GD25LB128DSIGR

Memory IC Overview

The GD25LB128DSIGR is a 128M-bit Serial NOR Flash memory device manufactured by GigaDevice. It operates on a single 1.65V to 2.0V power supply and supports Standard, Dual, Quad SPI, and QPI interfaces with a maximum clock frequency of 120MHz. The device features a uniform sector architecture with 4K-byte sectors and 32/64K-byte blocks. It includes advanced security features such as software write protection, hardware ECC, and CRC verification.

Memory IC Feature Summary

• Supports Standard, Dual, Quad SPI, and QPI modes for flexible data transfer rates up to 480Mbits/s.
• Features uniform sector architecture allowing granular erase operations at 4K-byte and block levels.
• Includes advanced security mechanisms with hardware-based ECC algorithms and CRC checksums for data integrity.
• Provides software write protection via Block Protect bits and One-Time Programmable Security Registers.

Memory IC Applications

• Code storage in embedded systems requiring high reliability.
• Firmware storage for IoT devices and consumer electronics.
• Data logging applications needing long-term retention.
• Boot code storage for microcontrollers and SoCs.

Memory IC Procurement Notes

Verify the specific suffix 'SIGR' against the manufacturer's official ordering information table to confirm package type and tape/reel specifications. Ensure compatibility with the required voltage range of 1.65V to 2.0V. Check for RoHS compliance status if environmental regulations apply to your design. Confirm lead-free status if required by assembly processes.

Memory IC Selection Notes

Select this component when a low-voltage (1.8V) operation is required with high-speed Quad I/O capabilities. It is suitable for designs prioritizing power efficiency alongside moderate density requirements. Consider the uniform sector size for simplified file system implementation. Verify that the host controller supports the necessary SPI modes including QPI if maximum throughput is needed.

Memory IC Part Context

This part belongs to the GD25LB series of 1.8V Uniform Sector Dual and Quad Serial Flash memories. It is designed for applications demanding low power consumption and high performance within a compact footprint. The series offers various package options including SOP, VSOP, WSON, and WLCSP to suit different board space constraints.

Memory IC Replacement Considerations

Check for GD25LB128D variants with different suffixes for alternative packaging or temperature grades. Ensure any substitute maintains the 1.65V-2.0V operating voltage and 120MHz clock speed. Verify pinout compatibility if switching between package types like WSON and SOP.