GD25Q16CSIGR

Memory IC Overview

The GD25Q16CSIGR is a 16M-bit (2M x 8) NOR flash memory manufactured by GigaDevice. It operates on a single 3.3V power supply within 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 sector architecture with 4K-byte sectors and 32/64K-byte blocks. The component is housed in an SOP-8 package and is rated for industrial temperature ranges from -40°C to +85°C.

Memory IC Feature Summary

• Supports standard, dual, and quad serial peripheral interface operations for flexible data transfer rates.
• Provides software and hardware write protection mechanisms including block protect bits and WP# pin control.
• Features advanced security capabilities with unique identification and programmable security registers.
• Enables execute-in-place operation allowing direct code execution from the memory device.

Memory IC Applications

• Firmware storage for embedded systems
• Code execution in microcontroller-based designs
• Industrial control system data logging
• Consumer electronics configuration storage

Memory IC Procurement Notes

Verify the specific suffix 'SIGR' corresponds to the SOP-8 208mil package and tape-and-reel delivery format. Confirm the industrial temperature grade (-40°C to +85°C) matches the application requirements. Check current lifecycle status as some variants may be marked as not recommended for new designs. Ensure ESD handling procedures are followed during assembly.

Memory IC Selection Notes

Select this component when a 16M-bit capacity is required with strict industrial temperature stability. The SOP-8 package offers a balance between pin count and board space. Consider the 120MHz speed limit for high-throughput applications. Verify that the host controller supports the necessary Dual or Quad SPI commands if higher bandwidth is needed beyond standard SPI.

Memory IC Part Context

This part belongs to the GD25Q16C series of 3.3V Uniform Sector Dual and Quad Serial Flash memories. The series is designed for high-performance applications requiring reliable non-volatile storage. The GD25Q16C family provides various packaging options to suit different PCB layout constraints while maintaining consistent electrical performance across the product line.

Memory IC Replacement Considerations

GD25Q16CSJGR: Same capacity and interface but rated for extended industrial temperature range up to +105°C in SOP-8 package.

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 achieved by driving the WP# pin low. This locks the Block Protect (BP) bits and Status Register Protect (SRP) bits, preventing any changes to the memory array or status register settings via software commands.