DDR SSTL-2 Termination
SSTL-2 Termination Resistors
| DDR | Rs | Rtt | |
MD/DQM(/DQS) | ||||
10 | 33 | |||
MA/Control | 0 | 33 | ||
CS | 0 | 47 | ||
CKE | OD 2.5V |
|
| |
|
|
|
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+1.25VS | +1.25VS |
/RMD[0..63] /RMD[0..63]6,7
/RDQM[0..7] /RDQM[0..7]6,7
/RDQS[0..7] /RDQS[0..7]6,7
Schematic Diagrams
/RMD0 | 8 | 1 |
/RMD1 | 7 | 2 |
/RDQS0 | 6 | 3 |
/RMD2 | 5 | 4 |
/RMD3 | RP63 | |
8 | 1 | |
/RMD8 | 7 | 2 |
/RMD9 | 6 | 3 |
/RDQS1 | 5 | 4 |
/RMD10 | RP64 | |
8 | 1 | |
/RMD11 | 7 | 2 |
/RMD16 | 6 | 3 |
/RMD17 | 5 | 4 |
/RDQS2 | RP65 | |
8 | 1 | |
/RMD18 | 7 | 2 |
/RMD19 | 6 | 3 |
/RMD24 | 5 | 4 |
/RMD25 | RP66 | |
8 | 1 |
| /RMA2 | 5 | 4 |
| /RMA0 | 6 | 3 |
| /RMA12 | 7 | 2 |
6,7 /RSRAS# | /RSRAS# | 8 | 1 |
/RMD6 | RP34 | ||
| 1 | 8 | |
| /RDQM0 | 2 | 7 |
| /RMD5 | 3 | 6 |
| /RMD4 | 4 | 5 |
| /RDQM1 | RP31 | |
| 1 | 8 | |
| /RMD13 | 2 | 7 |
| /RMD12 | 3 | 6 |
| /RMD7 | 4 | 5 |
| /RMD20 | RP30 | |
| 1 | 8 | |
| /RMD21 | 2 | 7 |
| /RMD15 | 3 | 6 |
| /RMD14 | 4 | 5 |
| /RDQM2 | RP29 | |
| 4 | 5 |
/RMA[0..14] | /RMA[0..14] 6,7 | |
/RCS#[0..5] | ||
/RCS#[0..5] 6,7 | ||
|
+1.25VS | DECOUPLING CAPACITOR FOR |
| 0603 Package placed within 200mils of VTT Termination |
Sheet 10 of 41
DDR
Termination
B.Schematic
/RDQS3 | 7 | 2 |
/RMD26 | 6 | 3 |
/RMD27 | 5 | 4 |
/RMA14 | RP67 | |
8 | 1 | |
/RMA9 | 7 | 2 |
/RMA7 | 6 | 3 |
/RMA5 | 5 | 4 |
/RMA3 | RP68 | |
8 | 1 | |
/RMA1 | 7 | 2 |
/RMA10 | 6 | 3 |
/RMA11 | 5 | 4 |
/RMD32 | RP69 | |
8 | 1 | |
/RMD33 | 7 | 2 |
/RDQS4 | 6 | 3 |
/RMD34 | 5 | 4 |
/RMD35 | RP70 | |
8 | 1 | |
/RMD40 | 7 | 2 |
/RMD41 | 6 | 3 |
/RMD22 | 3 | 6 |
/RMD23 | 2 | 7 |
/RMD28 | 1 | 8 |
/RMD29 | RP28 | |
4 | 5 | |
/RDQM3 | 3 | 6 |
/RMD30 | 2 | 7 |
/RMD31 | 1 | 8 |
/RMA8 | RP27 | |
4 | 5 | |
/RMA13 | 3 | 6 |
/RMA4 | 2 | 7 |
/RMA6 | 1 | 8 |
/RMD37 | RP25 | |
5 | 4 | |
/RMD36 | 6 | 3 |
/RDQM4 | 7 | 2 |
/RMD38 | 8 | 1 |
/RMD44 | RP33 | |
1 | 8 | |
/RMD45 | 2 | 7 |
/RDQM5 | 3 | 6 |
C154 0.1UF
C189 0.1UF
C162 0.1UF
C536 0.1UF
C156 0.1UF
C537 0.1UF
C159 0.1UF
C164 0.1UF
C185 0.1UF
C193 0.1UF
C166 0.1UF
C157 0.1UF
C188 0.1UF
C161 0.1UF
C165 0.1UF
C163 0.1UF
Diagrams
/RDQS5 | 5 | 4 |
/RMD42 | RP71 | |
8 | 1 | |
/RMD43 | 7 | 2 |
/RMD48 | 6 | 3 |
/RMD49 | 5 | 4 |
/RDQS6 | RP72 | |
8 | 1 |
/RMD39 | 4 | 5 |
/RMD47 | RP24 | |
4 | 5 | |
/RMD46 | 3 | 6 |
/RMD52 | 2 | 7 |
/RMD53 | 1 | 8 |
/RDQM6 | RP23 | |
4 | 5 |
+1.25VS
6,7 /RSCAS#
6,7 /RSWE#
/RMD50 | 7 | 2 |
/RMD51 | 6 | 3 |
/RMD56 | 5 | 4 |
/RMD57 | RP73 | |
8 | 1 | |
/RDQS7 | 7 | 2 |
/RMD58 | 6 | 3 |
/RMD59 | 5 | 4 |
| RP74 | |
/RSCAS# | R137 | 33 |
/RSWE# | R396 | 33 |
/RMD54 | 3 | 6 |
/RMD55 | 2 | 7 |
/RMD60 | 1 | 8 |
/RMD61 | RP22 | |
4 | 5 | |
/RDQM7 | 3 | 6 |
/RMD62 | 2 | 7 |
/RMD63 | 1 | 8 |
| RP21 | |
/RCS#1 | 1 | 8 |
/RCS#0 | 2 | 7 |
/RCS#3 | 3 | 6 |
/RCS#2 | 4 | 5 |
| RP26 | |
/RCS#4 | R138 | 47 |
/RCS#5 | R139 | 47 |
C160 0.1UF
C187 0.1UF
C538 0.1UF
C541 0.1UF
C192 0.1UF
C186 0.1UF
C546 0.1UF
C542 0.1UF
C191 0.1UF
C153 0.1UF
C544 0.1UF
C540 0.1UF
C190 0.1UF
C155 0.1UF
C543 0.1UF
C545 0.1UF
DDR