25LC160DT-I/SN

Overview

The Microchip Technology 25LC160DT-I/SN is a 16 Kbit Serial Electrically Erasable PROM featuring a 2K x 8 organization and 32-byte page size. It operates via an SPI-compatible serial bus with a maximum clock frequency of 10 MHz at VCC levels between 4.5V and 5.5V, reducing to 5 MHz at 2.5V–4.5V and 3 MHz at 1.8V–2.5V. The device supports a supply voltage range of 2.5V to 5.5V, housed in an 8-lead SOIC package. It provides over 1 million erase/write cycles endurance and data retention exceeding 200 years within the industrial temperature range of -40°C to +85°C.

Feature Summary

• Supports sequential read operations and self-timed erase/write cycles with a maximum duration of 5 ms.
• Includes built-in write protection mechanisms such as power-on/off data protection, a write enable latch, and a dedicated write-protect pin.
• Features a HOLD input that allows communication pausing without resetting the serial sequence, facilitating higher priority interrupt servicing.

Applications

• Data storage for configuration parameters in microcontroller systems
• Non-volatile memory logging in industrial monitoring devices
• Storing calibration data in sensor interfaces

Procurement Notes

Verify the specific suffix 'DT' indicates tape and reel packaging and 'I' denotes the industrial temperature grade. Confirm the 'SN' suffix corresponds to the 8-lead SOIC package type. Ensure the order quantity aligns with manufacturer reel specifications. Cross-reference the datasheet revision to confirm compatibility with current design requirements.

Selection Notes

Select this component when a 32-byte page size is required for efficient bulk data writes compared to the 16-byte variant. Choose the industrial temperature grade (-40°C to +85°C) for standard commercial or industrial environments. Ensure the system voltage remains within the 2.5V to 5.5V range to maintain the specified 10 MHz clock performance.

Part Context

This part belongs to the 25XX160C/D family of 16 Kbit Serial EEPROMs from Microchip Technology. The 'D' designation specifically identifies the 32-byte page architecture, distinguishing it from the 'C' version which utilizes a 16-byte page. The 'LC' variant specifies the 2.5V minimum operating voltage requirement.

Replacement Considerations

The 25LC160C-DT-I/SN serves as a direct functional substitute if a 16-byte page size is acceptable. For identical 32-byte page specifications, verify availability of other 25LC160D variants in different packages such as TSSOP or MSOP based on board layout constraints.