GD25LD40CKIGR

Memory IC Overview

The GD25LD40CKIGR is a 4M-bit (512KB) uniform sector Serial Flash memory manufactured by GigaDevice. It supports Standard SPI and Dual Output interfaces, with clock frequencies up to 50MHz for fast read operations. The device operates on a single power supply voltage ranging from 1.65V to 2.0V. Key specifications include a typical standby current of 0.1µA, 100,000 program/erase cycles endurance, and 20-year data retention. It features a 256-byte page buffer and includes hardware/software write protection mechanisms.

Memory IC Feature Summary

• Supports Standard SPI and Dual Output data transfer modes
• Includes 128-bit Unique ID for device identification
• Provides flexible software and hardware write protection via WP# pin
• Features low power consumption with deep power-down mode

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Consumer electronics with limited power budgets
• Industrial control devices needing reliable data retention
• IoT modules utilizing dual output interface for speed

Memory IC Procurement Notes

Verify the specific suffix 'KIGR' against official ordering information to confirm package type and termination details. Ensure compatibility with the 1.65V-2.0V operating voltage range. Confirm that the required interface mode (Standard or Dual SPI) aligns with system design constraints. Check for any specific environmental ratings if operating outside standard commercial temperatures.

Memory IC Selection Notes

Select this component when a small footprint and low voltage operation are critical. The Dual Output capability offers higher throughput compared to standard SPI without additional pins. Consider the uniform sector architecture for simplified firmware management. Ensure the host controller supports the required command set and timing parameters for reliable communication.

Memory IC Part Context

This part belongs to the GD25LD20C/40C series of uniform sector Serial Flash memories. It shares architectural similarities with other members in the LD family, such as the GD25LD20C, but offers double the density. The series is designed for applications requiring robust data protection and low power usage in compact packages like USON8 or SOP8.

Memory IC Replacement Considerations

GD25LD20CKIGR: Offers 2M-bit capacity with identical interface and pinout. Verify if reduced density meets application requirements. Other GD25Q series parts may offer different voltage ranges or performance characteristics but require interface adaptation.