25LC080B-I/P

Overview

The Microchip Technology 25LC080B-I/P is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM. It features a 32-byte page size and operates via a standard SPI-compatible serial bus with clock frequencies up to 10 MHz. The device supports a supply voltage range of 2.5 V to 5.5 V and functions within an industrial temperature range of -40°C to +85°C. It is housed in an 8-lead Plastic Dual In-Line (PDIP) package.

Feature Summary

• Supports 32-byte page write operations for efficient data storage
• Includes hardware write protection via dedicated WP pin and software block protection
• Features self-timed erase and write cycles with automatic latch reset
• Provides high reliability with over one million erase/write cycle endurance

Applications

• Microcontroller system configuration storage
• Data logging applications requiring non-volatile memory
• Industrial control parameter retention

Procurement Notes

Verify the specific 'B' suffix indicates the 32-byte page size variant, distinct from the 'A' version's 16-byte pages. Confirm the 'I' designation matches the required -40°C to +85°C industrial operating temperature range. Ensure the PDIP package aligns with through-hole assembly requirements. Cross-reference the datasheet revision to confirm electrical characteristics remain consistent with current manufacturing standards.

Selection Notes

Select this component when a 32-byte page buffer is preferred over the 16-byte alternative. It is suitable for designs requiring robust hardware write protection mechanisms alongside standard SPI interface compatibility. Consider the PDIP package only if through-hole mounting is strictly necessary for mechanical stability or legacy board layouts.

Part Context

This part belongs to the 25XX080A/B family of 8 Kbit Serial EEPROMs. The 'LC' prefix denotes a 2.5 V to 5.5 V supply voltage range, distinguishing it from lower voltage variants. The 'B' suffix specifically identifies the 32-byte page architecture, differentiating it from the 16-byte 'A' series devices within the same product line.

Replacement Considerations

• 25LC080A-I/P

FAQ

What is the difference between the 25LC080A and 25LC080B page sizes?

The 25LC080B supports a 32-byte page size, whereas the 25LC080A is limited to a 16-byte page size.

How does the HOLD pin function during communication?

Pulling the HOLD pin low pauses serial communication without resetting the sequence, allowing the host to service higher priority interrupts while maintaining the current address pointer.