25LC160B-I/MS

Overview

The Microchip Technology 25LC160B-I/MS is a 16 Kbit (2048 x 8-bit) Serial Electrically Erasable PROM featuring an SPI-compatible interface. It operates within a voltage range of 2.5 V to 5.5 V and supports a maximum clock frequency of 10 MHz. The device utilizes a 32-byte page write architecture and is housed in an 8-lead MSOP package. It functions reliably across an industrial temperature range of -40°C to +85°C, ensuring data retention exceeding 200 years with high endurance capabilities.

Feature Summary

• Supports sequential read operations and self-timed erase/write cycles via SPI bus
• Includes hardware write protection through dedicated WP pin and software-controlled block protection
• Features built-in power-on/off data protection circuitry and write enable latch mechanisms

Applications

• Microcontroller system configuration storage
• Calibration parameter persistence
• Embedded logging and data caching

Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature grade (-40°C to +85°C). Confirm the 'B' designation indicates the 32-byte page size rather than the 16-byte variant found in 'A' series devices. Ensure the MSOP package matches the target PCB footprint requirements for surface mount assembly.

Selection Notes

Select this component when a 16 Kbit non-volatile memory solution is required with standard SPI connectivity. The 2.5 V minimum supply voltage distinguishes it from lower-voltage AA series parts. The MSOP package offers a compact form factor suitable for space-constrained designs requiring robust industrial-grade performance.

Part Context

This part belongs to the 25LC160B family of serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 25AA160B but differs in operating voltage specifications. The device is designed for direct interfacing with popular microcontroller families supporting SPI protocols without requiring additional level shifting components.

Replacement Considerations

Public confirmed substitute part numbers: 25LC160B-I/ST, 25LC160B-I/SN.