GD25D40ETIGR

Memory IC Overview

The GD25D40ETIGR is a 4M-bit (512K x 8) SPI NOR Flash memory manufactured by GigaDevice. It operates within a voltage range of 2.7V to 3.6V and supports standard SPI and Dual Output interfaces with a maximum clock frequency of 104MHz for fast read operations. The device features uniform sector architecture with 4K-byte sectors and 32/64K-byte blocks. It includes hardware and software write protection, security registers with OTP locks, and a 128-bit unique ID. The component is available in SOP8 and USON8 packages and is rated for industrial temperatures from -40°C to +85°C.

Memory IC Feature Summary

• Supports Standard SPI and Dual Output data transfer modes
• Features uniform sector and block architecture for flexible memory management
• Includes advanced security features such as OTP-locked security registers and a unique device ID
• Provides hardware and software write protection mechanisms

Memory IC Applications

• Code storage for embedded systems
• Data logging applications
• Firmware storage for microcontrollers

Memory IC Procurement Notes

Verify the specific package variant (SOP8 or USON8) required for your design, as the base model number may correspond to different physical footprints. Confirm the temperature grade matches your operational environment requirements. Ensure compatibility with the host controller's SPI interface speed and voltage levels before integration.

Memory IC Selection Notes

Select this component when a 4M-bit capacity is required with support for dual I/O operations to enhance read throughput. Consider the industrial temperature range if the application operates in extreme environments. Evaluate the package options based on board space constraints and soldering capabilities.

Memory IC Part Context

This part belongs to the GD25D series of Serial NOR Flash memories from GigaDevice. The series is designed for high-performance code storage applications, offering a balance of speed, reliability, and low power consumption. It is suitable for various consumer and industrial electronics requiring non-volatile data retention.

Memory IC Replacement Considerations

GD25D40CEIGR

Memory IC FAQ

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

Standard SPI uses four signals (SCLK, CS#, SI, SO) for data transfer, while Dual Output mode utilizes two bidirectional data lines (IO0 and IO1) to transfer data at twice the rate of standard SPI.

How is write protection implemented in this device?

Write protection can be achieved through software using Block Protect bits in the Status Register or via hardware by asserting the WP# pin low to lock the Status Register and protected memory areas.