25LC160BT-E/MS

Overview

The Microchip Technology 25LC160BT-E/MS is a 16 Kbit (2048 x 8-bit) Serial Electrically Erasable PROM. It utilizes an SPI-compatible serial bus for data access, supporting a maximum clock frequency of 10 MHz. The device features a 32-byte page size and operates within a supply voltage range of 2.5 V to 5.5 V. It is housed in an 8-lead MSOP package and supports an extended temperature range from -40°C to +125°C.

Feature Summary

• Supports high-speed SPI communication with up to 10 MHz clock frequency
• Includes built-in write protection via hardware WP pin and software status register control
• Features self-timed erase and write cycles with automatic latch reset
• Provides hold functionality to pause serial transmission without resetting the sequence

Applications

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

Procurement Notes

Verify the specific suffix 'E' indicates the automotive temperature grade (-40°C to +125°C). Confirm the 'T' denotes tape and reel packaging if required by assembly equipment. Ensure the 'MS' package matches the PCB footprint design. Cross-reference the datasheet revision to confirm compatibility with existing firmware instruction sets.

Selection Notes

Select this component when an SPI interface is preferred over I2C or Microwire protocols. Choose the 'B' version variant specifically for applications requiring 32-byte page writes instead of 16-byte pages. Consider the automotive temperature rating if the operating environment exceeds standard industrial limits. Verify that the 2.5V minimum supply voltage aligns with the system power rails.

Part Context

This part belongs to the 25LC160A/B family of 16 Kbit Serial EEPROMs manufactured by Microchip Technology. The family shares common architectural features but differs in page sizes and voltage ranges. The 'LC' designation indicates a 2.5V minimum operating voltage, distinguishing it from the 'AA' series which supports lower voltages down to 1.8V.

Replacement Considerations

Direct functional substitutes include other 25LC160 variants such as 25LC160B-I/ST or 25LC160B-E/P, provided the package type and temperature range requirements are met. Verify that any replacement maintains the same 32-byte page size and SPI command set compatibility.