25LC080D-E/SN

Overview

The Microchip Technology 25LC080D-E/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 at VCC levels between 4.5V and 5.5V. Operating voltage ranges from 2.5V to 5.5V. It includes a 32-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 SOIC package and operates within an extended temperature range of -40°C to +125°C.

Feature Summary

• Supports high-speed synchronous serial communication via a four-wire SPI compatible interface.
• Includes programmable block write protection allowing selective array security.
• Features built-in power-on/off data protection and a write enable latch mechanism.
• Provides a hold function to pause serial transmission without resetting the sequence.

Applications

• Data storage in microcontroller-based systems requiring non-volatile memory
• Configuration parameter retention in industrial control devices
• Calibration data storage in automotive electronic modules

Procurement Notes

Verify the specific suffix 'E' indicates the Automotive temperature grade (-40°C to +125°C) and 'SN' denotes the 8-lead SOIC package. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure the ordering part number matches the required page size (32 bytes for the 'D' variant). Check for any recent PCN notifications regarding assembly or packaging changes.

Selection Notes

Select this component when an SPI interface is required for non-volatile storage in environments demanding extended temperature operation. The 'D' suffix specifies a 32-byte page size, which differs from the 16-byte 'C' version. Ensure the system voltage remains within the 2.5V to 5.5V range to maintain specified performance characteristics and current consumption limits.

Part Context

This device belongs to the 25XX080C/D family of 8 Kbit Serial EEPROMs manufactured by Microchip Technology. The family shares common architectural features but varies in voltage ranges, page sizes, and temperature grades. The 25LC080D variant specifically targets applications requiring robust performance across a wide operating temperature spectrum while maintaining compatibility with standard SPI protocols.

Replacement Considerations

Direct substitutes include other 25LC080 variants with matching package and temperature ratings, such as 25LC080D-I/SN for industrial temperature ranges. Cross-brand replacements require verification of pin compatibility, voltage levels, and command set adherence to ensure functional equivalence in existing designs.

FAQ

What is the difference between the 25LC080C and 25LC080D versions?

The primary difference is the page size; the 25LC080C has a 16-byte page size, while the 25LC080D has a 32-byte page size. Both share the same 8 Kbit capacity and SPI interface.

How does the HOLD pin function during serial communication?

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