W971GG8NB-18

Memory IC Overview

The W971GG8NB-18 is a 1 Gbit DDR2 SDRAM organized as 16M words by 8 banks by 8 bits. It supports transfer rates up to 1066 Mbps compliant with the DDR2-1066 specification (6-6-6). The device operates within a voltage range of 1.7 V to 1.9 V and functions at temperatures from 0°C to 85°C. It utilizes a 60-ball WBGA package measuring 8x9.5 mm.

Memory IC Feature Summary

• Supports double data rate architecture for high-speed data transfers
• Features differential clock inputs and source-synchronous I/O alignment
• Includes programmable additive latency and on-die termination
• Provides auto-refresh and self-refresh modes for power management

Memory IC Applications

• Embedded systems requiring parallel memory interfaces
• Industrial control equipment
• Consumer electronics terminals

Memory IC Procurement Notes

Verify the specific speed grade suffix against project requirements, as the -18 designation indicates compliance with DDR2-1066 specifications. Confirm that the operating temperature range aligns with the commercial grade limits defined in the datasheet. Ensure compatibility with SSTL_18 interface standards during system design validation.

Memory IC Selection Notes

Select this component when a 1 Gbit capacity with an 8-bit data width is required. The 60-ball WBGA package suits applications with space constraints. Verify that the system supports the necessary initialization sequence, including DLL reset and OCD calibration, before deployment.

Memory IC Part Context

This part belongs to the W971GG8NB family of DDR2 SDRAMs manufactured by Winbond Electronics. The series includes variants supporting different speeds such as DDR2-800 and DDR2-667. The -18 suffix specifically denotes the highest performance tier within this product line.

Memory IC Replacement Considerations

Direct substitutes include other parts within the W971GG8NB family, such as the -25 or -3 speed grades, provided the system timing requirements are adjusted accordingly.