SSTUM32866EC/S,518

Specialty Logic Overview

The SSTUM32866EC/S,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 accepts a parity bit from the memory controller and compares it with data inputs to indicate errors via an open-drain QERR pin. It operates on a single 1.7 V to 2.0 V supply, supports up to 550 MHz clock frequency, and meets JEDEC standards for SSTL_18 inputs.

Specialty Logic Feature Summary

• Configurable register supporting DDR2 up to 800 MT/s RDIMM applications
• Checks parity on DIMM-independent data inputs with partial parity output and input for cascading
• High output drive version of SSTUG32866 with controlled output impedance drivers

Specialty Logic Applications

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

Specialty Logic Procurement Notes

Verify the specific suffix EC/S indicates the commercial temperature range of 0 °C to +85 °C. Confirm the package is LFBGA96 (SOT536-1) with SnAgCu solder balls. Check current availability status as this component may be discontinued or subject to long-term supply agreements.

Specialty Logic Selection Notes

Select this part when designing DDR2 registered DIMMs that require integrated parity error detection. Ensure the design accommodates the 1.8 V supply voltage and differential clock inputs. Consider the 1:2 configuration if multiple registers are needed on a single DIMM.

Specialty Logic Part Context

This component belongs to the SSTU series of configurable registered buffers. It serves as the high-output drive variant within the family, offering optimized signal integrity for high-density DDR2 module designs compared to standard drive versions.

Specialty Logic Replacement Considerations

SSTUG32866EC/S,518 is the lower drive version of this component. Verify electrical compatibility if substituting based on drive strength requirements.