SSTUB32868ET/G,518

Specialty Logic Overview

The SSTUB32868ET/G,518 is a 1.8 V 28-bit 1:2 configurable registered buffer with parity for DDR2-800 RDIMM applications. It supports clock frequencies up to 450 MHz and operates within a supply voltage range of 1.7 V to 2.0 V. The device integrates the functionality of two JEDEC-standard registers into a single package, featuring parity checking across 22 input data bits and an open-drain error output. It utilizes a 176-ball TFBGA package (6 mm x 15 mm) and includes programmable drive strength and additional chip select inputs.

Specialty Logic Feature Summary

• Integrates equivalent functionality of two standard registers to support high-density DIMM designs
• Includes parity checking function with active LOW error indication on QERR pin
• Features programmable normal or high output drive strength via SELDR pin
• Provides two additional chip select inputs for flexible enabling and disabling

Specialty Logic Applications

• High-density DDR2 registered DIMMs operating at 400 MT/s to 800 MT/s
• DDR2 Registered DIMMs requiring parity checking functionality
• Two rank by four (2R x 4) memory module architectures

Specialty Logic Procurement Notes

Verify component authenticity through authorized NXP distributors. Confirm RoHS compliance and lead times prior to ordering. Note that this specific part number may be subject to discontinuation status; check current availability and lifecycle notices before finalizing procurement plans.

Specialty Logic Selection Notes

Select this component for designs requiring integrated parity and dual-register functionality in a compact footprint. Ensure compatibility with SSTL_18 signaling standards and LVCMOS control levels. Verify thermal management requirements for the TFBGA package under maximum operating conditions.

Specialty Logic Part Context

This component belongs to the NXP SSTU series of DDR2 registered buffers. It serves as a specialized logic IC designed to facilitate signal integrity and routing in high-density memory modules by consolidating multiple register functions into a single integrated circuit package.

Specialty Logic Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.