DDR SSTL-2 Termination
SSTL-2 Termination Resistors
| DDR | Rs | Rtt |
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MD/DQM(/DQS) |
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10 | 33 |
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MA/Control | 0 | 33 |
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CS | 0 | 47 |
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CKE | OD 2.5V |
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| +1.25VS |
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| +1.25VS |
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| 0402 Package |
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| 0402 Package | ||
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| /RMD0 | 8 | 1 |
| /RMA2 | 5 | 4 |
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| /RMD1 | 7 | 2 |
| /RMA0 | 6 | 3 |
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| /RDQS0 | 6 | 3 |
| /RMA12 | 7 | 2 |
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| /RMD2 | 5 | 4 | 6,7 /RSRAS# | /RSRAS# | 8 | 1 |
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| /RMD3 | RP52 | /RMD6 | RP31 | |||
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| 8 | 1 |
| 1 | 8 | ||
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| /RMD8 | 7 | 2 |
| /RDQM0 | 2 | 7 |
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| /RMD9 | 6 | 3 |
| /RMD5 | 3 | 6 |
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| /RDQS1 | 5 | 4 |
| /RMD4 | 4 | 5 |
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| /RMD10 | RP53 |
| /RDQM1 | RP24 | ||
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| 8 | 1 |
| 1 | 8 | ||
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| /RMD11 | 7 | 2 |
| /RMD13 | 2 | 7 |
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| /RMD16 | 6 | 3 |
| /RMD12 | 3 | 6 |
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| /RMD17 | 5 | 4 |
| /RMD7 | 4 | 5 |
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| /RDQS2 | RP54 |
| /RMD20 | RP23 | ||
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| 8 | 1 |
| 1 | 8 | ||
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| /RMD18 | 7 | 2 |
| /RMD21 | 2 | 7 |
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| /RMD19 | 6 | 3 |
| /RMD15 | 3 | 6 |
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| /RMD24 | 5 | 4 |
| /RMD14 | 4 | 5 |
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| /RMD25 | RP55 |
| /RDQM2 | RP22 | ||
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| 8 | 1 |
| 4 | 5 |
/RMD[0..63] /RMD[0..63]6,7
/RDQM[0..7] /RDQM[0..7]6,7
/RDQS[0..7] /RDQS[0..7]6,7
/RMA[0..14] | /RMA[0..14] 6,7 | |
/RCS#[0..5] | ||
/RCS#[0..5] 6,7 | ||
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+1.25VS | DECOUPLING CAPACITOR FOR |
| 0603 Package placed within 200mils of VTT Termination |
Schematic Diagrams
Sheet 10 of 42
DDR
Termination
B.Schematic
/RDQS3 | 7 | 2 | /RMD22 | 3 | 6 |
/RMD26 | 6 | 3 | /RMD23 | 2 | 7 |
/RMD27 | 5 | 4 | /RMD28 | 1 | 8 |
/RMA14 | RP56 | /RMD29 | RP21 | ||
8 | 1 | 4 | 5 | ||
/RMA9 | 7 | 2 | /RDQM3 | 3 | 6 |
/RMA7 | 6 | 3 | /RMD30 | 2 | 7 |
/RMA5 | 5 | 4 | /RMD31 | 1 | 8 |
/RMA3 | RP57 | /RMA8 | RP20 | ||
8 | 1 | 4 | 5 | ||
/RMA1 | 7 | 2 | /RMA13 | 3 | 6 |
/RMA10 | 6 | 3 | /RMA4 | 2 | 7 |
/RMA11 | 5 | 4 | /RMA6 | 1 | 8 |
/RMD32 | RP58 | /RMD37 | RP17 | ||
8 | 1 | 5 | 4 | ||
/RMD33 | 7 | 2 | /RMD36 | 6 | 3 |
/RDQS4 | 6 | 3 | /RDQM4 | 7 | 2 |
/RMD34 | 5 | 4 | /RMD38 | 8 | 1 |
/RMD35 | RP59 | /RMD44 | RP30 | ||
8 | 1 | 1 | 8 | ||
/RMD40 | 7 | 2 | /RMD45 | 2 | 7 |
/RMD41 | 6 | 3 | /RDQM5 | 3 | 6 |
C167 0.1UF
C203 0.1UF
C176 0.1UF
C714 0.1UF
C169 0.1UF
C715 0.1UF
C173 0.1UF
C179 0.1UF
C199 0.1UF
C207 0.1UF
C181 0.1UF
C170 0.1UF
C202 0.1UF
C175 0.1UF
C180 0.1UF
C178 0.1UF
Diagrams
/RDQS5 | 5 | 4 | /RMD39 | 4 | 5 |
/RMD42 | RP60 | /RMD47 | RP29 | ||
8 | 1 | 4 | 5 | ||
/RMD43 | 7 | 2 | /RMD46 | 3 | 6 |
/RMD48 | 6 | 3 | /RMD52 | 2 | 7 |
/RMD49 | 5 | 4 | /RMD53 | 1 | 8 |
/RDQS6 | RP61 | /RDQM6 | RP28 | ||
8 | 1 | 4 | 5 |
+1.25VS
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| /RMD50 | 7 | 2 | /RMD54 | 3 | 6 |
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| /RMD51 | 6 | 3 | /RMD55 | 2 | 7 |
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| /RMD56 | 5 | 4 | /RMD60 | 1 | 8 |
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| /RMD57 | RP62 | /RMD61 | RP27 | ||
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| 8 | 1 | 4 | 5 | ||
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| /RDQS7 | 7 | 2 | /RDQM7 | 3 | 6 |
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| /RMD58 | 6 | 3 | /RMD62 | 2 | 7 |
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| /RMD59 | 5 | 4 | /RMD63 | 1 | 8 |
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| RP63 |
| RP26 | ||
6,7 | /RSCAS# | /RSCAS# | R189 | 33 | /RCS#1 | 1 | 8 |
| R526 | 33 | |||||
6,7 | /RSWE# | /RSWE# | /RCS#0 | 2 | 7 | ||
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| /RCS#3 | 3 | 6 | ||
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| /RCS#2 | 4 | 5 |
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| RP19 | |
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| /RCS#4 | R156 | 47 |
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| /RCS#5 | R155 | 47 |
C174 0.1UF
C201 0.1UF
C716 0.1UF
C722 0.1UF
C206 0.1UF
C200 0.1UF
C726 0.1UF
C727 0.1UF
C205 0.1UF
C166 0.1UF
C724 0.1UF
C721 0.1UF
C204 0.1UF
C168 0.1UF
C728 0.1UF
C725 0.1UF
DDR