EX128-TQG100A Datasheet, PDF (22/44 Pages) Actel Corporation – eX Automotive Family FPGAs

eX Automotive Family FPGAs
Output Buffer Delays
E
D
TRIBUFF
PAD To AC test loads (shownbelow)
V_CC
In 50% 50% GND
VOH
Out
1.5 V
1.5 V
VOL _tDLH
tDHL
Table 1-13 • Output Buffer Delays
VCC
En ^{50% 50%}
GND
VCC
Out
1.5 V
10%
tENZL ^VOL tENLZ
AC Test Loads
Load 1
(used to measure
propagation delay)
To the output
under test
35 pF
Load 2
(Used to measure enable delays)
V_CC ^GND
To the output
under test
R
R
to
to
GV^CN^CDfofrotrPtZPLHZ
R = 1 kΩ
35 pF
V_CC
En 50% 50%
GND
Out
GND _tENZH
VOH
1.5 V
90%
tENHZ
Load 3
(Used to measure disable delays)
VCC ^GND
To the output
under test
R
R
to
to
GV^CN^CDfofrotrPtLPZHZ
R = 1 kΩ
5 pF
Figure 1-16 • AC Test Loads
1-18
v3.2