25C080-E/P

Memory IC Overview

The Microchip Technology 25C080-E/P is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM featuring SPI-compatible communication. It operates within a voltage range of 4.5 V to 5.5 V with a maximum clock frequency of 3 MHz. The device supports industrial and automotive temperature ranges (-40°C to +125°C), offers 1 M cycle endurance, and provides data retention exceeding 200 years. It utilizes low-power CMOS technology with typical standby current of 500 nA.

Memory IC Feature Summary

• Supports serial peripheral interface (SPI) bus communication with separate data in and out lines.
• Includes built-in write protection mechanisms such as power-on/off data protection circuitry and a write-protect pin.
• Features self-timed erase and write cycles with block write protection capabilities for array segments.

Memory IC Applications

• Microcontroller system memory storage
• Industrial control applications requiring extended temperature operation
• Automotive electronic systems

Memory IC Procurement Notes

Verify the component status before procurement as this part is marked Not Recommended for New Designs (NRND). Confirm that the specific ordering suffix matches the required package type and temperature grade. Ensure compatibility with existing designs since newer alternatives like the 25AA080A/B or 25LC080A/B are recommended for new projects.

Memory IC Selection Notes

Select this component only if the design requires the specific 4.5 V to 5.5 V operating voltage range and the PDIP-8 through-hole package. Verify that the 3 MHz maximum clock frequency meets the system timing requirements. Consider the NRND status when planning long-term production lifecycles.

Memory IC Part Context

This device belongs to the 25XX080 family of 8 Kbit Serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 25AA080 and 25LC080 but is distinguished by its higher minimum supply voltage requirement and specific automotive-grade temperature rating.

Memory IC Replacement Considerations

Microchip recommends using the 25AA080A/B or 25LC080A/B series for new designs instead of this obsolete part number.

Memory IC FAQ

What is the function of the HOLD pin?

The HOLD pin suspends transmission to the device during a serial sequence without resetting the sequence, allowing the host to service higher priority interrupts.

How does the Write-Protect (WP) pin function?

When WP is low and the WPEN bit is high, writing to nonvolatile bits in the Status register is disabled. When WP is high, all functions operate normally.