SSTUP32866EC/G,518

Specialty Logic Overview

The SSTUP32866EC/G,518 is a 1.8 V configurable registered buffer designed for DDR2 memory modules requiring parity checking. It supports two topologies: 25-bit 1:1 or 14-bit 1:2. The device operates at clock frequencies up to 450 MHz and supports data rates of 667 MT/s or 800 MT/s. It features programmable output drive strength (normal or high) and includes an open-drain error output (QERR). The component is housed in a 96-ball LFBGA package with dimensions of 13.5 mm x 5.5 mm.

Specialty Logic Feature Summary

• Configurable register supporting DDR2 RDIMM applications with selectable 1:1 or 1:2 topologies
• Programmable speed grades and output drive strengths via external pin configuration
• Integrated parity checking function with partial parity output for cascading
• Low-power standby operation controlled by asynchronous reset and chip select inputs

Specialty Logic Applications

• 667 MT/s to 800 MT/s DDR2 registered DIMMs desiring parity checking functionality

Specialty Logic Procurement Notes

Verify the specific suffix (G vs S) against the required ambient temperature range, as G denotes 0°C to +70°C while S denotes 0°C to +85°C. Confirm that the Pb-free SnAgCu solder ball compound matches the assembly process requirements. Ensure the LFBGA96 package footprint aligns with the PCB design constraints before finalizing procurement.

Specialty Logic Selection Notes

Select this component when designing DDR2-800 or DDR2-667 Registered DIMMs that require hardware parity error detection. The choice between SELAB and SELDR pin configurations determines the operational speed grade and drive strength. Consider the 1:2 topology if multiple registers are needed on a single DIMM to distribute the load.

Specialty Logic Part Context

This part belongs to the SSTU series of registered buffers from NXP Semiconductors. It is defined in accordance with JEDEC standards for SSTUA32866 and SSTUB3266 registered buffers. The EC/G variant specifically refers to the commercial temperature range version packaged in the LFBGA96 format.

Specialty Logic Replacement Considerations

SSTUP32866EC/S,518