GD25Q20CSIGR

Memory IC Overview

The GD25Q20CSIGR is a 2M-bit (256K x 8) non-volatile 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 for fast read operations. It features uniform sector architecture with 4KB sectors and 32/64KB 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 SPI communication modes for flexible data transfer rates.
• Features software and hardware write protection mechanisms including block protect bits and WP# pin control.
• Includes advanced security features such as 128-bit unique ID and programmable security registers.
• Enables execute-in-place (XiP) operation with continuous read capabilities to reduce latency.

Memory IC Applications

• Code storage for microcontrollers and system-on-chips requiring direct execution.
• Industrial control systems operating within specified temperature ranges.
• Consumer electronics utilizing serial flash for firmware and configuration data.
• Embedded applications needing reliable non-volatile data retention.

Memory IC Procurement Notes

Verify the specific suffix 'GR' indicates tape and reel packaging when sourcing components. Confirm the 'C' designation aligns with the required industrial temperature grade (-40°C to +85°C). Ensure compatibility with SOP-8 208mil footprint requirements for PCB layout. Cross-reference manufacturer part numbers to avoid confusion with similar density variants or different package styles within the GD25Q20C series.

Memory IC Selection Notes

Select this component for designs requiring uniform sector erase capabilities and high-speed quad I/O access. Consider the 120MHz clock limit when designing high-frequency SPI buses. Evaluate the need for hardware write protection via the WP# pin if data integrity against accidental writes is critical. Ensure the host controller supports the necessary command set for dual and quad mode operations.

Memory IC Part Context

This part belongs to the GD25Q20C series of 3.3V uniform sector dual and quad serial flash memories. The series offers various package options including SOP-8, TSSOP-8, and USON-8. It is designed for applications demanding high reliability, low power consumption, and robust data protection features across industrial and commercial environments.

Memory IC Replacement Considerations

GD25Q20CTIGR

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 dedicated data I/O pins (IO2 and IO3) to support Quad SPI operations. When QE is 0, these pins retain their original write protect and hold functions.

What is the purpose of the Hold# signal?

The Hold# signal pauses serial communications without resetting internal logic. It stops data shifting but allows ongoing program or erase cycles to complete. It requires CS# to remain low and SCLK to be low to activate.