25LC010AT-I/ST

Overview

The Microchip Technology 25LC010AT-I/ST 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 at voltages between 4.5V and 5.5V. The device utilizes an SPI-compatible serial bus for communication and features a write page mode capable of handling up to 16 bytes per cycle. Internal write cycles are self-timed with a maximum duration of 5 ms.

Feature Summary

• Supports sequential read operations and page write modes for efficient data transfer.
• Includes built-in hardware write protection via the WP pin and software block protection settings.
• Features power-on/off data protection circuitry and a write enable latch to prevent inadvertent writes.

Applications

• Microcontroller system configuration storage
• Calibration parameter retention
• Data logging in industrial environments

Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature grade (-40°C to +85°C) and 'ST' indicates the TSSOP package. Confirm the 'T' suffix denotes tape and reel packaging. Ensure the specific part number matches the required voltage and speed specifications for your application design.

Selection Notes

Select this component when a 1 Kbit non-volatile memory solution is required with SPI interface compatibility. It is suitable for applications needing low-power operation and robust data retention. Consider the TSSOP package constraints and verify that the 10 MHz clock speed meets the system timing requirements under the operating voltage conditions.

Part Context

This device belongs to the 25LC010A family of 1 Kbit Serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 25AA010A but differs in minimum operating voltage, supporting a lower limit of 2.5V compared to 1.8V for the AA series. The I/ST designation specifies the industrial temperature range and surface-mount TSSOP packaging.

Replacement Considerations

Direct replacements include other 25LC010A variants with different packages such as 25LC010AT-I/SN or 25LC010AT-I/MNY. Cross-family substitutes like the 25LC020A offer higher capacity but maintain compatible instruction sets.