M390S2858CTU Datasheet, PDF (8/12 Pages) Samsung semiconductor – PC133/PC100 Low Profile Registered DIMM

M390S2858CTU
PC133/PC100 Low Profile Registered DIMM
AC CHARACTERISTICS (AC operating conditions unless otherwise noted)
REFER TO THE INDIVIDUAL COMPONENET, NOT THE WHOLE MODULE.
Parameter
Symbol
CLK cycle
time
CAS latency=3
tCC
CAS latency=2
- 7C
Min Max
7.5
1000
7.5
- 7A
Min Max
7.5
1000
10
- 1H
Min Max
10
1000
10
- 1L
Min Max
10
1000
12
CLK to valid
output delay
CAS latency=3
CAS latency=2
tSAC
5.4
5.4
5.4
6
6
6
6
7
Output data
hold time
CAS latency=3
CAS latency=2
tOH
3
3
3
3
3
3
3
3
CLK high pulse width
tCH
2.5
2.5
3
3
CLK low pulse width
tCL
2.5
2.5
3
3
Input setup time
tSS
1.5
1.5
2
2
Input hold time
tSH
0.8
0.8
1
1
CLK to output in Low-Z
tSLZ
1
1
1
1
CLK to output ^{CAS latency=3}
in Hi-Z
CAS latency=2
tSHZ
5.4
5.4
5.4
6
6
6
6
7
Notes : _{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.
Unit Note
ns
1
ns 1,2
ns
2
ns
3
ns
3
ns
3
ns
3
ns
2
ns
Rev. 0.1 Sept. 2001