Timing model, Atf1504as(l), Timing model ac characteristics (continued) – Rainbow Electronics ATF1504ASL User Manual
Page 13
13
ATF1504AS(L)
0950N–PLD–07/02
Note:
See ordering information for valid part numbers.
Timing Model
AC Characteristics (Continued)
Symbol
Parameter
-7
-10
-15
-20
-25
Units
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
f
MAX
Maximum Clock Frequency
166.7
125
100
83.3
60
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
t
OD2
Output Buffer and Pad Delay
(Slow slew rate = OFF;
V
CCIO
= 3.3V; C
L
= 35 pF)
2.5
2.0
5
6
7
ns
t
OD3
Output Buffer and Pad Delay
(Slow slew rate = ON;
V
CCIO
= 5V or 3.3V; C
L
= 35 pF)
5
5.5
8
10
10
ns