25LC080B-E/P

Overview

The Microchip Technology 25LC080B-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 supply voltage range of 2.5 V to 5.5 V. The device supports a maximum clock frequency of 10 MHz via a standard SPI-compatible serial bus. It is housed in an 8-lead PDIP package and is rated for an industrial temperature range of -40°C to +125°C.

Feature Summary

• Supports high-speed synchronous serial communication through a standard four-wire SPI interface.
• Includes programmable block write protection allowing selective array security.
• Features built-in power-on/off data protection circuitry and a write enable latch.
• Provides hardware write protection capability controlled by the WP pin.

Applications

• Microcontroller system data storage
• Configuration parameter retention
• Calibration value memory

Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the base part number covers multiple physical formats. Confirm the 'E' suffix aligns with the intended operating temperature requirements. Ensure the 'B' designation corresponds to the necessary page size for the application software. Cross-reference the manufacturer datasheet revision to confirm current electrical characteristics.

Selection Notes

Select this component when a 32-byte page size is preferred over the 16-byte variant found in 'A' series devices. The automotive grade temperature rating makes it suitable for harsh environments. Verify that the host microcontroller supports the required SPI modes. Consider the PDIP package constraints if surface mount space is limited.

Part Context

This device belongs to the 25XX080A/B family of 8 Kbit Serial EEPROMs from Microchip Technology. It shares the same core architecture and instruction set as other members of the series, differing primarily in page size and voltage specifications. The 'LC' designation indicates the specific voltage and technology variant within the broader product line.

Replacement Considerations

The 25LC080A-E/P serves as a functional alternative, though it utilizes a smaller 16-byte page size instead of the 32-byte buffer found in the B version. Both share identical pinouts and SPI compatibility.