GD55LB01GEYIGY

Memory IC Overview

The GD55LB01GEYIGY is a 1 Gbit SPI NOR Flash memory device manufactured by GigaDevice. It operates within a supply voltage range of 1.65 V to 2 V and supports a maximum clock frequency of 166 MHz. The component utilizes an 8-bit data bus width and features a WSON-8 package for surface mount installation. It is designed for industrial temperature ranges, functioning between -40°C and +85°C.

Memory IC Feature Summary

• Supports high-speed SPI interface with frequencies up to 166 MHz
• Operates on low voltage supply ranging from 1.65 V to 2 V
• Includes hardware reset and write protection capabilities
• Features security registers with OTP locks

Memory IC Applications

• Industrial control systems
• Consumer electronics firmware storage
• IoT device code storage

Memory IC Procurement Notes

Verify the specific suffix 'GYIGY' against the manufacturer's official datasheet to confirm pinout and package dimensions. Ensure the 1.65V–2V operating voltage aligns with your system power rails. Confirm the WSON-8 footprint matches your PCB layout requirements before finalizing procurement.

Memory IC Selection Notes

Select this part when a 1 Gbit density is required with a strict 2V maximum supply constraint. The 166 MHz speed suits applications needing fast boot times. Compare against the GD55B series if a wider 2.7V–3.6V voltage range is acceptable, as that variant may offer different availability or thermal characteristics.

Memory IC Part Context

This component belongs to the GD55L family of SPI NOR Flash memories. The 'L' designation typically indicates the low-voltage variant (1.65V–2V), distinguishing it from standard voltage parts. It shares architectural similarities with other GD55 series devices but is optimized for lower power consumption in portable or battery-operated environments.

Memory IC Replacement Considerations

The GD55B01GEYIGY is a related part number within the same product family. However, it operates at 2.7V–3.6V, which is incompatible with the 2V limit of the GD55LB01GEYIGY. Direct substitution requires verifying voltage compatibility.