M95256-RDW6TP

Memory IC Overview

The M95256-RDW6TP is a 256-Kbit serial EEPROM organized as 32K x 8 bits, accessed via an SPI bus. It operates with a supply voltage from 1.8 V to 5.5 V and supports clock frequencies up to 20 MHz. The device features a page size of 64 bytes and includes an additional Identification Page for storing sensitive parameters that can be permanently locked in read-only mode. It offers enhanced ESD protection, over 4 million write cycles, and data retention exceeding 200 years. Operating temperatures range from -40 °C to +85 °C.

Memory IC Feature Summary

• Supports high-speed SPI communication with clock frequencies up to 20 MHz
• Includes a dedicated lockable Identification Page for secure parameter storage
• Provides robust data integrity with extended write cycle endurance and long-term retention

Memory IC Applications

• Industrial control systems requiring non-volatile data storage
• Automotive electronics compliant with AEC-Q100 standards
• Consumer devices needing reliable configuration memory

Memory IC Procurement Notes

Verify the specific suffix RDW6TP against official STMicroelectronics documentation to confirm package type and tape/reel specifications. Ensure compatibility with system voltage requirements (1.8V to 5.5V) and temperature ranges (-40°C to +85°C). Cross-reference part numbers with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status through current datasheets.

Memory IC Selection Notes

Select this component when a 256-Kbit capacity with SPI interface is required. Consider the 1.8V minimum operating voltage for low-power applications. The inclusion of the Identification Page makes it suitable for applications needing secure, lockable configuration data. Verify package availability in TSSOP-8 format if space constraints apply.

Memory IC Part Context

This part belongs to the M95256 series of serial EEPROMs from STMicroelectronics. The series offers various voltage ranges and packages, with the -R variant supporting 1.8V operation. The -DW suffix typically indicates a TSSOP-8 package. These devices are designed for applications requiring high reliability and frequent write operations.

Memory IC Replacement Considerations

M95256-DFDW6TP: Offers similar functionality with a lower minimum voltage of 1.7V. M95256-WDW6TP: Supports a higher minimum voltage of 2.5V. Verify pinout and electrical characteristics before substitution.