W631GU8MB11I TR

Memory IC Overview

The W631GU8MB11I TR is a 1G-bit DDR3L SDRAM organized as 16M words x 8 banks x 8 bits. It supports speeds up to 1866 MT/s (DDR3L-1866) with CL-13-13-13 timing. Operating voltage ranges from 1.283V to 1.45V, compatible with 1.5V. The device features an asynchronous reset, ZQ calibration, and programmable on-die termination. It operates within -40°C to +95°C and is packaged in a 78-ball VFBGA.

Memory IC Feature Summary

• Supports double data rate architecture with eight internal banks for concurrent operations.
• Includes dynamic ODT mode and ZQ calibration for improved signal integrity.
• Features write leveling and Multi Purpose Register (MPR) for system timing calibration.
• Provides asynchronous reset functionality for power-up initialization sequences.

Memory IC Applications

• Industrial control systems requiring extended temperature stability
• Automotive electronics applications
• Embedded memory solutions

Memory IC Procurement Notes

Verify the specific speed grade suffix '11I' corresponds to the required 1866 MT/s performance and industrial temperature range (-40°C to +95°C). Confirm that the trailing 'TR' indicates tape-and-reel packaging rather than tray format. Ensure compatibility with the host controller's DDR3L signaling requirements before procurement.

Memory IC Selection Notes

Select this component when a 1Gb density with 8-bit width is required for high-speed data processing. The industrial temperature rating makes it suitable for harsh environments. Consider the 78-ball VFBGA package dimensions for PCB layout constraints. Verify that the supporting circuitry can handle the differential clock inputs and source-synchronous data strobes.

Memory IC Part Context

This part belongs to the W631GU8MB family of low-voltage DDR3L SDRAMs. It shares architectural similarities with other variants like the W631GU8NB series but differs in speed grades and operating temperatures. The '11I' designation specifically identifies the 1866 MT/s industrial grade within the broader Winbond DRAM portfolio.

Memory IC Replacement Considerations

W631GU8MB-11

Memory IC FAQ

What is the maximum operating frequency for the W631GU8MB11I?

The maximum operating frequency is 933 MHz, corresponding to the DDR3L-1866 speed grade.

Does the W631GU8MB11I support backward compatibility with standard DDR3?

Yes, the device is backward compatible with 1.5V DDR3 SDRAM VDD/VDDQ requirements.