GD25B64EWIGY

Memory IC Overview

The GD25B64EWIGY is a 64M-bit Serial NOR Flash memory device from the GD25B64E series, manufactured by GigaDevice. It supports Standard, Dual, and Quad SPI interfaces with a maximum clock frequency of 133 MHz for fast read operations. The device operates on a single power supply voltage ranging from 2.7 V to 3.6 V. It features a uniform sector architecture with 4K-byte sectors and 32/64K-byte blocks. Key electrical characteristics include a typical standby current of 12 μA and a deep power-down current of 1 μA. The memory organization consists of 8M x 8 bits, organized into pages of 256 bytes.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI interfaces for flexible data transfer rates up to 532 Mbits/s in Quad I/O mode.
• Features software write protection with block protect bits allowing top/bottom or full array protection against program and erase commands.
• Integrates advanced security features including 128-bit unique ID, serial flash discoverable parameters (SFDP), and three 1024-byte security registers with OTP locks.
• Enables Execute In Place (XiP) operation with continuous read capabilities to reduce instruction fetch time and fill SoC cache.

Memory IC Applications

• Code storage for microcontrollers and system-on-chips requiring direct execution.
• Data logging and configuration storage in embedded systems.
• Firmware storage in consumer electronics and IoT devices.
• Industrial control systems requiring reliable non-volatile memory.

Memory IC Procurement Notes

Verify the specific package type corresponding to the suffix 'GY' against the manufacturer's official ordering information table, as datasheets may list multiple package options like SOP8, USON8, or WSON8. Confirm that the component meets the required industrial temperature range specifications if applicable to your design environment. Ensure compatibility with the host controller's SPI interface modes, particularly regarding the default Quad Enable bit state.

Memory IC Selection Notes

Select this component when a 64M-bit capacity is required with support for high-speed Quad SPI operations. It is suitable for applications needing execute-in-place functionality to simplify system architecture. Consider the available package options such as SOP8 or USON8 based on board space constraints. Verify that the 2.7V to 3.6V voltage range aligns with the system power supply rails.

Memory IC Part Context

The GD25B64EWIGY belongs to the GD25B64E family of dual and quad serial flash memories. This series is designed for high-performance code storage with uniform sector architecture. The family supports various packages including SOP8, USON8, WSON8, and TFBGA-24. It targets applications demanding reliability, low power consumption, and flexible protection schemes for both consumer and industrial markets.

Memory IC Replacement Considerations

Check for other GD25B64E variants with different package suffixes if physical footprint changes are acceptable. Cross-reference with other 64M-bit SPI NOR flashes from GigaDevice or competitors ensuring identical pinout and command set compatibility. Verify voltage and speed specifications match the original design requirements before substitution.

Memory IC FAQ

What is the default state of the Quad Enable (QE) bit?

The QE bit is permanently set to 1 by default and cannot be changed, enabling Quad I/O operations immediately upon power-up without additional configuration.

How does the device handle status register protection?

The status register can be protected via software using SRP bits, power supply lock-down, or one-time programmable (OTP) settings to prevent unintended modifications.