GD25Q16CSJG

Memory IC Overview

The GD25Q16CSJG is a 16M-bit (2M x 8) 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, Dual, and Quad SPI interfaces with a maximum clock frequency of 120MHz. It features uniform 4K-byte sectors and 32/64K-byte blocks. The component is housed in an SOP-8 package (208mil) and is rated for industrial temperature operation from -40°C to +105°C.

Memory IC Feature Summary

• Supports standard, dual, and quad serial peripheral interface operations for flexible data transfer rates.
• Features uniform sector architecture allowing consistent erase sizes across the memory array.
• Includes hardware and software write protection mechanisms via dedicated control pins and status register bits.
• Provides execute-in-place capability for direct code execution from the memory device.

Memory IC Applications

• Firmware storage for microcontrollers and system-on-chips
• Code execution in embedded systems requiring XIP functionality
• Data logging applications in industrial environments
• Configuration storage for consumer electronics

Memory IC Procurement Notes

Verify the specific suffix 'SJG' corresponds to the SOP-8 208mil package and industrial temperature grade (-40°C to +105°C). Confirm that the ordering information matches the required tube packaging format. Ensure compatibility with the host system's voltage levels and SPI command set before integration.

Memory IC Selection Notes

Select this component when a 16M-bit capacity is required with industrial temperature stability. The SOP-8 208mil package suits surface-mount designs needing moderate pin density. Consider the 120MHz speed limit for high-throughput read applications. Verify that the uniform sector size aligns with the firmware partitioning strategy.

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, and WSON formats. The GD25Q16CSJG specifically denotes the industrial grade variant in the SOP-8 208mil configuration, distinguishing it from commercial or automotive grades within the same family.

Memory IC Replacement Considerations

GD25Q16CSJGR: Same electrical specifications but supplied in tape-and-reel packaging instead of tubes.

Memory IC FAQ

How does the Quad Enable (QE) bit affect pin functionality?

When the QE bit is set to 1, the WP# and HOLD# pins function as bidirectional I/O pins (IO2 and IO3) to support Quad SPI operations. When QE is 0, these pins retain their dedicated write protect and hold functions.

What is the mechanism for hardware write protection?

Hardware write protection is enabled by driving the WP# pin low. This action locks the Block Protect (BP) bits and Status Register Protect (SRP) bits in the status register, preventing software modification of the protection settings.