25LC160D-E/ST

Overview

The Microchip Technology 25LC160D-E/ST is a 16 Kbit Serial Electrically Erasable PROM featuring a 2048 x 8-bit organization. It utilizes an SPI-compatible serial bus with a maximum clock frequency of 10 MHz. The device operates within a voltage range of 2.5 V to 5.5 V and supports an extended industrial temperature range from -40°C to +125°C. It employs a 32-byte page size for write operations and is housed in an 8-lead TSSOP package.

Feature Summary

• Supports high-speed SPI communication with a maximum clock frequency of 10 MHz
• Includes built-in hardware write protection via the WP pin and STATUS register bits
• Features a HOLD input to pause serial communication without resetting the sequence
• Provides self-timed erase and write cycles with automatic internal timing

Applications

• Embedded systems requiring non-volatile data storage
• Microcontroller-based applications needing parameter logging
• Industrial control devices operating in extended temperature environments
• Automotive electronics utilizing automotive-grade components

Procurement Notes

Verify the specific suffix 'E' indicates the Automotive temperature grade (-40°C to +125°C) rather than standard Industrial grade. Confirm the 'D' suffix corresponds to the 32-byte page size variant. Ensure the 'ST' suffix matches the required 8-lead TSSOP package type for your PCB layout.

Selection Notes

Select this component when an extended temperature range up to +125°C is required for automotive or harsh industrial applications. Choose the 'D' version over the 'C' version if a larger 32-byte page buffer improves write efficiency. Ensure the system voltage remains within the 2.5 V to 5.5 V operational limits.

Part Context

This part belongs to the 25XX160C/D family of 16 Kbit Serial EEPROMs. The 'LC' designation specifies a 2.5 V minimum supply voltage, distinguishing it from the 'AA' series which supports lower voltages down to 1.8 V. The 'D' variant specifically offers a 32-byte page size compared to the 16-byte page size of the 'C' variant.

Replacement Considerations

The 25LC160C-E/ST serves as a direct functional substitute but features a smaller 16-byte page size instead of 32 bytes. Other compatible replacements include the 25AA160D-E/ST, though it supports a wider voltage range starting at 1.8 V.