GD25LD40EEIGR

Memory IC Overview

The GD25LD40EEIGR is a 4M-bit Serial NOR Flash memory device manufactured by GigaDevice. It supports Standard SPI and Dual Output interfaces with a maximum clock frequency of 50 MHz for fast read operations. The device operates on a single power supply voltage ranging from 1.65 V to 2.0 V. It features a uniform sector architecture with 4K-byte sectors and 32/64K-byte blocks. The memory organization consists of 512K x 8 bits, arranged in pages of 256 bytes. The component is available in SOP8, USON8 (1.5x1.5mm), USON8 (3x2mm), and USON6 packages.

Memory IC Feature Summary

• Supports Standard SPI and Dual Output data transfer modes
• Provides flexible software and hardware write protection mechanisms
• Includes advanced security features such as unique identification and security registers

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Consumer electronics utilizing low-voltage power supplies
• Industrial control applications needing reliable data retention

Memory IC Procurement Notes

Verify the specific package variant required, as the base model GD25LD40E is available in multiple physical footprints including SOP8 and various USON sizes. Confirm that the system design accommodates the 1.65V to 2.0V operating voltage range. Ensure compatibility with standard SPI or Dual Output controller interfaces before finalizing procurement specifications.

Memory IC Selection Notes

Select this component when a 4M-bit capacity is required within a strict 2.0V maximum voltage constraint. It is suitable for designs prioritizing low standby current and robust data protection features. Consider the available package options based on PCB space limitations and thermal requirements. Verify interface speed requirements against the 50 MHz specification.

Memory IC Part Context

This part belongs to the GD25LD40E series, which includes variants with different package types and temperature ratings. The 'EE' suffix typically denotes a specific industrial temperature range and packaging configuration within the manufacturer's lineup. Other series members may offer Quad I/O capabilities or wider voltage ranges, distinguishing them from this dual-output focused model.

Memory IC Replacement Considerations

GD25LD40CEIGR

Memory IC FAQ

What is the difference between Standard SPI and Dual Output modes?

Standard SPI uses separate pins for input (SI) and output (SO), while Dual Output mode utilizes both IO0 and IO1 pins simultaneously to transfer data at twice the rate.

How is write protection implemented in this device?

Write protection is achieved through software commands setting Block Protect bits in the Status Register, or via the hardware WP# pin which can lock the status register and protected areas.