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HYS64T128020EML-3.7-B Datasheet(PDF) 8 Page - Qimonda AG |
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HYS64T128020EML-3.7-B Datasheet(HTML) 8 Page - Qimonda AG |
8 / 39 page Preliminary Internet Data Sheet Rev. 0.5, 2007-05 8 05212007-7F24-MITO HYS64T128020EML-[3S/3.7/5]-B Unbuffered DDR2 SDRAM MicroDIMM Modules 200 DQ54 I/O SSTL Data Bus 39:57 201 DQ55 I/O SSTL 95 DQ56 I/O SSTL 96 DQ57 I/O SSTL 101 DQ58 I/O SSTL 102 DQ59 I/O SSTL 203 DQ60 I/O SSTL 204 DQ61 I/O SSTL 208 DQ62 I/O SSTL 209 DQ63 I/O SSTL 7 DQS0 I/O SSTL Data Strobes 7:0 Note: The data strobes, associated with one data byte, sourced with data transfers. In Write mode, the data strobe is sourced by the controller and is centered in the data window. In Read mode the data strobe is sourced by the DDR2 SDRAM and is sent at the leading edge of the data window. DQS signals are complements, and timing is relative to the crosspoint of respective DQS and DQS. If the module is to be operated in single ended strobe mode, all DQS signals must be tied on the system board to V SS and DDR2 SDRAM mode registers programmed appropriately. 2. See block diagram for corresponding DQ signals 6 DQS0 I/O SSTL 19 DQS1 I/O SSTL 18 DQS1 I/O SSTL 28 DQS2 I/O SSTL 27 DQS2 I/O SSTL 140 DQS3 I/O SSTL 139 DQS3 I/O SSTL 71 DQS4 I/O SSTL 70 DQS4 I/O SSTL 186 DQS5 I/O SSTL 185 DQS5 I/O SSTL 198 DQS6 I/O SSTL 197 DQS6 I/O SSTL 99 DQS7 I/O SSTL 98 DQS7 I/O SSTL 112 DM0 I SSTL Data Masks 7:0 Note: The data write masks, associated with one data byte. In Write mode, DM operates as a byte mask by allowing input data to be written if it is LOW but blocks the write operation if it is HIGH. In Read mode, DM lines have no effect. 3. ×8 based module 120 DM1 I SSTL 131 DM2 I SSTL 36 DM3 I SSTL 177 DM4 I SSTL 79 DM5 I SSTL 90 DM6 I SSTL 206 DM7 I SSTL EEPROM 105 SCL I CMOS Serial Bus Clock Note: This signal is used to clock data into and out of the SPD EEPROM. 104 SDA I/O OD Serial Bus Data Note: This is a bidirectional pin used to transfer data into or out of the SPD EEPROM. A resistor must be connected from SDA to V DDSPD on the motherboard to act as a pull-up. Ball No. Name Pin Type Buffer Type Function |
Similar Part No. - HYS64T128020EML-3.7-B |
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