100 Mhz 3-dimm Sdram Buffer

The W83178S is a 13 outputs SDRAM Clock Buffer for 3-DIMMs models incorporate with W83196S- 14 which is the Clock Synthesizer especially for the 100 MHz models such as Intel BX chipsets. (Refer the datasheet fo Winbond W83196S-14 The W83178S receives the Clock from chipset by the Buffer_In pin and provides almost zero-delay (less than 4 nS propagation delay) SDRAM Buffer outputs for the 13 SDRAM Clocks which are synchronous with the CPU Clock outputs priovided by W83196S-14. The Clock skew between any two Clock outputs is less than 250 pS and the output Buffer impedance is about 15 ohms. The W83178S also provides I 2 C serial bus Interface to program the Registers to enable or disable each SDRAM Clock outputs. By Winbond Electronics Corp America