25LC080T-I/SN

Overview

The Microchip Technology 25LC080T-I/SN is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM. It utilizes a SPI-compatible serial bus interface with SCK, SI, SO, CS, HOLD, and WP pins. The device operates within a voltage range of 2.5 V to 5.5 V and supports a maximum clock frequency of 2 MHz at this supply level. It features a 16-byte page write capability and self-timed erase/write cycles with a maximum duration of 5 ms. The component is housed in an 8-lead Plastic Small Outline (SN) package and is rated for industrial temperatures from -40°C to +85°C.

Feature Summary

• Supports block-level write protection allowing selection of none, one-quarter, one-half, or the entire array.
• Includes built-in power-on/off data protection circuitry and a write enable latch mechanism.
• Features a hold pin that suspends serial communication without resetting the sequence.

Applications

• Data storage for microcontroller systems via SPI port
• Configuration parameter retention
• Calibration value storage

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging and 'SN' denotes the narrow SOIC package. Confirm the 'I' suffix corresponds to the industrial temperature range (-40°C to +85°C). Ensure the datasheet DS21230E is referenced as the authoritative source for electrical characteristics and timing parameters.

Selection Notes

Select this component for applications requiring low-power CMOS technology and non-volatile memory access through a standard SPI interface. Consider the 2.5 V minimum operating voltage when designing power supplies. Evaluate the 1 M cycle endurance limit against application write frequencies. Note that the device is not recommended for new designs per the datasheet.

Part Context

This part belongs to the 25AA080/25LC080/25C080 family of 8 Kbit Serial EEPROMs manufactured by Microchip Technology. These devices are designed to interface directly with popular microcontroller families. The 25LC080 variant specifically targets a 2.5 V to 5.5 V supply range, distinguishing it from the 1.8 V capable 25AA080.

Replacement Considerations

Datasheet explicitly recommends using 25AA080A/B or 25LC080A/B instead of this older generation device for new designs.