25LC080BT-I/SN

Overview

The Microchip Technology 25LC080BT-I/SN is an 8 Kbit Serial Electrically Erasable PROM featuring a 1024 x 8-bit organization. It utilizes a standard SPI-compatible serial bus with SCK, SI, SO, and CS signals for communication. The device supports a maximum clock frequency of 10 MHz and operates within a supply voltage range of 2.5V to 5.5V. It includes a 32-byte page write buffer and self-timed erase/write cycles with a maximum duration of 5 ms. The component is housed in an 8-lead SOIC package and is rated for industrial temperature operation from -40°C to +85°C.

Feature Summary

• Supports 32-byte page writes for efficient data storage operations
• Includes programmable block write protection for array security
• Features built-in power-on/off data protection circuitry
• Provides hold functionality to pause serial communication without resetting the sequence

Applications

• Microcontroller system data logging
• Configuration parameter storage
• Calibration value retention
• Small-scale non-volatile memory backup

Procurement Notes

Verify that the specific suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'SN' denotes the 8-lead SOIC package. Confirm the 'B' version designation indicates the 32-byte page size rather than the 16-byte variant. Ensure the datasheet revision matches the required specifications for your design implementation.

Selection Notes

Select this part when a low-pin-count EEPROM with SPI interface is required for industrial environments. The 32-byte page size offers higher throughput compared to 16-byte variants. Verify that the host microcontroller can support the necessary SPI modes and voltage levels. Consider the physical dimensions of the SOIC-8 package against available PCB space constraints.

Part Context

This component belongs to the 25LC080 family of 8 Kbit Serial EEPROMs manufactured by Microchip Technology. The family shares common architectural features but varies in page size ('A' vs 'B' versions), operating voltage ranges (AA vs LC series), and package options. The 'BT' suffix typically indicates a tape and reel packaging format.

Replacement Considerations

Direct substitutes include other 25LC080 variants such as 25LC080A or 25LC080C, provided the page size and temperature ratings align with the application requirements. Cross-referencing pinouts and electrical characteristics is essential when substituting with devices from different manufacturers.