25LC080B-I/SN

Overview

The Microchip Technology 25LC080B-I/SN is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM. It utilizes a standard SPI-compatible serial bus for communication, requiring SCK, SI, SO, and CS signals. The device operates within a supply voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 10 MHz. It features a 32-byte page size and includes block write protection capabilities. The component is housed in an 8-lead SOIC package and is rated for industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Supports high-speed SPI serial communication with up to 10 MHz clock frequency
• Includes programmable hardware write protection via the WP pin and Status Register bits
• Features self-timed erase and write cycles with automatic latch reset mechanisms
• Provides data retention exceeding 200 years and endurance of 1,000,000 cycles

Applications

• Microcontroller system data storage
• Configuration parameter memory
• Calibration value storage
• Device identification and tracking information

Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm the 'B' version designation indicates the 32-byte page size rather than the 16-byte variant found in 'A' versions. Ensure compatibility with the target system's SPI mode and voltage levels before finalizing procurement.

Selection Notes

Select this component when a non-volatile memory solution requires simple serial interface integration with microcontrollers. The 25LC080B offers higher throughput per page compared to the A version due to its larger buffer. Consider the SOIC package constraints regarding board space and thermal dissipation requirements for the specific application environment.

Part Context

This part belongs to the 25XX080A/B family of 8Kbit Serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 25AA080B but differs in minimum operating voltage specifications. The device is designed to replace legacy parallel EEPROMs in space-constrained designs requiring robust data retention.

Replacement Considerations

Direct functional replacements include other 25LC080 variants such as 25LC080B-I/ST or 25LC080B-I/MS, provided the package footprint is compatible. Cross-voltage alternatives like the 25AA080B may be considered if lower voltage operation is required.