Owner manual

19
ATF1508AS(L)
0784O–PLD–09/02
AC Characteristics
(1)
Symbol Parameter
-7 -10 -15 -20 -25
UnitsMin 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
793121620ns
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
33333ns
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
FastInputDelay 11222ns
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 5678ns
t
LAC
Logic Control Delay 3 5678ns
t
IOE
InternalOutputEnableDelay 22334ns
t
OD1
Output Buffer and Pad Delay
(Slow slew rate = OFF;
V
CCIO
=5V;C
L
=35pF)
21.5456ns