W77Q32JWSSIN

Memory IC Overview

The W77Q32JWSSIN is a 32 Mbit Secure spiFlash NOR memory device manufactured by Winbond. It operates within a supply voltage range of 1.7 V to 1.95 V and features an SPI interface with a maximum clock frequency of 133 MHz. The active read current is specified at a maximum of 12 mA, while the standby power consumption reaches up to 40 uA. The component utilizes a SOIC-8 surface-mount package and supports uniform 4 Kb sector architecture. It functions reliably across an industrial temperature range from -40 C to +85 C.

Memory IC Feature Summary

• Provides secure storage solutions for systems requiring Common Criteria EAL2 Security Certification.
• Integrates hardware and software write protection mechanisms alongside factory-programmed unique identification.
• Supports low-power operation suitable for space-constrained and power-sensitive embedded applications.

Memory IC Applications

• IoT devices requiring physical attacker resistance certification.
• Industrial automation and control systems needing IEC 62443 compliance.
• Automotive electronics demanding ISO26262 ASIL-C functional safety standards.

Memory IC Procurement Notes

Verify the specific suffix designation against official documentation to confirm pinout compatibility and security feature sets. Confirm availability status as distribution channels may indicate limited stock or end-of-life transitions. Ensure environmental handling precautions are observed due to moisture sensitivity classification during assembly processes.

Memory IC Selection Notes

Select this component when strict cybersecurity certifications such as SESIP Level 2 and FIPS 140-3 are mandatory for the target application. Consider the 1.8V operating voltage requirement carefully to ensure compatibility with the system's power rails. Evaluate the SOIC-8 footprint constraints against available board space and thermal management requirements.

Memory IC Part Context

This part belongs to the TrustME W77Q family of secure serial flash memories designed for high-security environments. It complements standard NOR flash offerings by adding certified cryptographic capabilities without increasing pin count significantly. The series addresses growing demands for secure boot and data integrity in connected devices.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: W77Q32JWSSIQ TR, W77Q32JWSSIR TR.