GD25LF128ESIGR

Memory IC Overview

The GD25LF128ESIGR is a 128 Mbit Serial NOR Flash memory device manufactured by GigaDevice. It features a 16 M-Byte organization with uniform sector architecture and supports standard, Dual, Quad SPI, QPI, and DTR interfaces. The device operates on a single power supply voltage ranging from 1.65 V to 2.0 V. It achieves a maximum clock frequency of 166 MHz for fast read operations. Data transfer rates reach up to 332 Mbits/s in Dual I/O mode, 664 Mbits/s in Quad I/O mode, and 832 Mbits/s in DTR Quad I/O mode. The component is housed in an SOP-8 package.

Memory IC Feature Summary

• Supports multiple interface modes including Standard SPI, Dual SPI, Quad SPI, QPI, and DTR Quad I/O for flexible data throughput.
• Provides software write protection via Block Protect bits allowing selective memory area locking against program and erase commands.
• Includes advanced security features such as 128-bit Unique ID, Serial Flash Discoverable Parameters (SFDP), and OTP-lockable Security Registers.
• Enables Execute In Place (XiP) operation with continuous read wrap functionality to reduce instruction fetch latency.

Memory IC Applications

• Code storage for microcontrollers and system-on-chips requiring direct execution capability
• Firmware storage in consumer electronics and industrial control systems
• Data logging applications utilizing the device's high endurance and retention specifications

Memory IC Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature range. Confirm that the voltage supply aligns with the 1.65 V to 2.0 V operational window. Ensure compatibility with the host controller's SPI interface modes, particularly regarding the permanently enabled Quad Enable bit. Check for any specific revision differences in the datasheet before finalizing procurement.

Memory IC Selection Notes

Select this component when a low-voltage 128 Mbit NOR Flash is required with high-speed read capabilities. The SOP-8 package suits surface-mount designs with moderate pin count constraints. Consider the fixed QE bit setting which mandates Quad/DTR support if those modes are utilized. Evaluate the uniform sector size requirements against application-specific erase granularity needs.

Memory IC Part Context

This part belongs to the GD25LF128E series of Uniform Sector Dual and Quad Serial Flash memories. It is designed for applications needing reliable code execution and data storage. The series emphasizes low power consumption and high performance through advanced interface protocols. It targets embedded systems where space and power efficiency are critical design parameters.

Memory IC Replacement Considerations

GD25LF128EQIGR: Offers identical electrical characteristics but utilizes a USON-8 package instead of SOP-8. Verify footprint compatibility and thermal requirements when substituting.

Memory IC FAQ

Can the Quad Enable (QE) bit be disabled?

No, the QE bit is set to 1 by default and cannot be changed. This ensures that IO2 and IO3 pins are always enabled for Quad and DTR operations.

What is the default state of the device after power-up?

Upon power-up, the device defaults to Standard/Dual/Quad SPI mode. All volatile bits return to their default status, and the QE bit remains active.