25LC160C-I/P

Overview

The Microchip Technology 25LC160C-I/P is a 16 Kbit (2048 x 8-bit) Serial Electrically Erasable PROM. It operates within a voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 10 MHz at 5.5V. The device features a 16-byte page size and utilizes an SPI-compatible serial bus with SCK, SI, SO, CS, HOLD, and WP pins. It includes block write protection, power-on data protection, and a write enable latch. Endurance exceeds 1 million erase/write cycles with over 200 years of data retention. The Industrial temperature grade (-40°C to +85°C) is housed in an 8-lead PDIP package.

Feature Summary

• Supports SPI-compatible serial communication with hold functionality for bus pausing
• Includes hardware and software write protection mechanisms via WP pin and STATUS register
• Features self-timed erase and write cycles with automatic address pointer incrementation

Applications

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

Procurement Notes

Verify the specific suffix 'I' confirms the Industrial temperature range (-40°C to +85°C) and 'P' denotes the 8-lead PDIP package. Confirm RoHS compliance and Pb-free status as stated in the datasheet. Ensure the ordering code matches the exact 25LC160C variant with 16-byte page size rather than the D version.

Selection Notes

Select this component when a 16 Kbit EEPROM with SPI interface is required for industrial environments. The 2.5V to 5.5V supply range offers flexibility for various logic levels. The 16-byte page size suits applications requiring smaller write buffers compared to the 32-byte D version. Verify that the host microcontroller supports the necessary SPI modes and timing requirements.

Part Context

This part belongs to the 25XX160C/D family of 16 Kbit Serial EEPROMs. The 'LC' designation indicates a 2.5V to 5.5V operating voltage range, distinct from the 'AA' variant which supports 1.8V. The 'C' suffix specifies a 16-byte page size, whereas 'D' indicates 32 bytes. The 'I' suffix defines the Industrial temperature grade.

Replacement Considerations

Public confirmed substitutes include other 25LC160C variants with different packages (e.g., SN, ST, MS, MN) or the 25LC160D if 32-byte pages are acceptable. Cross-referencing with 25AA160C requires verifying the lower 1.8V support requirement.