25LC080D-E/P

Overview

The Microchip Technology 25LC080D-E/P is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM. It features a 32-byte page size and operates within a voltage range of 2.5 V to 5.5 V. The device supports a maximum clock frequency of 10 MHz at 5.5 V and utilizes a standard SPI-compatible interface with SCK, SI, SO, CS, HOLD, and WP pins. It is housed in an 8-lead PDIP package and rated for an extended temperature range from -40°C to +125°C.

Feature Summary

• Supports high-reliability operation with over 1 million erase/write cycles and data retention exceeding 200 years.
• Includes built-in write protection mechanisms such as a write enable latch, power-on/off data protection, and a dedicated hardware write-protect pin.
• Allows flexible block write protection to secure none, one-quarter, one-half, or the entire memory array.

Applications

• Data storage in industrial control systems requiring extended temperature stability
• Configuration parameter storage in automotive electronic modules
• Non-volatile memory for microcontroller-based embedded applications

Procurement Notes

Verify that the specific ordering suffix matches the required package type, temperature grade, and page size. Confirm that the 'E' designation aligns with the intended operating environment specifications. Ensure compatibility with existing system voltage levels and SPI bus configurations before finalizing procurement orders.

Selection Notes

Select this component when an 8 Kbit capacity with a 32-byte page size is required for high-reliability applications. The Automotive ('E') temperature rating makes it suitable for environments up to +125°C. The PDIP package facilitates through-hole mounting for prototyping or robust industrial assemblies.

Part Context

This part belongs to the 25LC080C/D family of 8 Kbit Serial EEPROMs manufactured by Microchip Technology. The 'D' variant specifically denotes a 32-byte page size, distinguishing it from the 'C' version which uses a 16-byte page. The 'E' suffix indicates an extended temperature range suitable for automotive and harsh industrial conditions.

Replacement Considerations

Direct substitutes include other 25LC080D variants with different packages, such as 25LC080D-E/SN or 25LC080D-E/ST, provided the physical footprint and pinout are compatible with the design.

FAQ

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

The primary difference is the page size; the 25LC080D supports a 32-byte page size, whereas the 25LC080C supports a 16-byte page size.

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

The WP pin works in conjunction with the WPEN bit in the STATUS register. When WPEN is high and WP is low, writes to nonvolatile bits in the STATUS register are disabled.