GD25Q16ESJGR

Memory IC Overview

The GD25Q16ESJGR is a 16 Mbit NOR flash memory device manufactured by GigaDevice. It utilizes an 8-SOP package and operates on a single power supply voltage ranging from 2.7 V to 3.6 V. The component supports standard, dual, and quad SPI interfaces with a maximum clock frequency of 133 MHz. It features a uniform sector architecture with 4 KByte sectors and 32/64 KByte blocks. The device is designed for surface mount installation and functions within a temperature range of -40°C to +105°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 bits and WP# pin control
• Includes advanced security features such as a unique ID and programmable security registers with OTP locks
• Enables execute in place operation with continuous read capabilities to reduce instruction fetch latency

Memory IC Applications

• Firmware storage for microcontrollers and system-on-chip devices
• Code execution directly from flash memory (XiP)
• Data logging and configuration parameter storage
• BIOS or boot code storage in embedded systems

Memory IC Procurement Notes

Verify the specific suffix JGR corresponds to the SOP-8 package and industrial temperature grade (-40°C to +105°C) as defined in the manufacturer's ordering guide. Confirm that the Quad Enable bit configuration aligns with your system's pin usage, as enabling Quad mode repurposes the WP# and HOLD# pins. Ensure static discharge precautions are followed during handling due to the sensitivity of CMOS components.

Memory IC Selection Notes

Select this part when a 16 Mbit capacity is required with high-speed read performance up to 133 MHz. The SOP-8 package is suitable for applications where board space allows for larger footprints compared to USON options. Verify that the operating voltage range of 2.7 V to 3.6 V matches the target system's power rails. Consider the industrial temperature rating if the deployment environment exceeds commercial limits.

Memory IC Part Context

This component belongs to the GD25Q16E series of uniform sector dual and quad serial flash memories. The series offers varying package options including SOP and USON formats. The ESJGR designation specifically identifies the SOP-8 variant with extended temperature capabilities. It shares core architectural features with other members of the GD25Q family, differing primarily in physical packaging and thermal specifications.

Memory IC Replacement Considerations

GD25Q16ETJGR: Identical electrical specifications and SOP-8 package but rated for commercial temperature range (-40°C to +85°C).

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 are repurposed as bidirectional I/O pins (IO2 and IO3) for Quad SPI operations. In this state, the dedicated Hold function is disabled.

What is the purpose of the CMP bit in the status register?

The Complement Protect (CMP) bit modifies the behavior of the Block Protect bits (BP4-BP0), allowing for different memory protection configurations, such as protecting the lower portion of the array instead of the upper portion.