AT24C256-10PI

Memory IC Overview

The AT24C256-10PI is a 256Kb (32,768 x 8) serial electrically erasable and programmable read-only memory (EEPROM) manufactured by Microchip Technology. It features an I2C-compatible 2-wire serial interface with a maximum clock frequency of 1 MHz at standard voltage operation (4.5V to 5.5V). The device supports page write modes up to 64 bytes and includes hardware and software data protection via a dedicated Write Protect pin. It is housed in an 8-pin Plastic Dual Inline Package (PDIP) and operates within the industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports bidirectional data transfer over a 2-wire serial bus with Schmitt trigger filtered inputs for noise suppression
• Provides hardware and software data protection through a dedicated Write Protect pin that inhibits all write operations when tied high
• Enables efficient data storage using a 64-byte page write mode that allows partial page writes

Memory IC Applications

• Industrial systems requiring low power and low voltage operation
• Commercial applications needing non-volatile data retention
• Embedded devices utilizing I2C communication protocols

Memory IC Procurement Notes

Verify the specific ordering code suffix against official manufacturer documentation to confirm package type and operating temperature range. Ensure the selected variant matches the required voltage specifications for your system design. Cross-reference datasheet revision numbers to validate feature availability and electrical characteristics before finalizing procurement decisions.

Memory IC Selection Notes

Select this component for designs requiring robust non-volatile storage with simple serial connectivity. Consider the 1 MHz clock speed for high-throughput applications within the specified voltage limits. Evaluate the industrial temperature rating if the deployment environment experiences significant thermal fluctuations compared to commercial grade alternatives.

Memory IC Part Context

This EEPROM belongs to the AT24C128/256 family, which provides scalable memory densities for various embedded needs. The series is optimized for applications where space-saving packages and low power consumption are critical. It shares common interface protocols and organizational structures with other members of the family, facilitating modular design approaches.

Memory IC Replacement Considerations

AT24C256-10PC

Memory IC FAQ

How does the Write Protect pin function?

When the WP pin is tied high to VCC, all write operations to the memory are inhibited. If left unconnected, it is internally pulled down to GND, allowing normal write operations.

What is the maximum clock frequency for this device?

The maximum clock frequency is 1 MHz when operating at standard voltage levels between 4.5V and 5.5V.