GD25WD20EEIGR

Memory IC Overview

The GD25WD20EEIGR is a 2M-bit Serial NOR Flash memory device manufactured by GigaDevice. It supports Standard SPI and Dual Output interfaces, enabling data transfer speeds up to 160 Mbits/s in dual mode. The device operates on a single power supply voltage ranging from 1.65V to 3.6V. It features a uniform sector architecture with 4K-byte sectors and 32/64K-byte blocks. Key electrical characteristics include a typical standby current of 0.1μA and deep power-down current of 0.1μA. The memory organization consists of 256K pages of 256 bytes each.

Memory IC Feature Summary

• Supports Standard SPI and Dual Output modes for flexible interface compatibility
• Provides hardware and software write protection mechanisms including WP# pin control
• Includes advanced security features such as 128-bit Unique ID and OTP Security Registers
• Ensures high reliability with 100,000 program/erase cycles endurance and 20-year data retention

Memory IC Applications

• Consumer electronics requiring code storage
• Industrial control systems
• Embedded applications needing non-volatile memory
• IoT devices with low power constraints

Memory IC Procurement Notes

Verify the specific package variant (SOP8 or USON8) matches the design footprint, as the 'E' suffix indicates specific packaging options within the GD25WD series. Confirm voltage range requirements align with the 1.65V-3.6V specification. Ensure ESD handling procedures are followed during assembly due to the sensitive nature of flash memory components.

Memory IC Selection Notes

Select this component when a small capacity (2M-bit) flash is needed with dual I/O speed benefits. It is suitable for designs requiring wide voltage operation down to 1.65V. Consider the uniform sector architecture for simplified erase management compared to mixed sector devices. Verify that the required package type (SOP8 or USON8) is available for the target PCB layout.

Memory IC Part Context

This part belongs to the GD25WD series of Serial NOR Flash memories from GigaDevice. The series is characterized by its wide voltage support (1.65V-3.6V) and dual output capability. It complements other densities like the GD25WD40E (4M-bit) in the same family, offering similar feature sets scaled to different capacities.

Memory IC Replacement Considerations

GD25WD20CEIGR

Memory IC FAQ

What is the difference between Standard SPI and Dual Output modes?

Standard SPI uses separate input (SI) and output (SO) pins, while Dual Output mode utilizes both IO0 (SI) and IO1 (SO) simultaneously to transfer data at twice the rate.

How is the memory protected against accidental writes?

Protection is achieved via software commands (Block Protect bits) and hardware control using the WP# pin, which can lock the status register and specific memory sectors.