Datasheet

T
T
T
S
S
S
6
6
6
4
4
4
M
M
M
L
L
L
S
S
S
6
6
6
4
4
4
V
V
V
6
6
6
F
F
F
168PIN PC133 Unbuffered DIMM
512MB With 32Mx8 CL3
Transcend information Inc. 8
AC CHARACTERISTICS (AC operating conditions unless otherwise noted)
Refer to the individual component, not the whole module.
Parameter Symbol Min Max Unit Note
CAS latency=3 7.5
CLK cycle time
CAS latency=2
tCC
1000
ns 1
CAS latency=3 - 5.4
CLK to valid
output delay
CAS latency=2
tSAC
-
ns 1, 2
CAS latency=3 3 -
Output data
hold time
CAS latency=2
t
OH
-
ns 2
CLK high pulse width tCH 2.5 ns 3
CLK low pulse width tCL 2.5 ns 3
Input setup time tSS 1.5 ns 3
Input hold time tSH 0.8 ns 3
CLK to output in Low-Z tSLZ 1 ns 2
CAS latency=3 5.4
CLK to output
in Hi-Z
CAS latency=2
t
SHZ
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.