GD25WD40CTIGR – Serial NOR Flash – GigaDevice

The GigaDevice GD25WD40CTIGR is a 4Mbit (512K x 8) wide-voltage SPI NOR Flash memory in an industrial-temperature SOP-8 (150mil) package, supporting a 1.65V to 3.6V supply with Single and Dual I/O. Available now for RFQ from Pacific Component Xchange.

The GigaDevice GD25WD40CTIGR is a 4Mbit (4Mb) serial SPI NOR Flash memory device from the GD25WD wide-voltage product series. Organized as 512K x 8 bits, it is engineered for low-power, space-constrained embedded designs that require reliable non-volatile code and data storage across a broad supply range. The wide 1.65V to 3.6V operating voltage makes it well suited to both 1.8V and 3.3V systems, while the industrial temperature rating supports demanding deployment environments. This “TIGR” variant ships in a SOP-8 150mil package on tape-and-reel.

Key Features

• Memory type: Serial SPI NOR Flash
• Density: 4 Mbit (4Mb), organized as 512K x 8
• Supply voltage: 1.65V to 3.6V (wide voltage range)
• Interface: Serial Peripheral Interface (SPI), Single I/O and Dual I/O
• Max clock frequency: Up to 100 MHz (Single I/O); 80 MHz (Dual I/O)
• Package: SOP-8, 150mil body
• Operating temperature: Industrial, -40°C to +85°C
• Security: 128-bit Unique ID; hardware write protection (WP#)
• Packing: Tape and Reel (“R” suffix)

Applications

• IoT and wearable devices requiring low-power, low-voltage storage
• Microcontroller code-shadowing and boot firmware storage
• Wireless modules (BLE, Wi-Fi, sub-GHz)
• Industrial sensors and metering
• Consumer electronics and portable equipment
• Networking and connectivity peripherals

Why Source GD25WD40CTIGR from Pacific Component Xchange

The GD25WD40C series is listed by GigaDevice as Not Recommended for New Designs (NRND), which makes secure, authentic supply increasingly difficult through standard authorized channels. Pacific Component Xchange is an independent distributor specializing in hard-to-find and obsolete memory. We currently hold inventory of the GD25WD40CTIGR and support customers who need to keep existing designs in production.

Every order is backed by our commitment to authenticity, inspection, and quality control to protect your build from counterfeit risk. With global shipping and responsive sourcing support, we help engineering and procurement teams secure end-of-life and allocation-constrained components on schedule.

Request a quote for GD25WD40CTIGR today. Submit an RFQ with your target quantity and delivery requirements, and our team will respond promptly with availability and pricing.