GD25LF64EQEGR

Memory IC Overview

The GD25LF64EQEGR is a 64 Mbit Serial NOR Flash memory device manufactured by GigaDevice. It operates on a single power supply voltage ranging from 1.65 V to 2.0 V. The component supports Standard, Dual, Quad SPI, QPI, and DTR Quad I/O interfaces with a maximum clock frequency of 166 MHz for fast read operations. It features uniform sector architecture with 4 KByte sectors and 32/64 KByte blocks. The device includes advanced security features such as hardware write protection, OTP locks, and a unique ID.

Memory IC Feature Summary

• Supports multiple interface modes including Standard, Dual, Quad SPI, QPI, and DTR Quad I/O for flexible data transfer rates.
• Provides software-based write protection with configurable top/bottom block protection and status register locking mechanisms.
• Integrates a 128-bit Unique ID and Serial Flash Discoverable Parameters (SFDP) registers for system identification and configuration.
• Features low power consumption with typical standby current of 10 μA and deep power-down current of 0.2 μA.

Memory IC Applications

• Execute In Place (XiP) code storage in embedded systems
• BIOS and firmware storage for consumer electronics
• Industrial control systems requiring high reliability
• IoT devices with limited power budgets

Memory IC Procurement Notes

Verify the specific ordering suffix 'QEGR' against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure the voltage range matches the application requirements, as this variant supports 1.65V-2.0V. Confirm RoHS compliance and automotive qualification status if applicable to your design. Cross-reference the part number with the latest revision history to ensure no functional changes have occurred.

Memory IC Selection Notes

Select this component when a compact 64 Mbit NOR flash solution is required with support for high-speed DTR Quad I/O operations. It is suitable for designs needing execute-in-place capabilities with reduced instruction fetch latency. Consider the USON8 package option for space-constrained PCB layouts. Ensure the host controller supports the necessary SPI modes and command sets for optimal performance.

Memory IC Part Context

The GD25LF64E series belongs to GigaDevice's family of dual and quad serial flash memories. It is designed for applications requiring high performance and low power consumption. The series offers various package options including SOP8 and USON8/WSON8 variants. The GD25LF64EQEGR specifically denotes a version within this lineup optimized for specific voltage and packaging needs.

Memory IC Replacement Considerations

Check for GD25LQ64 or GD25WQ64 equivalents if different voltage levels or packages are needed. Verify compatibility with existing firmware due to potential differences in command sets or timing parameters between series revisions.

Memory IC FAQ

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

The QE bit is set to 1 by default and cannot be changed, enabling Quad operation immediately upon power-up.

How does the device handle write protection?

It provides software write protection via Block Protect bits (BP4-BP0) in the status register, allowing protection of specific memory regions against program and erase commands.

What is the purpose of the SFDP register?

The Serial Flash Discoverable Parameter (SFDP) register allows the host system to automatically discover key parameters of the flash memory, such as density, page size, and supported commands.