SSTUG32868ET/S,518

Specialty Logic Overview

The SSTUG32868ET/S,518 is a 1.8 V 28-bit 1:2 configurable registered buffer with parity, designed for DDR2-1G 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 in a single package, featuring permanently configured high output drive strength and two additional chip select inputs. It utilizes a 176-ball TFBGA package (6 mm × 15 mm) and includes parity checking across 22 input data bits.

Specialty Logic Feature Summary

• Integrates equivalent functionality of two JEDEC-standard DDR2 registers into a single package
• Includes parity checking function that compares received data against controller parity bit
• Permanently configured for high output drive strength to support heavy net loading
• Features two additional chip select inputs for versatile 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 designs

Specialty Logic Procurement Notes

Verify component authenticity through official NXP channels or authorized distributors. Confirm the specific suffix 'S' indicates an extended temperature range of 0 °C to +85 °C compared to the 'G' variant. Ensure compatibility with existing board layouts due to the specific 176-ball TFBGA footprint dimensions.

Specialty Logic Selection Notes

Select this component when designing high-density DDR2 modules requiring integrated parity checking and reduced board space. It serves as a direct functional replacement for dual standard register configurations. Verify that the system design accommodates the 1.8 V supply requirements and differential clock inputs.

Specialty Logic Part Context

This part belongs to the SSTU family of logic ICs manufactured by NXP Semiconductors. It is specifically optimized for high-speed memory interfaces, offering faster propagation delay characteristics within its series. The device is designed to meet JEDEC standards while providing enhanced features for modern memory architectures.

Specialty Logic Replacement Considerations

Public confirmed substitute part numbers include SSTUB32868ET/G,518 and SSTUG32866EC/S,518.