GD25Q20ETJGR

Memory IC Overview

The GD25Q20ETJGR is a 2M-bit (256K x 8) Serial NOR Flash memory manufactured by GigaDevice. It supports Standard, Dual, and Quad SPI interfaces with a maximum clock frequency of 133 MHz for fast read operations. The device operates on a single power supply voltage ranging from 2.7V to 3.6V. It features uniform sector architecture with 4K-byte sectors and 32/64K-byte blocks. Key electrical characteristics include a typical standby current of 11μA and deep power-down current of 1μA. The memory organization allows for page programming of up to 256 bytes.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI modes for flexible data transfer rates
• Includes software and hardware write protection mechanisms via Block Protect bits and WP# pin
• Features advanced security with 128-bit Unique ID and OTP-locked Security Registers
• Enables Execute In Place (XiP) operation with continuous read capabilities

Memory IC Applications

• Code storage for microcontrollers and system-on-chips
• Firmware storage in consumer electronics devices
• Data logging and configuration storage in industrial systems
• BIOS or boot code storage in embedded computing platforms

Memory IC Procurement Notes

Verify the specific package variant (SOP8 or USON8) and temperature grade corresponding to the 'TJGR' suffix against the manufacturer's official ordering guide. Confirm that the required Quad Enable (QE) bit configuration aligns with your system design, as it affects pin functionality. Ensure compatibility with the host controller's SPI mode support for Dual or Quad operations if higher speeds are intended.

Memory IC Selection Notes

Select this component when a 2M-bit capacity is required with high-speed Quad SPI access up to 133 MHz. It is suitable for designs needing robust data protection through hardware WP# control and software block locking. Consider this part for applications requiring low power consumption in standby and deep power-down modes. Verify that the operating voltage range of 2.7V to 3.6V matches the system power rails.

Memory IC Part Context

This part belongs to the GD25Q20E series of Uniform Sector Dual and Quad Serial Flash memories. The series is designed for high-performance applications requiring reliable non-volatile storage. It shares architectural similarities with other members like the GD25Q40E but offers half the density. The product line emphasizes flexibility through multiple interface modes and comprehensive security features.

Memory IC Replacement Considerations

GD25Q20CTIGR

Memory IC FAQ

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

When the QE bit is set to 1, the HOLD# and WP# pins function as bidirectional I/O pins (IO3 and IO2). When QE is 0, these pins retain their dedicated Hold and Write Protect functions.

What is the purpose of the Dummy Configuration (DC) bit?

The DC bit configures the number of dummy cycles inserted between address transmission and data output. This ensures proper timing for high-speed read commands at frequencies up to 133 MHz.