AT24C256W-10SI-2.7

Memory IC Overview

The AT24C256W-10SI-2.7 is a 256Kb (32,768 x 8) serial electrically erasable and programmable read-only memory (EEPROM). It features a 2-wire serial interface compatible with I2C protocols. The device operates within a supply voltage range of 2.7V to 5.5V. It supports clock frequencies up to 1 MHz at 5V, 400 kHz at 2.7V, and 100 kHz at 1.8V. The component includes hardware and software data protection via a write protect pin.

Memory IC Feature Summary

• Supports bidirectional data transfer using a standard two-wire serial interface protocol.
• Includes Schmitt triggers and filtered inputs designed for noise suppression.
• Provides hardware and software data protection through a dedicated write protect pin.
• Capable of page write operations allowing partial page writes.

Memory IC Applications

• Industrial applications requiring low power operation
• Commercial applications utilizing low voltage systems
• Systems requiring non-volatile data storage on shared buses

Memory IC Procurement Notes

Verify the specific ordering suffix against official Microchip Technology documentation to confirm package type and temperature range. Confirm that the -2.7 suffix corresponds to the required 2.7V to 5.5V operating voltage range. Ensure compatibility with existing system bus configurations before procurement.

Memory IC Selection Notes

Select this component when a 256Kb capacity is required with a 2-wire interface. Consider the industrial temperature range (-40°C to +85°C) for environmental suitability. Verify that the 8-lead SOIC package fits the available board space. Check if the 1 million write cycle endurance meets long-term reliability requirements.

Memory IC Part Context

This part belongs to the AT24C128/256 family of 2-wire serial EEPROMs manufactured by Microchip Technology. The family offers varying capacities including 128Kb and 256Kb options. These devices are optimized for applications where low power consumption and low voltage operation are essential design constraints.

Memory IC Replacement Considerations

AT24C256N-10SI-2.7

Memory IC FAQ

How many devices can share a common 2-wire bus?

Up to four devices from the AT24C128/256 family can be addressed on a single bus system using hardwired address pins.

What is the maximum write cycle time?

The self-timed write cycle has a maximum duration of 5 ms.