GD25Q20COIGR

Memory IC Overview

The GD25Q20COIGR is a 2M-bit (256K x 8) NOR flash memory IC 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 120 MHz. It features uniform sector architecture with 4KB sectors and 32/64KB blocks. The component is housed in an 8-TSSOP package and is rated for industrial operating temperatures ranging 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 and status register lock-down.
• Features advanced security capabilities such as unique identification and programmable security registers.
• Enables execute-in-place operation with continuous read modes to reduce system latency.

Memory IC Applications

• Code storage for microcontrollers and system-on-chips
• BIOS and firmware storage in embedded systems
• Data logging and configuration parameter retention
• Industrial control system memory modules

Memory IC Procurement Notes

Verify the specific suffix OIGR corresponds to the TSSOP-8 package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status through official manufacturer documentation or certified distributor declarations prior to integration into production designs.

Memory IC Selection Notes

Select this component when a 2M-bit capacity with uniform sector erase architecture is required. Ensure the design supports 3.3V logic levels and utilizes SPI interfaces compatible with up to 120MHz clock speeds. Verify that the TSSOP-8 footprint aligns with the PCB layout constraints and thermal requirements of the target application environment.

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 high-speed read capabilities and low power consumption modes. It is designed for applications requiring reliable non-volatile storage with flexible protection schemes and secure data handling features.

Memory IC Replacement Considerations

GD25Q20CSIGR: Same electrical specifications but packaged in SOP-8 instead of TSSOP-8.

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 High Performance Mode (HPM)?

High Performance Mode allows the device to operate at higher clock frequencies than the standard fast read mode. The HPF bit in the status register indicates whether the device is currently in this mode.