25LC160B-I/P

Overview

The Microchip Technology 25LC160B-I/P is a 16 Kbit (2048 x 8-bit) Serial Electrically Erasable PROM. It utilizes an SPI-compatible serial bus for data access, supporting clock frequencies up to 10 MHz. The device operates within a supply voltage range of 2.5 V to 5.5 V and features a 32-byte page write buffer. It is housed in an 8-lead PDIP package and supports industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Supports high-speed SPI communication with sequential read capabilities
• Includes programmable block write protection for array security
• Features self-timed erase and write cycles with internal timing control

Applications

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

Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature rating and 'P' indicates the PDIP package style. Ensure the datasheet version matches the required revision for accurate electrical characteristics. Confirm RoHS compliance status if environmental regulations apply to the target assembly process.

Selection Notes

Select this component when a 16 Kbit capacity is required with standard SPI interface compatibility. The 'B' variant offers a larger 32-byte page size compared to older versions, improving write efficiency. Ensure the host microcontroller supports the necessary SPI modes and voltage levels compatible with the 2.5 V to 5.5 V operating range.

Part Context

This part belongs to the 25LC160A/B series of low-voltage serial EEPROMs. It shares architectural similarities with other devices in the family but differs in page size and specific electrical parameters based on the letter suffix. The 'I' designation specifies the industrial temperature grade suitable for general-purpose electronic equipment.

Replacement Considerations

Direct replacements include the 25LC160A variants, though note the difference in page size between 'A' and 'B' versions. Other pin-compatible options within the same manufacturer's portfolio may require software adjustments due to differing instruction sets or timing specifications.