SN74SSTV16859DGG

Specialty Logic Overview

The SN74SSTV16859DGG is a registered buffer IC from the Texas Instruments SSTV logic series, housed in a 64-TSSOP package. It operates on CMOS technology with an SSTL_2 compatible DDR I/O interface. The device accepts 13 inputs and provides 26 outputs, functioning as a 13-to-26 bit register. It supports a supply voltage range of 2.3 V to 2.7 V, with a propagation delay of 2.8 ns. Output drive capabilities include 20 mA low-level and -20 mA high-level currents. It functions within a temperature range of 0°C to +70°C.

Specialty Logic Feature Summary

• Provides registered buffering for 13 input lines to 26 output lines
• Features SSTL_2 compatible DDR I/O interface
• CMOS logic construction for low power operation

Specialty Logic Applications

• Stacked Low-Profile (1U) PC-1600/2100 DIMMs
• Planar PC2700 (DDR-333) RDIMMs

Specialty Logic Procurement Notes

Verify the specific suffix 'DGGR' against 'DGG'. Datasheets list 'SN74SSTV16859DGGR' with TSSOP-64 packaging. Confirm if 'DGG' denotes a distinct tape-and-reel variant or a tube package. Ensure moisture sensitivity level (MSL 2) and RoHS3 compliance match project requirements before procurement.

Specialty Logic Selection Notes

Select this component for designs requiring 1:2 registered buffering with SSTL_2 signaling. Verify that the 2.3 V to 2.7 V VCC range aligns with the system power rails. Check pinout compatibility between TSSOP-64 variants if substituting other packages like VQFN.

Specialty Logic Part Context

This part belongs to the SN74SSTV16859 family of registered buffers. It is designed for high-speed memory applications, specifically supporting DDR SDRAM architectures. The SSTV series focuses on low-voltage, high-performance logic suitable for modern computing systems.

Specialty Logic Replacement Considerations

SN74SSTV16859RGQR (obsolete, 56-VQFN package). SN74SSTVF16859GR (similar function, different series).