GD25WQ40EEIGR

Memory IC Overview

The GD25WQ40EEIGR is a 4M-bit (512K x 8) Serial NOR Flash memory manufactured by GigaDevice. It supports Standard, Dual, and Quad SPI interfaces with a maximum clock frequency of 104 MHz for fast read operations. The device operates on a single power supply voltage ranging from 1.65V to 3.6V. It features uniform sector architecture with 4K-byte sectors and 32/64K-byte blocks. Key electrical characteristics include a typical standby current of 11μA and deep power-down current of 0.1μA. The component offers high endurance with a minimum of 100,000 program/erase cycles and 20-year data retention.

Memory IC Feature Summary

• Supports standard, dual, and quad SPI modes for flexible data transfer rates up to 416 Mbits/s in Quad I/O mode.
• Provides software and hardware write protection mechanisms including block protect bits and WP# pin control.
• Integrates advanced security features such as a 128-bit unique ID and two 2048-byte security registers with OTP locks.
• Enables Execute In Place (XiP) operation with continuous read capabilities to reduce instruction fetch latency.

Memory IC Applications

• Code storage for microcontrollers and system-on-chips requiring direct execution.
• Firmware storage in consumer electronics and IoT devices.
• Data logging and configuration storage in industrial control systems.
• BIOS and boot code storage in embedded computing platforms.

Memory IC Procurement Notes

Verify the specific suffix 'IGR' against the manufacturer's official ordering guide to confirm package type and tape/reel specifications. Ensure compatibility with the required operating voltage range of 1.65V to 3.6V. Confirm that the design supports the necessary SPI interface modes (Standard/Dual/Quad) and dummy cycle configurations for optimal performance at 104 MHz. Check for any regional compliance certifications required for the target market.

Memory IC Selection Notes

Select this component when a 4M-bit capacity is required with low power consumption and high-speed read capabilities. It is suitable for applications needing robust data protection via hardware or software lock mechanisms. Consider the USON-8 package if space constraints are critical. Ensure the host controller supports the specific command set and status register configurations, particularly for Quad Enable and dummy cycle settings.

Memory IC Part Context

This part belongs to the GD25WQ series of Uniform Sector Dual and Quad Serial Flash memories. It shares architectural similarities with the GD25WQ20E but offers double the density. The series is designed for cost-effective, high-performance storage solutions. It complements other GigaDevice flash products by providing a balance of speed, reliability, and compact packaging options for diverse embedded applications.

Memory IC Replacement Considerations

GD25WQ20EEIGR: Lower density (2M-bit) variant with identical interface and package. GD25WQ40EEEGR: Similar specification but may differ in package or environmental rating; verify datasheet details. GD25Q40CSIGR: Older generation product with different voltage range (2.7V-3.6V) and package; not directly compatible without circuit adjustment.