Input test waveforms and measurement levels, Atf1508asv(l), Ac characteristics – Rainbow Electronics ATF1508ASVL User Manual
Page 13: Continued)
13
ATF1508ASV(L)
1408F–PLD–10/02
Notes:
1. See ordering information for valid part numbers.
2. The t
RPA
parameter must be added to the t
LAD
, t
LAC
,t
TIC
, t
ACL
, and t
SEXP
parameters for macrocells running in the reduced-
power mode.
Input Test Waveforms and Measurement Levels
t
R
, t
F
= 1.5 ns typical
t
ZX2
Output Buffer Enable Delay
(Slow slew rate = OFF; V
CCIO
= 3.3V; C
L
= 35 pF)
7
9
ns
t
ZX3
Output Buffer Enable Delay
(Slow slew rate = ON; V
CCIO
= 5.0V/3.3V; C
L
= 35 pF)
10
11
ns
t
XZ
Output Buffer Disable Delay
(C
L
= 5 pF)
6
7
ns
t
SU
Register Setup Time
5
6
ns
t
H
Register Hold Time
4
5
ns
t
FSU
Register Setup Time of Fast Input
2
2
ns
t
FH
Register Hold Time of Fast Input
2
2
ns
t
RD
Register Delay
2
2.5
ns
t
COMB
Combinatorial Delay
2
3
ns
t
IC
Array Clock Delay
6
7
ns
t
EN
Register Enable Time
6
7
ns
t
GLOB
Global Control Delay
2
3
ns
t
PRE
Register Preset Time
4
5
ns
t
CLR
Register Clear Time
4
5
ns
t
UIM
Switch Matrix Delay
2
2.5
ns
t
RPA
Reduced-Power Adder
(2)
10
13
ns
AC Characteristics
(1)
(Continued)
Symbol
Parameter
-15
-20
Units
Min
Max
Min
Max