the HOLD pin function during serial communication?

The HOLD pin suspends transmission to the device while maintaining the current serial sequence state. Transitions on SI, SCK, and SO are ignored during this pause, allowing the host to service higher priority interrupts.

What is the purpose of the Write Enable Latch?

The Write Enable Latch must be set before any write operation can be completed internally. It is reset upon power-up, after a successful write, or via the WRDI instruction to prevent inadvertent writes.