DDR/SDRAM Buffer General Description The RTM 680-229 is a 3.
3V/2.
5V DDR / SDRAM fan out buffer.
The RTM680-229 can be used in conjunction with the RTM560/660/360 or similar clock synthesizer for the VIA 266/333/400 chipset.
The clock chip provides standard serial bus for programming device function.
And RTM 680-229 also builds in the enhance function.
Features z z z z z z z z z Support Up to 400MHz DDR.
Programmable clock skew.
Programmable drive strength.
Power Down feature.
1 input to 12 output buffer 1 feedback clock Supports 2 DDR DIMMs.
Supports 3 SDRAM DIMMs.
Supports 2 type package ID (D2/D6) by bonding option.
Delay select DDR#/SDRAM PAD CLK OUT DDR#/SDRAM clk_in Delay select ...

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