25LC160DT-E/ST

Overview

The Microchip Technology 25LC160DT-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 SCK, SI, SO, and CS signals. The device supports a maximum clock frequency of 10 MHz at VCC levels between 4.5V and 5.5V. It operates within a supply voltage range of 2.5V to 5.5V and includes a 32-byte page size for write operations. The component is housed in an 8-lead TSSOP package and supports an industrial temperature range from -40°C to +85°C.

Feature Summary

• Supports high-speed SPI communication with a maximum clock frequency of 10 MHz
• Features a 32-byte page buffer for efficient sequential data writing
• Includes hardware write protection via the WP pin and software block protection settings
• Provides hold functionality to pause serial communication 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 'DT' indicates the TDFN-8 package variant when cross-referencing official documentation, as standard datasheets may list TSSOP or SOIC packages for similar part numbers. Confirm the 'E' designation corresponds to the extended temperature range if required by the application environment. Ensure compatibility with the host controller's SPI mode and voltage levels before integration.

Selection Notes

Select this component for applications requiring non-volatile memory with SPI interface compatibility. The 16Kbit capacity suits small data logging tasks. Consider the 32-byte page size for write efficiency compared to smaller page variants. Verify that the operating voltage range aligns with the system power supply and that the package type fits the PCB layout constraints.

Part Context

This device belongs to the 25XX160C/D family of 16 Kbit Serial EEPROMs from Microchip Technology. The family shares core architecture but varies in page size ('C' version has 16 bytes, 'D' version has 32 bytes) and package options. The 'L' suffix denotes 2.5V operation, while 'AA' denotes 1.8V operation. This specific model is designed for industrial environments.

Replacement Considerations

Direct substitutes include other 25LC160 variants with different packages such as 25LC160T-I/ST (TSSOP) or 25LC160/P (PDIP). Ensure the replacement maintains the 32-byte page size ('D' series) and compatible voltage ranges. Verify that any alternative package does not alter pinout configurations significantly.