
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 |
|
| |
|
|
|
|
+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