ESMT
AC CHARACTERISTICS
(AC operating condition unless otherwise noted)
Parameter
CAS latency = 3
CAS latency = 2
CLK to valid
output delay
Output data
hold time
CLK high pulse width
CLK low pulse width
Input setup time
Input hold time
CLK to output in Low-Z
CLK to output
in Hi-Z
Note:
CAS latency = 3
CAS latency = 2
CAS latency = 3
CAS latency = 2
CAS latency = 3
CAS latency = 2
t
SAC
2
2
2
2
1.5
1
1
4.5
6
Symbol
Min
CLK cycle time
t
CC
5
10
4.5
6
2
2
2.5
2.5
1.5
1
1
5.5
6
-5
Max
1000
Min
6
10
5.5
6
-6
Max
1000
M12L64322A (2U)
-7
Min
7
10
6
6
2
2
2.5
2.5
2
1
1
6
6
Max
1000
Unit
Note
ns
1
ns
1,2
t
OH
t
CH
t
CL
t
SS
t
SH
t
SLZ
t
SHZ
ns
ns
ns
ns
ns
ns
ns
2
3
3
3
3
2
1. Parameters depend on programmed CAS latency.
2. If clock rising time is longer than 1ns. (tr/2 - 0.5) ns should be considered.
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: Apr. 2010
Revision: 1.0
7/46
ESMT [ ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC. ]
