SN74SSTV16859RGQR

Specialty Logic Overview

The SN74SSTV16859RGQR is a registered buffer designed for 2.3-V to 2.7-V VCC operation, supporting 13-bit to 26-bit configurations. It features SSTL_2 compatible data inputs and outputs meeting Class II specifications. The device utilizes differential clock inputs (CLK and CLK) with data registered at the crossing of CLK high and CLK low. An LVCMOS RESET input disables receivers, resets registers, and forces outputs low. It operates within a temperature range of 0°C to 70°C.

Specialty Logic Feature Summary

• Supports 1-to-2 outputs for stacked DDR DIMM applications
• Differential clock inputs enable precise data registration
• RESET input provides global reset and output forcing capabilities
• Pinout optimized for DIMM PCB layout efficiency

Specialty Logic Applications

• Stacked Low-Profile (1U) PC-1600/2100 DIMMs
• Planar PC2700 (DDR-333) RDIMMs
• Registered buffer circuits in memory systems

Specialty Logic Procurement Notes

Verify package type RGQ matches design requirements. Confirm voltage levels align with 2.3-V to 2.7-V specifications. Ensure RESET input remains at valid logic levels during operation. Check moisture sensitivity level ratings before soldering. Validate thermal impedance parameters for the specific application environment.

Specialty Logic Selection Notes

Select this component for designs requiring SSTL_2 compatibility and differential clocking. Consider the 56-pin QFN package for space-constrained layouts. Evaluate power consumption characteristics against system requirements. Verify timing constraints meet signal integrity needs. Compare against alternative packages like TSSOP if pinout differences are critical.

Specialty Logic Part Context

Part of Texas Instruments' Widebus family, the SN74SSTV16859 series supports high-speed memory interfaces. The RGQ variant offers a compact QFN footprint suitable for modern electronic designs. It complements other registered buffers in the SSTV line for comprehensive memory subsystem solutions.

Specialty Logic Replacement Considerations

SN74SSTV16859DGGR serves as a direct replacement offering identical functionality in a TSSOP package.