AT25256-10CC

Memory IC Overview

The AT25256-10CC is a serial electrically-erasable programmable read-only memory (EEPROM) providing 262,144 bits of storage organized as 32,768 words of 8 bits each. It operates with a standard voltage supply range of 4.5V to 5.5V and supports a maximum clock frequency of 3 MHz via a Serial Peripheral Interface (SPI). The device utilizes an 8-lead Leadless Array Package (LAP) and is designed for commercial temperature operation ranging from 0°C to 70°C.

Memory IC Feature Summary

• Supports SPI Modes 0 and 3 for synchronous data transfer
• Includes hardware write protection via the WP pin
• Features self-timed write cycles without separate erase requirements
• Provides block write protection for specific memory segments

Memory IC Applications

• Industrial applications requiring low-power operation
• Commercial systems needing non-volatile data storage
• Microcontroller-based designs utilizing SPI interfaces

Memory IC Procurement Notes

Verify the package type corresponds to the 8-lead Leadless Array (LAP) configuration specified by the CC suffix. Confirm that the operating environment remains within the commercial temperature range of 0°C to 70°C. Ensure the system power supply adheres to the 4.5V to 5.5V requirement for this specific variant. Check for compatibility with SPI Mode 0 or 3 timing constraints during integration.

Memory IC Selection Notes

Select this component when a 256K-bit EEPROM capacity is required with a standard 5V logic interface. The 8-lead LAP package offers a space-saving solution compared to larger footprints. Consider the 3 MHz clock rate for bandwidth requirements. Verify that the commercial temperature range meets the application's environmental needs rather than industrial specifications.

Memory IC Part Context

This part belongs to the AT25128/256 family of serial EEPROMs manufactured originally by Atmel Corporation. The family shares common instruction sets and interface protocols across different capacities and package options. The AT25256 variant specifically doubles the storage density of the AT25128 model while maintaining identical operational characteristics and pin configurations.

Memory IC Replacement Considerations

AT25256C1-10CC

Memory IC FAQ

What is the function of the HOLD pin?

The HOLD pin suspends serial communication without resetting the sequence when pulled low while the SCK pin is low.

How is data protection implemented?

Protection is achieved through software instructions and a hardware Write Protect (WP) pin that inhibits writes to the status register and protected array segments.