GD25WD40EKIGR

Memory IC Overview

The GD25WD40EKIGR is a 4M-bit Serial NOR Flash memory manufactured by GigaDevice. It supports Standard SPI and Dual Output interfaces, enabling data transfer speeds up to 160 Mbits/s. The device features a uniform sector architecture with 4K-byte sectors and 32/64K-byte blocks. It operates on a single power supply voltage ranging from 1.65V to 3.6V. Key specifications include a typical standby current of 0.1μA, minimum 100,000 program/erase cycles endurance, and 20-year data retention. The memory organization consists of 512K x 8 bits.

Memory IC Feature Summary

• Supports Standard SPI and Dual Output modes for flexible interface compatibility
• Features uniform sector architecture with hardware and software write protection capabilities
• Includes advanced security features such as 128-bit Unique ID and OTP-locked Security Registers
• Provides low power consumption with deep power-down mode support

Memory IC Applications

• Consumer electronics firmware storage
• Industrial control system code execution
• IoT device application hosting

Memory IC Procurement Notes

Verify the specific package variant (USON8 or SOP8) against design requirements, as the base part number may correspond to multiple physical packages. Confirm availability status directly with authorized distributors, as supply constraints may affect lead times. Ensure ESD handling procedures are followed during assembly due to the sensitivity of CMOS flash memory components.

Memory IC Selection Notes

Select this component when dual-speed read performance is required alongside standard SPI compatibility. The wide voltage range suits battery-powered applications. Verify that the target PCB layout accommodates the specific USON8 or SOP8 footprint associated with the ordered suffix. Ensure the host controller supports the Dual Output command set for optimal throughput.

Memory IC Part Context

This part belongs to the GD25WD series of Uniform Sector Standard and Dual Serial Flash memories. It shares architectural similarities with the GD25WD20E but offers double the density at 4M-bits. The series is designed for cost-sensitive applications requiring reliable non-volatile storage with enhanced security features compared to standard SPI-only counterparts.

Memory IC Replacement Considerations

GD25WD20EKIGR: Offers similar features but with 2M-bit capacity. GD25Q40EKIGR: Supports Quad I/O instead of Dual Output, providing higher bandwidth but requiring different interface logic.