GD25WD40EEIGR

Memory IC Overview

The GD25WD40EEIGR is a 4 Mbit Serial NOR Flash memory device manufactured by GigaDevice. It operates within a single power supply voltage range of 1.65 V to 3.6 V and supports Standard SPI and Dual Output interfaces with a maximum clock frequency of 104 MHz for fast read operations. The device features a uniform sector architecture consisting of 512K pages of 256 bytes each, organized into sectors and blocks. It includes advanced security features such as hardware and software write protection, OTP lockable security registers, and a unique ID. The component is designed for industrial temperature ranges and offers high endurance with 100,000 program/erase cycles.

Memory IC Feature Summary

• Supports Standard SPI and Dual Output data transfer modes for flexible interface compatibility
• Provides comprehensive data protection via software block protect bits and hardware WP# pin control
• Integrates 128-bit Unique ID and 512-byte Security Registers with One-Time Programmable (OTP) locks
• Features low power consumption with typical standby current of 0.1 μA and deep power-down mode

Memory IC Applications

• Consumer electronics requiring compact code storage solutions
• Internet of Things (IoT) devices demanding low power operation
• Embedded systems needing reliable firmware storage with hardware write protection
• Wearable technology utilizing small form factor packages like USON-8

Memory IC Procurement Notes

Verify the specific package variant (USON-8 3x2mm) against the design footprint requirements. Confirm that the operating voltage range of 1.65V to 3.6V aligns with the system power rails. Ensure ESD handling procedures are followed due to moisture sensitivity classification. Cross-reference the manufacturer part number GD25WD40E with the suffix EEIGR to confirm exact ordering specifications and revision status before finalizing procurement.

Memory IC Selection Notes

Select this component when a wide voltage range from 1.65V to 3.6V is required for diverse power supply environments. Choose the GD25WD40EEIGR for applications necessitating Dual Output speed improvements over standard SPI without increasing pin count. Consider this part for designs prioritizing hardware-level write protection via the WP# pin alongside software-based block protection mechanisms.

Memory IC Part Context

This device belongs to the GD25WD series of Ultra-Low Power SPI NOR Flash memories from GigaDevice. The series is engineered for battery-powered applications, offering extended battery life through minimal current consumption in both active and standby states. It complements the broader GD25Q and GD25F families by providing a specialized wide-voltage option suitable for modern low-power SoC integrations.

Memory IC Replacement Considerations

GD25WD20EEIGR: Offers 2 Mbit density with identical interface and package characteristics.