GD25LD20ETIGR

Memory IC Overview

The GD25LD20ETIGR is a 2 Mbit (256K x 8) Serial NOR Flash memory manufactured by GigaDevice. It operates on a single power supply voltage ranging from 1.65 V to 2.0 V and supports Standard SPI and Dual Output interfaces with a maximum clock frequency of 50 MHz. The device features uniform sector architecture with 4 KByte sectors and 32/64 KByte blocks, housed in an 8-lead SOP package (150 mil). It includes hardware and software write protection, security registers, and a 128-bit unique ID.

Memory IC Feature Summary

• Supports standard SPI and dual output data transfer modes for flexible interface compatibility
• Provides comprehensive data protection via software block protect bits and hardware WP# pin control
• Integrates advanced security features including 512-byte security registers with one-time programmable locks
• Features low power consumption with typical standby current of 0.1 μA and deep power-down current of 0.5 μA

Memory IC Applications

• Consumer electronics requiring code storage
• Industrial control systems needing reliable firmware retention
• IoT devices utilizing low-power flash memory
• Embedded applications storing boot code or configuration data

Memory IC Procurement Notes

Verify the specific ordering suffix 'E' corresponds to the required voltage range and package type against the manufacturer's official datasheet. Confirm that the industrial temperature range (-40°C to +85°C) meets your system requirements. Ensure proper handling procedures are followed due to moisture sensitivity classification. Cross-reference the component marking with the manufacturer's identification codes to prevent counterfeit parts.

Memory IC Selection Notes

Select this component when a low-voltage operation between 1.65 V and 2.0 V is mandatory. It is suitable for designs prioritizing low power consumption over high-speed performance, as it supports up to 50 MHz. Consider this part if the application requires robust hardware write protection via the WP# pin and needs a compact SOP-8 footprint.

Memory IC Part Context

This component belongs to the GD25LD series of Serial NOR Flash memories designed for low-voltage applications. It shares architectural similarities with the GD25LD40E but offers half the density at 2 Mbit. The series is characterized by its uniform sector organization and support for both standard and dual SPI modes, targeting cost-sensitive and power-efficient embedded markets.

Memory IC Replacement Considerations

GD25LD20CTIGR: Same capacity and interface but utilizes a different voltage range and package variant.

Memory IC FAQ

How does the hardware write protection function?

Hardware write protection is enabled by driving the WP# pin low. When active, it locks the Block Protect (BP2-BP0) bits and the Status Register Protect (SRP) bit, preventing any changes to the memory protection settings via software commands.

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

The Complement Protect (CMP) bit allows for flexible memory protection configurations. By toggling this bit, users can invert the logic of the Block Protect bits, enabling protection of either the lower or upper portions of the memory array independently.