GD25Q256EFIRR

Memory IC Overview

The GD25Q256EFIRR is a 256M-bit (32M x 8) NOR flash memory manufactured by GigaDevice. It operates on a single power supply voltage ranging from 2.7V to 3.6V and supports standard, dual, and quad SPI interfaces with a maximum clock frequency of 133MHz. The device features uniform sector architecture with 4K-byte sectors and 32/64K-byte blocks. It includes advanced security features such as hardware/software write protection, a 128-bit unique ID, and three 2048-byte security registers with OTP locks. Endurance is rated for a minimum of 100,000 program/erase cycles with typical data retention of 20 years.

Memory IC Feature Summary

• Supports standard, dual, and quad SPI modes for flexible data transfer speeds up to 532Mbits/s in Quad I/O mode.
• Provides comprehensive data protection via software block protect bits, hardware WP# pin locking, and dedicated security registers with one-time programmable locks.
• Enables execute-in-place (XiP) operations with continuous read wrap functionality to reduce instruction fetch latency.
• Includes a 128-bit unique identifier per device and serial flash discoverable parameters (SFDP) for system configuration.

Memory IC Applications

• Code storage for embedded systems requiring execute-in-place capabilities
• Firmware storage for consumer electronics and industrial control devices
• Data logging applications utilizing the high endurance and long data retention specifications

Memory IC Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the required voltage range and interface mode. Confirm moisture sensitivity level handling procedures during assembly. Cross-reference the part number with the latest revision history to ensure no functional changes have occurred since the design inception.

Memory IC Selection Notes

Select this component when a 256M-bit capacity is required with a 16-pin SOP package. It is suitable for designs needing high-speed read performance up to 133MHz and robust data protection mechanisms. Consider the uniform sector architecture for simplified erase management. Verify that the operating temperature range of -40°C to +85°C meets the environmental requirements of the target application.

Memory IC Part Context

This part belongs to the GD25Q256E series of Dual and Quad Serial Flash memories. The series is characterized by its uniform sector architecture and support for multiple SPI modes. It is designed for high-reliability applications requiring fast program/erase speeds and advanced security features. The EFIRR suffix specifically denotes the 16-lead SOP package variant within this product family.

Memory IC Replacement Considerations

GD25Q256DFIGR: Verified substitute with identical 256M-bit capacity and 16-SOP package, though it operates at a lower maximum clock frequency of 104 MHz compared to the 133 MHz of the EFIRR variant.