25LC160B-E/MS

Overview

The Microchip Technology 25LC160B-E/MS is a 16 Kbit (2048 x 8-bit) Serial Electrically Erasable PROM. It utilizes an SPI-compatible serial bus for communication, featuring a maximum clock frequency of 10 MHz at VCC levels between 4.5V and 5.5V. The device supports a supply voltage range of 2.5V to 5.5V and includes a 32-byte page size. It operates within an extended temperature range of -40°C to +125°C and is housed in an 8-lead MSOP package.

Feature Summary

• Supports high-speed SPI communication with up to 10 MHz clock frequency
• Includes hardware write protection via WP pin and software block protection
• Features self-timed erase and write cycles with internal write enable latch
• Provides data retention exceeding 200 years and endurance of 1,000,000 cycles

Applications

• Microcontroller system data storage
• Configuration parameter storage
• Calibration data retention
• Device identification information storage

Procurement Notes

Verify the specific 'E' suffix indicates the Automotive grade (-40°C to +125°C) as defined in the datasheet selection table. Confirm the 'MS' suffix corresponds to the 8-lead MSOP package. Ensure compatibility with the required SPI interface mode and voltage levels before integration.

Selection Notes

Select this component when an extended industrial or automotive temperature range is required. The 'B' version offers a larger 32-byte page buffer compared to the 'A' version's 16 bytes. Verify that the host microcontroller supports the necessary SPI protocol and voltage levels for reliable operation.

Part Context

This part belongs to the 25LC160A/B family of 16 Kbit Serial EEPROMs from Microchip Technology. The family shares common architecture but differs in page size ('A' vs 'B') and operating temperature ranges ('I' vs 'E'). The 25LC160B-E/MS specifically targets applications requiring robust performance under extreme thermal conditions.

Replacement Considerations

Direct substitutes include other 25LC160B variants with different packages such as 25LC160B-I/ST or 25LC160B-I/SN, provided the temperature range meets requirements. Cross-vendor equivalents must be verified for pinout compatibility and electrical specifications.