SO-DIMM Module — Unbuffered SDRAM/SGRAM Graphics
18
Revision 0.91
8.2 Address/Control Routing
The following table lists the allowable stub lengths for the address/control routing.
Figure 10.Address and Control Routing
Table 7. Stub Lengths (Address/Control Routing)
SDRAM/SGRAM Clock Frequency
Parameters 15 nS 12 nS 10 nS 8 nS Units
Min. Max Min. Max Min. Max Min. Max
a 0 37 0 37 0 37 0 37 pS
b 0 190 0 190 0 190 0 190 pS
c 0 115 0 115 0 115 0 115 pS
d 0 115 0 115 0 115 0 115 pS
e 0 115 0 115 0 115 0 115 pS
f 0 115 0 115 0 115 0 115 pS
g 0 115 0 115 0 115 0 115 pS
h 0 115 0 115 0 115 0 115 pS
b-c -75 75 -75 75 -75 75 -75 75 pS
b-d -75 75 -75 75 -75 75 -75 75 pS
c+e 0 190 0 190 0 190 0 190 pS
c+f 0 190 0 190 0 190 0 190 pS
d+g 0 190 0 190 0 190 0 190 pS
d+h 0 190 0 190 0 190 0 190 pS
total length 0 375 0 375 0 375 0 375 pS
A009.vsd
b
a
o
o
o
o
Bank 1
Bank 0
e
f
cd
h
10 ohm