HYMP112F72CP8N3-C4 Datasheet, PDF (26/32 Pages) Hynix Semiconductor – 240pin Fully Buffered DDR2 SDRAM DIMMs

1240pin Fully Buffered DDR2 SDRAM DIMMs
Termination Current
Internal signals are terminated on the DIMM through resistors to an external power supply VTT = VDD / 2.
Modeled with 30 Ohm termination for clocks, 39 ohm for command / address and 47 ohm for control.
The VTT power supply must be able to source and sink these currents:
VTT Currents table
Description
Idle Current, DRAM Power Down (Conditions TBD)
Active Power, 50% DRAM BW (conditions TBD)
Symbol
I_TT1
I_TT2
Typ
Max
Unit
-
700
mA
-
700
mA
Rev 1.01 / Sep. 2008
26