AT25HP256-10CI-2.7

Memory IC Overview

The AT25HP256-10CI-2.7 is a serial electrically erasable programmable read-only memory (EEPROM) with a capacity of 262,144 bits organized as 32,768 words of 8 bits each. It operates within a supply voltage range of 2.7V to 5.5V and supports SPI clock frequencies up to 10 MHz at 5V and 5 MHz at 2.7V. The device features block write protection for the top quarter, half, or entire array, alongside hardware and software data protection mechanisms. It includes a HOLD pin to suspend serial communication without resetting the sequence and supports page write operations of up to 128 bytes.

Memory IC Feature Summary

• Supports SPI Modes 0 and 3 with dedicated HOLD and WP pins for communication control and data protection
• Provides hardware and software write protection via status register configuration and physical pin states
• Enables self-timed programming cycles without requiring separate erase operations prior to writing

Memory IC Applications

• Industrial and commercial applications requiring high-speed low-power operation
• Systems needing non-volatile storage for configuration parameters or calibration data
• Embedded controllers utilizing synchronous serial peripheral interfaces

Memory IC Procurement Notes

Verify the specific ordering suffix matches the required package type and operating temperature range. Confirm that the -2.7 designation aligns with the intended supply voltage environment. Ensure compatibility with existing SPI controller configurations regarding mode selection and pin assignments before finalizing procurement.

Memory IC Selection Notes

Select this component when a 256K-bit EEPROM is required with industrial temperature ratings. Consider the availability of multiple package options including PDIP, SOIC, and Leadless Array. Evaluate the need for specific block protection levels and the utility of the HOLD function for complex bus architectures.

Memory IC Part Context

This part belongs to the AT25HP256/512 family of serial EEPROMs manufactured by Microchip Technology. The family is designed for applications demanding high reliability and endurance. It shares architectural similarities with other serial EEPROMs but offers specific performance characteristics tailored for robust industrial environments.

Memory IC Replacement Considerations

Direct substitutes include other parts from the AT25HP256/512 series with compatible voltage and package specifications. Verify functional equivalence regarding instruction sets and timing parameters when considering alternative manufacturers.