25C160/SN

Memory IC Overview

The Microchip Technology 25C160/SN is a 16 Kbit (2048 x 8-bit) Serial Electrically Erasable PROM accessed via an SPI-compatible serial bus. It operates within a voltage range of 4.5V to 5.5V with a maximum clock frequency of 3 MHz. The device supports industrial and automotive temperature ranges (-40°C to +85°C and -40°C to +125°C respectively). Key electrical characteristics include a typical standby current of 500 nA, a maximum write current of 3 mA, and a self-timed erase/write cycle time of 5 ms maximum.

Memory IC Feature Summary

• Features block write protection allowing selection of none, 1/4, 1/2, or all array segments.
• Includes built-in power on/off data protection circuitry and a write enable latch.
• Supports sequential read operations with automatic address pointer incrementation.
• Provides hardware write protection via the WP pin in conjunction with the Status register.

Memory IC Applications

• Microcontroller system data storage
• Configuration parameter retention
• Calibration value storage

Memory IC Procurement Notes

Verify the specific suffix for package type and temperature grade before ordering. Confirm that the 4.5V minimum supply voltage requirement aligns with the target system design. Check datasheet revision history for any operational updates or errata associated with this component family.

Memory IC Selection Notes

Select this component when a 5V-only supply environment is present. Ensure the application requires SPI interface compatibility. Consider the 16-byte page write limitation where all bytes must reside in the same page. Verify that the 5 ms internal write cycle time meets the system timing requirements.

Memory IC Part Context

This part belongs to the 25XX160 family of 16 Kbit Serial EEPROMs. It shares architectural similarities with the 25AA160 and 25LC160 but is distinguished by its higher minimum operating voltage of 4.5V. The 'SN' suffix indicates an 8-lead Plastic Small Outline (SOIC) package.

Memory IC Replacement Considerations

Datasheet notes indicate this device is not recommended for new designs. Suggested alternatives include the 25AA160A/B or 25LC160A/B series which offer broader voltage ranges.