25LC080CT-I/MS

Overview

The Microchip Technology 25LC080CT-I/MS is an 8 Kbit Serial Electrically Erasable PROM featuring a 1024 x 8-bit organization. It operates via a standard SPI compatible serial bus with a maximum clock frequency of 10 MHz. The device supports a supply voltage range of 1.8V to 5.5V and includes a 16-byte page size. It is housed in an 8-lead MSOP package and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Supports high-speed synchronous serial communication via a four-wire SPI interface with hold functionality for interrupt servicing.
• Includes built-in write protection mechanisms such as a write enable latch, power-on data protection, and programmable block protection.
• Features self-timed erase and write cycles with hardware-based power-on/off data protection circuitry.

Applications

• Microcontroller system configuration storage
• Calibration parameter persistence
• Data logging applications

Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature grade (-40°C to +85°C) and 'MSOP' denotes the 8-lead thin shrink small outline package. Confirm the 'C' version designation aligns with the required 16-byte page size rather than the 32-byte 'D' version. Ensure the ordering suffix matches the exact tape and reel packaging format indicated by 'CT'.

Selection Notes

Select this component when a low-pin-count non-volatile memory solution is required for systems utilizing SPI interfaces. The 8 Kbit capacity is suitable for storing small datasets or configuration parameters. Consider the 1.8V minimum operating voltage if the design requires compatibility with lower voltage logic levels compared to the 2.5V requirement of the LC automotive variant.

Part Context

This part belongs to the 25LC080 family of 8 Kbit Serial EEPROMs manufactured by Microchip Technology. The 'C' version specifically utilizes a 16-byte page buffer, distinguishing it from the 'D' version which offers a 32-byte page size. The 'I' suffix indicates compliance with industrial temperature standards, while 'MSOP' specifies the physical package type.

Replacement Considerations

The datasheet lists the 25AA080C/D series as functionally similar devices within the same documentation scope. Verify that the alternative part number matches the required voltage range (1.8V vs 2.5V minimum) and package dimensions before substitution.

FAQ

How does the HOLD pin function during serial communication?

The HOLD pin allows the host to pause serial communication without resetting the sequence. When pulled low while SCK is low, the SO pin goes high-impedance and input transitions are ignored until HOLD is released.

What is the difference between the C and D versions of this device?

The primary difference is the page size. The 'C' version (like this part) has a 16-byte page size, whereas the 'D' version features a 32-byte page size.