SN74SSTUB32866 - Texas Instruments

SN74SSTUB32866 25-BIT CONFIGURABLE REGISTERED BUFFER

This 25-bit 1:1 or 14-bit 1:2 configurable registered buffer is designed for 1.7-V to 1.9-V VCC operation. In the 1:1 pinout configuration, only one device per DIMM is required to drive nine SDRAM loads. In the 1:2 pinout configuration, two devices per DIMM are required to drive 18 SDRAM loads. All inputs are SSTL_18, except the reset (RESET) and control (Cn.

Features

1
•2 Member of the Texas Instruments Widebus+™ Family
• Pinout Optimizes DDR2 DIMM PCB Layout
• Configurable as 25-Bit 1:1 or 14-Bit 1:2 Registered Buffer
• Chip-Select Inputs Gate the Data Outputs from Changing State and Minimizes System Power Consumption
• Output Edge-Control Circuitry Minimizes Switching Noise in an Unterminated Line
• Supports SSTL_18 Data Inputs
• Differential Clock (CLK and CLK) Inputs
• Supports LVCMOS Switching Levels on the Control and RESET Inputs
• Checks Parity on DIMM-Independent Data Inputs
• Able to Cascade with a Second SN74SSTUB32866
• Supports Industrial Tem.