GD25Q20CTIGR

Memory IC Overview

The GD25Q20CTIGR is a 2M-bit (256K 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 4KB sectors and 32/64KB blocks. The component is housed in an 8-lead SOP package (150mil width) and is designed for industrial temperature ranges from -40°C to +85°C.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI modes for flexible data transfer rates up to 480Mbits/s.
• Features uniform sector architecture allowing granular protection via software or hardware write protect pins.
• Includes advanced security mechanisms such as 128-bit unique ID and four 256-byte OTP security registers.
• Enables Execute In Place (XiP) operation with continuous read capabilities to optimize system cache usage.

Memory IC Applications

• Code storage for microcontrollers and embedded systems
• Firmware storage in consumer electronics and IoT devices
• BIOS and boot code storage in industrial control systems

Memory IC Procurement Notes

Verify the specific suffix 'TIGR' corresponds to the SOP8 150mil package and industrial temperature grade (-40°C to +85°C). Confirm that the ordering information matches the manufacturer's current valid part numbers list, as designations may change. Ensure compatibility with the required voltage range and interface mode before integration.

Memory IC Selection Notes

Select this component when a 2M-bit capacity is required with uniform sector erase capabilities. It is suitable for designs needing high-speed Quad SPI access and robust data protection features. Consider the SOP8 150mil package constraints and industrial temperature requirements during PCB layout and thermal management planning.

Memory IC Part Context

This part belongs to the GD25Q20C series of 3.3V Uniform Sector Dual and Quad Serial Flash memories. The series is characterized by its support for multiple SPI modes and flexible protection schemes. It is part of GigaDevice's broader portfolio of NOR flash solutions targeting various density and performance requirements.

Memory IC Replacement Considerations

Check for direct substitutes within the GD25Q20C family, such as GD25Q20CSIGR, noting potential differences in package width (e.g., 208mil vs 150mil). Verify pinout compatibility and electrical specifications before substitution.

Memory IC FAQ

How does the Quad Enable (QE) bit affect the WP# and HOLD# pins?

When the QE bit is set to 1, the WP# and HOLD# pins function as dedicated data I/O pins (IO2 and IO3), disabling their original hold and write-protect functions.

What is the purpose of the Hold# signal?

The Hold# signal pauses serial communication without interrupting ongoing program or erase operations. It requires CS# to remain low and SCLK to be low to initiate and end the hold state.