25LC080DT-I/ST

Overview

The Microchip Technology 25LC080DT-I/ST is an 8 Kbit (1024 x 8) Serial Electrically Erasable PROM. It utilizes a SPI-compatible interface with a maximum clock frequency of 10 MHz. The device supports a 32-byte page write buffer and operates within a supply voltage range of 2.5 V to 5.5 V. It features industrial temperature ratings from -40°C to +85°C and is housed in an 8-lead TSSOP package.

Feature Summary

• Supports high-speed serial communication via a standard four-wire SPI bus interface.
• Includes programmable block write protection for selective array security.
• Integrates hardware data protection circuits against inadvertent writes during power transitions.
• Provides a hold function to pause serial communication without resetting the sequence.

Applications

• Data logging in industrial control systems
• Configuration storage for microcontroller-based devices
• Parameter retention in embedded sensor networks

Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature grade (-40°C to +85°C). Confirm the 'D' designation indicates the 32-byte page size capability. Ensure the 'ST' suffix matches the required TSSOP-8 package dimensions for your PCB layout. Cross-reference the datasheet revision to confirm pinout compatibility.

Selection Notes

Select this component when a non-volatile memory solution requires low power consumption and simple serial interfacing. The 8 Kbit capacity suits applications needing moderate data retention. The industrial temperature range makes it suitable for environments exceeding commercial limits. Verify that the system voltage aligns with the 2.5 V to 5.5 V operating range.

Part Context

This part belongs to the 25XX080C/D family of 8K SPI Serial EEPROMs. The 'LC' variant specifies a 2.5 V minimum supply voltage, distinguishing it from the 'AA' series which supports lower voltages. The 'D' version differentiates itself by offering a larger 32-byte page buffer compared to the 16-byte pages in the 'C' version.

Replacement Considerations

Compatible substitutes include other 8K SPI EEPROMs from Microchip such as the 25LC080C or 25AA080 series, provided the page size and voltage requirements match. Third-party equivalents must be verified for pin compatibility and electrical specifications.