GD25D40CTIGR

Memory IC Overview

The GD25D40CTIGR is a 4 Mbit (512K x 8) SPI NOR Flash memory manufactured by GigaDevice. It operates on a single 3.3V power supply with a voltage range of 2.7V to 3.6V. The device supports standard SPI and Dual Output modes, achieving clock frequencies up to 104 MHz for fast read operations. It features uniform sector architecture with 4K-byte sectors and 32/64K-byte blocks. The component includes hardware and software write protection, a 128-bit unique ID, and is housed in an 8-lead SOP package.

Memory IC Feature Summary

• Supports Standard SPI and Dual Output data transfer modes
• Features uniform sector architecture with flexible block sizes
• Includes hardware and software write protection mechanisms
• Provides advanced security with a unique 128-bit identification number

Memory IC Applications

• Code storage for microcontrollers and processors
• XIP (Execute In Place) applications
• Firmware storage in embedded systems
• BIOS and boot code storage

Memory IC Procurement Notes

Verify the specific suffix 'TIGR' corresponds to the SOP-8 150mil package and tape-and-reel shipping format as defined in the manufacturer's ordering guide. Confirm that the industrial temperature range (-40°C to +85°C) aligns with your system requirements. Ensure compatibility with the 3.3V I/O levels and check for any RoHS compliance documentation required for your region.

Memory IC Selection Notes

Select this component when a 4 Mbit capacity with uniform sector organization is required. It is suitable for designs needing dual-output speed improvements over standard SPI. Consider the SOP-8 package constraints and the 2.7V to 3.6V operating voltage range. Verify that the 104 MHz clock frequency meets the throughput needs of the host controller interface.

Memory IC Part Context

This part belongs to the GD25D40C series of 3.3V Uniform Sector Standard and Dual Serial Flash memories. The series offers high reliability with 100,000 program/erase cycles and 20-year data retention. It is designed for cost-effective, high-performance code storage solutions in consumer electronics and industrial applications requiring non-volatile memory.

Memory IC Replacement Considerations

GD25D40CTI (Same package, different reel option)

Memory IC FAQ

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

Standard SPI uses four signals (SCLK, CS#, SI, SO), while Dual Output mode utilizes IO0 and IO1 pins to transfer data at twice the rate, supporting speeds up to 160 Mbits/s.

How is write protection implemented in this device?

Write protection is achieved through software via Block Protect (BP) bits in the status register and hardware via the WP# pin, which can lock the status register and protected memory areas.