25LC080CT-I/SN

Overview

The Microchip Technology 25LC080CT-I/SN is an 8 Kbit Serial Electrically Erasable PROM featuring a 1024 x 8-bit organization. It operates via a SPI-compatible serial bus with a maximum clock frequency of 10 MHz at VCC levels between 4.5V and 5.5V. The device supports a supply voltage range of 2.5V to 5.5V and utilizes a 16-byte page write architecture. It is housed in an 8-lead SOIC package and rated for industrial temperature applications spanning from -40°C to +85°C.

Feature Summary

• Supports high-speed SPI communication with a maximum clock frequency of 10 MHz
• Includes programmable block write protection for selective array security
• Features built-in power-on/off data protection circuitry and a write enable latch
• Provides a hold function to pause serial transmission without resetting the sequence

Applications

• Data storage in microcontroller-based systems
• Configuration parameter retention
• Calibration value archiving
• Device identification information storage

Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature grade (-40°C to +85°C) and 'SN' denotes the 8-lead SOIC package. Confirm the 'C' variant designation aligns with the required 16-byte page size, as opposed to the 'D' variant which uses 32-byte pages. Ensure the ordering suffix matches the exact tape-and-reel packaging format indicated by 'CT'.

Selection Notes

Select this component when an 8 Kbit non-volatile memory solution is required with SPI interface compatibility. It is suitable for designs needing robust write protection features and high endurance. Consider the 2.5V to 5.5V operating range for flexibility in various logic families. Verify that the industrial temperature rating meets the environmental requirements of the target application.

Part Context

This part belongs to the 25XX080C/D family of 8 Kbit Serial EEPROMs manufactured by Microchip Technology. The family includes variants with different voltage ranges, such as the 25AA080 series supporting 1.8V operation. The 'C' designation specifically indicates devices with a 16-byte page size, distinguishing them from the 'D' series which offers 32-byte pages for higher throughput.

Replacement Considerations

25LC080C-I/SN

FAQ

How does the HOLD pin function during serial communication?

The HOLD pin allows the user to suspend transmission mid-sequence without retransmitting data. When pulled low while SCK is low, it pauses communication and tri-states the SO line. Operation resumes when the pin is brought high.

What is the difference between the 25LC080C and 25LC080D page sizes?

The 25LC080C variant supports a 16-byte page size, whereas the 25LC080D variant supports a 32-byte page size. Page write operations are limited to writing bytes within a single physical page boundary.