AT25040-10PI

Memory IC Overview

The AT25040-10PI is a 4K-bit (512 x 8) serial EEPROM manufactured by Microchip Technology, housed in an 8-pin PDIP package. It operates with SPI compatibility at a maximum clock frequency of 2.1 MHz and supports supply voltages from 4.5V to 5.5V. The device features industrial temperature range operation from -40°C to +85°C, ensuring reliability for commercial applications requiring low power consumption.

Memory IC Feature Summary

• Supports SPI Modes 0 and 3 with hardware write protection via the WP pin
• Provides block write protection for one-quarter, one-half, or the entire memory array
• Features self-timed write cycles without requiring separate erase operations

Memory IC Applications

• Industrial control systems requiring non-volatile data storage
• Commercial devices optimized for low voltage and low power operation
• Microcontroller-based systems needing serial interface memory

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required voltage range and temperature grade. Confirm the package type corresponds to the design requirements. Ensure compliance with RoHS standards if applicable. Check datasheet revisions for any updates to electrical characteristics or pin configurations before finalizing procurement specifications.

Memory IC Selection Notes

Select this component when an 8-pin through-hole package is required for industrial environments. It is suitable for applications needing hardware write protection and block-level security. Verify that the system voltage falls within the specified 4.5V to 5.5V range. Consider page mode capabilities for efficient data writing operations.

Memory IC Part Context

This part belongs to the AT25040 series of serial EEPROMs designed for space-constrained applications. It offers high endurance and long data retention. The series includes variants with different voltage ratings and packages. It interfaces directly with standard SPI controllers.

Memory IC Replacement Considerations

AT25040-10PC: Same electrical specifications but in a Plastic Dual Inline Package (PDIP). AT25040N-10SI: Same electrical specifications but in a JEDEC Small Outline Integrated Circuit (SOIC) package.