SSTUH32866EC/G,518

Specialty Logic Overview

The SSTUH32866EC/G,518 is a 1.8 V configurable registered buffer with parity checking, designed for DDR2 memory modules. It supports two topologies: 25-bit 1:1 or 14-bit 1:2. The device operates within a supply voltage range of 1.7 V to 1.9 V and supports clock frequencies up to 450 MHz. It features single-bit switching propagation delay of 1.8 ns maximum and mass-switching delay of 2.0 ns maximum. Packaged in a 96-ball LFBGA (13.5 mm x 5.5 mm), it includes open-drain error output and partial parity output capabilities.

Specialty Logic Feature Summary

• Configurable register supporting DDR2 Registered DIMM applications
• Higher output drive strength optimized for high-capacitive load nets
• Checks parity on DIMM-independent data inputs
• Supports differential clock inputs

Specialty Logic Applications

• DDR2 registered DIMMs desiring parity checking functionality
• Stacked or planar high-DRAM count registered DIMMs

Specialty Logic Procurement Notes

Verify the component status as discontinued before procurement planning. Confirm the specific solder ball compound variant required, as the EC suffix denotes Pb-free SnAgCu compounds while other variants may differ. Ensure compatibility with existing JEDEC standards and board layout constraints associated with the LFBGA96 package dimensions.

Specialty Logic Selection Notes

Select this component when designing DDR2 RDIMMs requiring parity checking and higher drive strength for heavy load nets. Consider the 1:1 or 1:2 configuration options based on system topology requirements. Verify that the 1.8 V supply and SSTL_18 input compatibility align with the memory controller specifications.

Specialty Logic Part Context

This part belongs to the NXP SSTU series of configurable registers. It is functionally identical to the SSTU32866 but features higher-drive outputs optimized for driving heavy load nets such as stacked DRAMs. It maintains speed and signal integrity while providing enhanced drive capability compared to standard versions.

Specialty Logic Replacement Considerations

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