Datasheet

T
T
T
S
S
S
1
1
1
6
6
6
M
M
M
S
S
S
S
S
S
6
6
6
4
4
4
V
V
V
1
1
1
E
E
E
D
D
D
144PIN PC66 Unbuffered SO-DIMM
128MB With 16Mx8 CL3
AC CHARACTERISTICS (AC operating conditions unless otherwise noted)
Refer to the individual component, not the whole module.
Parameter Symbol Value Unit Note
Min Max
CLK cycle time tCC 10 1000 ns 1
CLK to valid output delay tSAC 7 ns 1, 2
Output data hold time tOH 3 ns 2
CLK high pulse width tCH 3.5 ns 3
CLK low pulse width tCL 3.5 ns 3
Input setup time tSS 2.5 ns 3
Input hold time tSH 1.5 ns 3
CLK to output in Low-Z tSLZ 1 ns 2
CLK to output in Hi-Z tSHZ 7 ns
Note: 1. Parameters depend on programmed CAS latency.
2. If clock rising time is longer than 1ns, (tr/2-0.5) ns should be added to the parameter.
3. Assumed input rise and fall time (tr & tf)= 1ns.
If tr & tf is longer than 1ns, transient time compensation should be considered,
i.e., [(tr + tf)/2-1]ns should be added to the parameter.
Transcend Information Inc.
8