Produktdetails

Function Memory interface Output frequency (max) (MHz) 200 Number of outputs 26 Output supply voltage (V) 2.5 Core supply voltage (V) 2.5 Features DDR2 register Operating temperature range (°C) 0 to 70 Rating Military Output type SSTL-18 Input type SSTL-18
Function Memory interface Output frequency (max) (MHz) 200 Number of outputs 26 Output supply voltage (V) 2.5 Core supply voltage (V) 2.5 Features DDR2 register Operating temperature range (°C) 0 to 70 Rating Military Output type SSTL-18 Input type SSTL-18
TSSOP (DGG) 64 137.7 mm² 17 x 8.1 VQFNP (RGQ) 56 64 mm² 8 x 8
  • Member of the Texas Instruments Widebus™ Family
  • 1-to-2 Outputs to Support Stacked DDR DIMMs
  • Supports SSTL_2 Data Inputs
  • Outputs Meet SSTL_2 Class II Specifications
  • Differential Clock (CLK and CLK\) Inputs
  • Supports LVCMOS Switching Levels on the RESET\ Input
  • RESET\ Input Disables Differential Input Receivers, Resets All Registers, and Forces All Outputs Low
  • Pinout Optimizes DIMM PCB Layout
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)

Widebus is a trademark of Texas Instruments.

  • Member of the Texas Instruments Widebus™ Family
  • 1-to-2 Outputs to Support Stacked DDR DIMMs
  • Supports SSTL_2 Data Inputs
  • Outputs Meet SSTL_2 Class II Specifications
  • Differential Clock (CLK and CLK\) Inputs
  • Supports LVCMOS Switching Levels on the RESET\ Input
  • RESET\ Input Disables Differential Input Receivers, Resets All Registers, and Forces All Outputs Low
  • Pinout Optimizes DIMM PCB Layout
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)

Widebus is a trademark of Texas Instruments.

This 13-bit to 26-bit registered buffer is designed for 2.3-V to 2.7-V VCC operation.

All inputs are SSTL_2, except the LVCMOS reset (RESET)\ input. All outputs are SSTL_2, Class II compatible.

The SN74SSTV16859 operates from a differential clock (CLK and CLK\). Data are registered at the crossing of CLK going high and CLK\ going low.

The device supports low-power standby operation. When RESET\ is low, the differential input receivers are disabled, and undriven (floating) data, clock, and reference voltage (VREF) inputs are allowed. In addition, when RESET\ is low, all registers are reset and all outputs are forced low. The LVCMOS RESET\ input always must be held at a valid logic high or low level.

To ensure defined outputs from the register before a stable clock has been supplied, RESET\ must be held in the low state during power up.

This 13-bit to 26-bit registered buffer is designed for 2.3-V to 2.7-V VCC operation.

All inputs are SSTL_2, except the LVCMOS reset (RESET)\ input. All outputs are SSTL_2, Class II compatible.

The SN74SSTV16859 operates from a differential clock (CLK and CLK\). Data are registered at the crossing of CLK going high and CLK\ going low.

The device supports low-power standby operation. When RESET\ is low, the differential input receivers are disabled, and undriven (floating) data, clock, and reference voltage (VREF) inputs are allowed. In addition, when RESET\ is low, all registers are reset and all outputs are forced low. The LVCMOS RESET\ input always must be held at a valid logic high or low level.

To ensure defined outputs from the register before a stable clock has been supplied, RESET\ must be held in the low state during power up.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet SN74SSTV16859 datasheet (Rev. D) 03 Aug 2004
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dez 2015
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
Application note 56-Pin Quad Flatpack No-Lead Logic Package 07 Feb 2003
Application note Application of the SN74SSTVF16857 in Planar PC2700 (DDR-333) RDIMMs 10 Jan 2003
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 Aug 2002
More literature DIMM Module Solution 13 Jun 2002
More literature Standard Linear & Logic for PCs, Servers & Motherboards 13 Jun 2002
Application note Application of the SN74SSTV32852 in Stacked, Low-Profile (1U) PC-1600/2100 DIMMs 07 Nov 2001
Application note Low-Power Support Using Texas Instruments SN74SSTV16857 and SN74SSTV16859 09 Feb 2001

Design und Entwicklung

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Simulationsmodell

HSPICE Model of SN74SSTV16859

SCEJ121.ZIP (42 KB) - HSpice Model
Simulationsmodell

SN74SSTV16859 IBIS Model (Rev. C)

SCEM158C.ZIP (18 KB) - IBIS Model
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