GD25LB512MEYIGR

Memory IC Overview

The GD25LB512MEYIGR is a 512M-bit (64M-byte) SPI NOR flash memory manufactured by GigaDevice. It operates on a single power supply voltage ranging from 1.65V to 2.0V and supports standard, Quad SPI, DTR, and QPI interfaces with a maximum clock frequency of 166MHz. The device features uniform sector architecture with 4K-byte sectors and 32/64K-byte blocks. It includes advanced security features such as hardware write protection via the WP# pin, individual block protection, and OTP lockable security registers.

Memory IC Feature Summary

• Supports high-speed data transfer through Standard SPI, Quad SPI, DTR Quad I/O, and QPI modes.
• Provides flexible software and hardware write protection mechanisms including individual block locking.
• Features a dedicated hardware reset pin for reliable system recovery and state initialization.
• Includes a 128-bit unique ID and security registers with one-time programmable locks.

Memory IC Applications

• Execute in Place (XIP) operations requiring fast instruction fetch times.
• Embedded systems needing low-power standby and deep power-down modes.
• Applications requiring secure code storage with hardware write protection.
• Industrial or consumer electronics utilizing uniform sector erase architectures.

Memory IC Procurement Notes

Verify the specific ordering suffix 'YIGR' against the manufacturer's current datasheet revision to confirm package type and tape/reel specifications. Ensure the design accommodates the 1.65V-2.0V voltage range. Confirm availability of WSON-8 packages if required. Check for any automotive or industrial grade variants if extended temperature ranges are needed beyond the standard industrial scope.

Memory IC Selection Notes

Select this component when a low-voltage (1.65V-2.0V) operation is required compared to standard 3.3V parts. It is suitable for designs prioritizing low power consumption and high-speed Quad/DTR read performance. Consider the WSON-8 package for space-constrained PCB layouts. Ensure the host controller supports the necessary SPI modes and command sets for full feature utilization.

Memory IC Part Context

This part belongs to the GD25LB series of Uniform Sector Standard and Quad Serial Flash memories. It shares architectural similarities with other GD25B/LR/T series devices but is distinguished by its specific low-voltage operating range and interface capabilities. It serves as a non-volatile storage solution within GigaDevice's broader portfolio of SPI NOR flash products designed for diverse embedded applications.

Memory IC Replacement Considerations

GD25LR512MF

Memory IC FAQ

What is the default mode upon power-up?

Upon power-up, the device defaults to Standard/Quad SPI mode. QPI mode must be explicitly enabled using the Enable QPI command.

How does the hardware write protection work?

Hardware write protection is controlled by the WP# pin. When WP# is driven low, it protects the Block Protect bits and the Status Register Protection bit, preventing unintended modifications to the protection settings.