W74M25JVSFIQ TR

Memory IC Overview

The W74M25JVSFIQ TR is a 256 Mbit SPI Flash memory device from the Winbond W74M Authentication Flash family. It operates at a nominal 3V supply voltage and utilizes an 8-pin WSON package measuring 8x6 mm. The component integrates a standard HMAC-SHA-256 crypto accelerator and four separate Monotonic Flash Counters, which are individually HMAC-signed by secret keys to ensure data integrity.

Memory IC Feature Summary

• Integrates a standard HMAC-SHA-256 crypto accelerator for cryptographic operations
• Includes four separate Monotonic Flash Counters signed by individual secret keys
• Supports multi-layer authentication to verify counter value integrity and authenticity
• Provides timestamping capabilities to resist reply attacks during information transmission

Memory IC Applications

• Emerging IoT applications demanding multi-layered authenticity
• Mobile accessories requiring secure storage
• Home automation systems
• Industrial control environments
• Smart home devices

Memory IC Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and tape-and-reel specifications. Confirm the active lifecycle status directly with the manufacturer or authorized distributors before finalizing procurement plans. Ensure compliance with RoHS standards and check export classification codes relevant to your region.

Memory IC Selection Notes

Select this component when designs require hardware-level code protection and anti-cloning features within a compact footprint. The integrated security accelerators eliminate the need for external cryptographic chips. Verify that the system architecture supports the required SPI interface protocols and that the operating temperature range aligns with the intended deployment environment.

Memory IC Part Context

This part belongs to the W74M product family, designed to simplify the integration of multi-layer authentication into existing electronic designs. The series focuses on strengthening code and data storage security for Internet of Things (IoT) devices. Winbond manufactures these components using its own 12-inch fabrication facilities to ensure capacity support and delivery flexibility.

Memory IC Replacement Considerations

Consult official datasheets for cross-reference compatibility. Substitutes must match the 256 Mbit density, 3V operation, WSON-8 packaging, and integrated authentication features to maintain system security integrity.

Memory IC FAQ

How does the W74M25JVSFIQ TR prevent replay attacks?

It adds a timestamp to messages transmitted alongside counter values, providing resistance against replay attacks.

What cryptographic functions are built into this component?

The device includes a standard HMAC-SHA-256 crypto accelerator and utilizes individual secret keys to sign Monotonic Flash Counters.