ESMT
Preliminary
M52S128168A
AC CHARACTERISTICS (AC operating conditions unless otherwise noted)
-7.5
-10
Parameter
Symbol
tCC
Unit
ns
Note
Min
7.5
12
-
Max
Min
10
Max
CAS Latency =3
CLK cycle time
1000
1000
1
1
CAS Latency =2
CAS Latency =3
CAS Latency =2
12
6
9
7
CLK to valid
output delay
tSAC
ns
-
10
Output data hold time
CLK high pulse width
CLK low pulse width
Input setup time
tOH
tCH
tCL
2.5
2.5
2.5
2
2.5
3
ns
ns
ns
ns
ns
ns
2
3
3
3
3
2
3
tSS
tSH
tSLZ
2.5
1
Input hold time
1
CLK to output in Low-Z
1
1
CLK to output in CAS Latency =3
Hi-Z
6
9
7
tSHZ
ns
10
CAS Latency =2
*All AC parameters are measured from half to half.
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.
Elite Semiconductor Memory Technology Inc.
Publication Date: May. 2007
Revision: 1.0 7/47
ESMT [ ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC. ]
