25LC160D-I/ST

Overview

The Microchip Technology 25LC160D-I/ST is a 16 Kbit Serial Electrically Erasable PROM featuring an SPI-compatible interface. It utilizes Low-Power CMOS technology with a 2048 x 8-bit organization and a 32-byte page size specific to the 'D' version. The device supports a maximum clock frequency of 10 MHz at 4.5V to 5.5V, operating within a supply voltage range of 2.5V to 5.5V. It offers high reliability with over 1 million erase/write cycles and data retention exceeding 200 years. The component operates in an industrial temperature range from -40°C to +85°C and is housed in an 8-lead TSSOP package.

Feature Summary

• Supports serial communication via a standard SPI bus with separate data input and output lines.
• Includes built-in write protection mechanisms such as a write enable latch and hardware write-protect pin.
• Features self-timed erase and write cycles that automatically complete without host intervention.
• Provides power-on/off data protection circuitry to prevent inadvertent writes during power transitions.

Applications

• Data storage for microcontroller systems requiring non-volatile memory
• Configuration parameter storage in embedded devices
• Calibration data retention in industrial instrumentation

Procurement Notes

Verify the exact ordering suffix matches the required package type and temperature grade. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor declarations. Ensure the specific variant aligns with system voltage and interface requirements before finalizing procurement orders.

Selection Notes

Select this component when a 32-byte page size is required for efficient sequential writing operations. Choose this part for applications needing industrial temperature stability and robust hardware write protection features. Consider the TSSOP package dimensions if surface-mount space constraints are a primary design factor.

Part Context

This device belongs to the 25XX160C/D family of 16 Kbit Serial EEPROMs manufactured by Microchip Technology. The 'D' designation specifically indicates a 32-byte page buffer size, distinguishing it from the 'C' version which uses a 16-byte page. The 'I' suffix denotes the industrial temperature rating, while 'ST' identifies the 8-lead TSSOP package format.

Replacement Considerations

Direct substitutes include other variants within the 25LC160C/D family, such as 25LC160D-I/SN (SOIC) or 25LC160D-I/MS (MSOP), provided the package footprint is compatible. Cross-family replacements like the 25AA160D series may require voltage level verification due to different supply ranges.