GD25Q40CT2GR

Memory IC Overview

The GD25Q40CT2GR is a 4 Mbit NOR flash memory component manufactured by GigaDevice. It features a storage organization of 512 k x 8 bits and operates within a voltage range of 2.7 V to 3.6 V. The device supports Dual/Quad SPI interfaces with a maximum clock frequency of 133 MHz. It is housed in an SOP-8 package designed for SMD/SMT installation. The operational temperature range spans from -40°C to +125°C, classifying it as an industrial-grade part. Active read current is specified at a maximum of 20 mA.

Memory IC Feature Summary

• Supports standard SPI, dual I/O, and quad I/O serial communication protocols for flexible data transfer modes.
• Features uniform sector architecture with 4 KB sectors and 32 KB or 64 KB blocks for consistent erase operations.
• Includes hardware write protection via the WP# pin and software-configurable block protection schemes.
• Provides execute-in-place (XIP) capability allowing direct code execution from the memory device.

Memory IC Applications

• Industrial control systems requiring wide temperature tolerance
• Consumer electronics firmware storage
• IoT device code and data retention
• Embedded systems boot code storage

Memory IC Procurement Notes

Verify the specific suffix T2GR against the manufacturer's latest datasheet to confirm package dimensions and tape-and-reel specifications. Ensure the design accommodates the SOP-8 footprint and thermal requirements for the +125°C maximum operating limit. Confirm RoHS compliance status through official certification documents prior to integration into regulated assemblies.

Memory IC Selection Notes

Select this component when a 4 Mbit capacity is required with high-speed Quad SPI access up to 133 MHz. The extended industrial temperature range up to +125°C makes it suitable for harsh environments where standard commercial parts would fail. Verify that the system power supply remains stable between 2.7 V and 3.6 V to ensure reliable operation and data integrity during read and write cycles.

Memory IC Part Context

This part belongs to the GD25Q40C series of 3.3V uniform sector dual and quad serial flash memories. The series is designed for applications needing reliable non-volatile storage with high performance. GigaDevice manufactures these devices using advanced process technologies to ensure longevity and data retention characteristics suitable for long-term embedded deployments.

Memory IC Replacement Considerations

GD25Q40CEIGR: USON-8 package, industrial temp (-40 to +105 C), 120 MHz max clock. GD25Q40CSIGR: SOP-8 package, commercial temp (-40 to +85 C), 104 MHz max clock. Verify pin compatibility and electrical limits before substitution.