SN74SSTV16859RGQR - 13-Bit to 26-Bit SSTL-2 Registered Buffer with Differential Clock Inputs

The SN74SSTV16859RGQR from Texas Instruments is a high-speed, 13-bit to 26-bit SSTL-2 (Stub Series Terminated Logic) registered buffer designed to meet the rigorous demands of high-performance memory interface applications. This device is an ideal choice for buffering data lines in memory modules, where signal integrity and timing precision are paramount.

Featuring differential clock inputs (CLK and CLK), the SN74SSTV16859RGQR ensures reliable and accurate latching of data, minimizing the skew and improving the overall timing margin of the system. The device operates at a 2.5V VDD supply voltage, which aligns with the requirements of DDR SDRAM memory systems, making it a versatile and energy-efficient solution for modern computing environments.

With its 13-bit wide input bus, the SN74SSTV16859RGQR can be configured to operate as either a 1:1 or a 1:2 registered buffer, providing flexibility in system design. When used in the 1:2 configuration, the device effectively doubles the data width, facilitating a 26-bit wide bus interface. This feature is particularly useful for expanding the data path in high-density memory modules without increasing the number of traces on the PCB.

The SN74SSTV16859RGQR is available in a compact 64-pin QFN package (RGQ) with a body size of 9 mm x 9 mm, which is suitable for space-constrained applications. Its reduced package size helps to minimize board space and allows for higher density designs without sacrificing performance.

Key features of the SN74SSTV16859RGQR include:

• Support for SSTL-2 signaling levels
• Operates from a 2.5 V supply
• Maximum clock frequency of 200 MHz
• Low-voltage differential clock inputs
• Flow-through pinout for optimal PCB layout
• Support for hot insertion

Overall, the SN74SSTV16859RGQR from Texas Instruments is a robust and reliable registered buffer that enhances the performance and stability of high-speed digital systems. Its specialized features and design make it an excellent choice for designers looking to optimize their memory interfaces in both industrial and commercial applications.