Ac characteristics(1), Atf1508as(l), Ac characteristics – Rainbow Electronics ATF1508ASL User Manual
Page 19
19
ATF1508AS(L)
0784O–PLD–09/02
AC Characteristics
(1)
Symbol
Parameter
-7
-10
-15
-20
-25
Units
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
t
PD1
Input or Feedback to
Non-registered Output
7.5
10
3
15
20
25
ns
t
PD2
I/O Input or Feedback to
Non-registered Feedback
7
9
3
12
16
20
ns
t
SU
Global Clock Setup Time
6
7
11
16
20
ns
t
H
Global Clock Hold Time
0
0
0
0
0
ns
t
FSU
Global Clock Setup Time of
Fast Input
3
3
3
3
3
ns
t
FH
Global Clock Hold Time of
Fast Input
0.5
0.5
1.0
1.5
2
MHz
t
COP
Global Clock to Output Delay
4.5
5
8
10
13
ns
t
CH
Global Clock High Time
3
4
5
6
7
ns
t
CL
Global Clock Low Time
3
4
5
6
7
ns
t
ASU
Array Clock Setup Time
3
3
4
4
5
ns
t
AH
Array Clock Hold Time
2
3
4
5
6
ns
t
ACOP
Array Clock Output Delay
7.5
10
15
20
25
ns
t
ACH
Array Clock High Time
3
4
6
8
10
ns
t
ACL
Array Clock Low Time
3
4
6
8
10
ns
t
CNT
Minimum Clock Global Period
8
10
13
17
22
ns
f
CNT
Maximum Internal Global
Clock Frequency
125
100
76.9
66
50
MHz
t
ACNT
Minimum Array Clock Period
8
10
13
17
22
ns
f
ACNT
Maximum Internal Array
Clock Frequency
125
100
76.9
66
50
MHz
f
MAX
Maximum Clock Frequency
166.7
125
100
41.7
33.3
MHz
t
IN
Input Pad and Buffer Delay
0.5
0.5
2
2
2
ns
t
IO
I/O Input Pad and Buffer Delay
0.5
0.5
2
2
2
ns
t
FIN
Fast Input Delay
1
1
2
2
2
ns
t
SEXP
Foldback Term Delay
4
5
8
10
12
ns
t
PEXP
Cascade Logic Delay
0.8
0.8
1
1
1.2
ns
t
LAD
Logic Array Delay
3
5
6
7
8
ns
t
LAC
Logic Control Delay
3
5
6
7
8
ns
t
IOE
Internal Output Enable Delay
2
2
3
3
4
ns
t
OD1
Output Buffer and Pad Delay
(Slow slew rate = OFF;
V
CCIO
= 5V; C
L
= 35 pF)
2
1.5
4
5
6
ns