GD25Q16CSIG

Memory IC Overview

The GD25Q16CSIG is a 16M-bit (2M x 8) NOR flash memory manufactured by GigaDevice. It operates on a single 3.3V power supply within the 2.7V to 3.6V range. The device supports standard, dual, and quad SPI interfaces with a maximum clock frequency of 120MHz. It features uniform 4KB sectors and 32/64KB blocks, allowing for flexible erase operations. The component includes hardware and software write protection, a 128-bit unique ID, and four 256-byte security registers. It is housed in an SOP-8 package.

Memory IC Feature Summary

• Supports standard, dual, and quad SPI communication modes for high-speed data transfer
• Features uniform sector architecture with 4KB sectors and 32/64KB blocks
• Includes advanced security functions such as a 128-bit unique ID and OTP lockable security registers
• Provides flexible software and hardware write protection mechanisms

Memory IC Applications

• Firmware storage for microcontrollers and embedded systems
• Code execution in place (XIP) applications
• Data logging and configuration storage
• Industrial control system memory

Memory IC Procurement Notes

Verify the specific suffix 'SIG' against the manufacturer's official ordering guide to confirm the exact package type, temperature grade, and tape/reel specifications. Ensure compatibility with the target board's voltage levels and interface requirements before finalizing procurement decisions.

Memory IC Selection Notes

Select this component when a 16M-bit capacity is required with support for quad SPI operations. Consider the industrial temperature range and SOP-8 package constraints. Evaluate the need for specific security features like the unique ID or block protection if applicable to the design.

Memory IC Part Context

This part belongs to the GD25Q16C series of 3.3V uniform sector dual and quad serial flash memories. The series offers various package options including SOP, USON, WSON, and TFBGA. The GD25Q16CSIG specifically denotes the SOP-8 variant within this family.

Memory IC Replacement Considerations

GD25Q16CTIG

Memory IC FAQ

What is the difference between Dual SPI and Quad SPI operation?

Dual SPI uses two I/O lines (IO0 and IO1) for data transfer, doubling the speed compared to standard SPI. Quad SPI utilizes four I/O lines (IO0-IO3), quadrupling the data rate, but requires the Quad Enable (QE) bit in the status register to be set.

How is the memory protected from unintended writes?

Protection is achieved through software commands (WREN/WRDI) and hardware signals (WP#). The Block Protect (BP) bits define protected areas, and the Status Register Protect (SRP) bits can lock the status register via hardware or software methods.