25LC080D-H/SN

Overview

The Microchip Technology 25LC080D-H/SN is an 8K-bit (1,024 x 8) Serial Electrically Erasable PROM (EEPROM) housed in an 8-lead SOIC package. It supports the SPI compatible serial bus architecture with a maximum clock frequency of 5 MHz and operates within a voltage range of 2.5V to 5.5V. The device features a 32-byte page size and supports extended temperature operation from -40°C to +150°C.

Feature Summary

• Supports byte-level and page-level write operations for efficient data management.
• Includes built-in hardware write protection via the WP pin and software block protection bits.
• Features power-on/off data protection circuitry to prevent inadvertent writes during power transitions.

Applications

• Industrial control systems requiring high-temperature reliability
• Automotive electronics applications
• Data logging devices

Procurement Notes

Verify that the specific suffix 'H' corresponds to the extended temperature grade (-40°C to +150°C) and 'SN' indicates the 8-lead SOIC package. Confirm RoHS compliance status and ensure the ordering quantity matches standard packaging configurations provided by the manufacturer or authorized distributors.

Selection Notes

Select this component when an SPI interface EEPROM is required for environments exceeding standard industrial temperature limits. The 32-byte page size offers a balance between write speed and memory density. Ensure the system design accommodates the 5 MHz maximum clock speed at the intended supply voltage.

Part Context

This part belongs to the 25LCXXX family of mid-density serial EEPROMs from Microchip Technology. It shares architectural similarities with other members like the 25LC080C and 25LC160D but is distinguished by its extended temperature rating and specific page size configuration.

Replacement Considerations

Direct substitutes include the 25LC080C-H/SN, which shares the same package and temperature grade but has a 16-byte page size instead of 32 bytes. Other family members may require firmware adjustments due to differing page sizes or density levels.

FAQ

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

The primary difference is the page size; the 25LC080D supports a 32-byte page size, whereas the 25LC080C supports a 16-byte page size. Both share the same density, package, and temperature ratings.

How does the HOLD pin function during communication?

The HOLD pin allows the user to pause serial communication without resetting the sequence. When pulled low while SCK is low, it places the SI, SCK, and SO pins in a high-impedance state until the pin is released.