25LC080BT-I/MSG

Overview

The Microchip Technology 25LC080BT-I/MSG is an 8 Kbit Serial Electrically Erasable PROM featuring a 1024 x 8-bit organization. It utilizes a standard SPI-compatible serial bus interface with a maximum clock frequency of 10 MHz. The device supports a supply voltage range of 2.5 V to 5.5 V and operates within an industrial temperature range of -40°C to +85°C. It is housed in an 8-lead MSOP package and includes a 32-byte page write buffer.

Feature Summary

• Supports high-speed SPI communication with up to 10 MHz clock frequency
• Features programmable block write protection for array security
• Includes hardware data protection circuitry against inadvertent writes
• Provides hold functionality to pause serial sequences without resetting

Applications

• Microcontroller system data storage
• Configuration parameter retention
• Calibration value memory
• Device identification storage

Procurement Notes

Verify the specific suffix 'I/MSG' matches the required industrial temperature grade (-40°C to +85°C) and MSOP package type. Confirm that the 'B' version designation aligns with the 32-byte page size requirement for your application software, as this differs from the 'A' version. Ensure compatibility with the 2.5V to 5.5V supply voltage range.

Selection Notes

Select this component when a compact surface-mount EEPROM with SPI interface is required. The 'B' variant offers a larger 32-byte page compared to the 16-byte 'A' version, potentially improving write efficiency. Verify that the host microcontroller supports the necessary SPI modes and that the system voltage falls within the specified operating range.

Part Context

This part belongs to the 25LC080 family of 8 Kbit Serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with other devices in the 25XX080 series but is distinguished by its specific voltage range, temperature rating, and physical packaging configuration suitable for space-constrained designs.

Replacement Considerations

Direct replacements include other 25LC080 variants such as 25LC080A or 25LC080D, provided the page size difference (16 bytes vs 32 bytes) is accommodated in the firmware. Alternative packages like SOIC or TSSOP may be used if pinout compatibility is maintained.