25LC010A-E/SN

Overview

The Microchip Technology 25LC010A-E/SN is a 1 Kbit (128 x 8) Serial Electrically Erasable Programmable Read-Only Memory (EEPROM). It operates within a supply voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 10 MHz via an SPI-compatible serial bus. The device features automotive-grade reliability with an operating temperature range of -40°C to +125°C, housed in an 8-lead SOIC package.

Feature Summary

• Supports up to 16-byte page write operations for efficient data storage.
• Includes hardware write protection via the WP pin and software block protection settings.
• Features built-in power-on/off data protection circuitry to prevent inadvertent writes.

Applications

• Microcontroller configuration parameter storage
• Calibration constant retention
• Embedded system log caching

Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Automotive temperature grade (-40°C to +125°C) and 'SN' indicates the 8-lead SOIC package. Confirm RoHS compliance status and ensure the specific datasheet revision matches the required timing specifications for your SPI interface design.

Selection Notes

Select this component when an SPI interface is preferred over I2C or when higher speed operation up to 10 MHz is required. The Automotive grade ensures stability in high-temperature environments where Industrial grade parts might fail. Ensure the application does not require more than 1 Kbit of non-volatile storage capacity.

Part Context

This part belongs to the 25LC010A family of 1 Kbit SPI EEPROMs. The 'E' suffix denotes the extended automotive temperature range compared to the standard Industrial 'I' variant. It shares the same pinout and instruction set as other 25XX010A devices but differs in voltage and temperature specifications.

Replacement Considerations

The 25LC010A-I/SN serves as a direct functional substitute if the lower Industrial temperature range (-40°C to +85°C) is sufficient for the application environment.

FAQ

How does the HOLD pin function during communication?

The HOLD pin allows the host to pause serial communication without resetting the sequence. When pulled low while SCK is low, the SI, SCK, and SO pins enter a high-impedance state until HOLD is released.

What happens if a page write crosses a physical page boundary?

If a page write attempts to cross a boundary, the data wraps around to the beginning of the current page, overwriting existing data instead of proceeding to the next page.