GD25Q64EQIGR

Memory IC Overview

The GD25Q64EQIGR is a 64M-bit (8M x 8) NOR flash memory manufactured by GigaDevice. It supports standard, dual, and quad SPI interfaces with a maximum clock frequency of 133 MHz. The device operates on a single power supply voltage ranging from 2.7V 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 12μA and deep power-down current of 1μA. The component ensures data retention for 20 years and endurance of at least 100,000 program/erase cycles.

Memory IC Feature Summary

• Supports standard, dual, and quad SPI modes for flexible data transfer rates up to 532 Mbits/s in Quad I/O mode.
• Provides comprehensive software and hardware write protection mechanisms including top/bottom block protection and status register locking.
• Features advanced security capabilities such as a 128-bit unique ID, serial flash discoverable parameters (SFDP), and three 3KB security registers with OTP locks.
• Enables execute-in-place (XiP) operations with continuous read wrap functionality to reduce instruction fetch latency.

Memory IC Applications

• Storing firmware, bootloaders, and operating system kernels in embedded systems.
• Hosting BIOS code and configuration parameters for consumer electronics and industrial controllers.
• Data logging and parameter storage in IoT devices and communication modules.

Memory IC Procurement Notes

Verify the specific package variant corresponding to the 'IGR' suffix against the manufacturer's ordering information table. Confirm that the required pinout matches SOP8 208mil specifications if applicable. Ensure compatibility with the host controller's SPI interface modes, particularly regarding the Quad Enable bit configuration. Validate environmental ratings against the intended operational temperature range.

Memory IC Selection Notes

Select this component when high-speed read performance via Quad SPI is required alongside robust data protection features. Consider the uniform sector architecture for consistent erase granularity across the memory array. Evaluate the low power consumption profiles for battery-operated applications. Ensure the design accommodates the necessary dummy cycle configurations for optimal timing at higher clock frequencies.

Memory IC Part Context

This part belongs to the GD25Q64E series of uniform sector dual and quad serial flash memories. The series is designed for applications requiring reliable non-volatile storage with fast access times. It integrates high-voltage generators internally to eliminate the need for external programming voltages. The device is compatible with standard SPI protocols while offering enhanced throughput through multi-I/O modes.

Memory IC Replacement Considerations

GD25Q64ESIGR

Memory IC FAQ

How does the Quad Enable (QE) bit affect the HOLD# and WP# pins?

When the QE bit is set to 1, the HOLD# and WP# pins function as bidirectional I/O pins (IO3 and IO2) for Quad SPI operations, disabling their dedicated hold and write-protect functions.

What is the purpose of the Dummy Configuration (DC) bit?

The DC bit configures the number of dummy cycles inserted between address transmission and data output, ensuring proper timing alignment for read operations at different clock frequencies.