a3p250l Actel Corporation, a3p250l Datasheet - Page 80

• Manufacturer Part Number: a3p250l
• Description: Proasic3l Low-power Flash Fpgas With Flash*freeze Technology
• Manufacturer: Actel Corporation

ProASIC3L DC and Switching Characteristics
Table 2-114 • Minimum and Maximum DC Input and Output Levels
Figure 2-19 • AC Loading
Table 2-115 • AC Waveforms, Measuring Points, and Capacitive Loads
Table 2-116 • SSTL2 Class I
2 -6 8
SSTL2 Class I
Drive
Strength
15 mA
Notes:
1. Currents are measured at 100°C junction temperature and maximum voltage.
2. Currents are measured at 85°C junction temperature.
Input LOW (V)
V
*
Speed
Grade
Std.
–1
Note:
REF
Measuring point = V
– 0.2
For specific junction temperature and voltage supply levels, refer to
values.
SSTL2 Class I
Stub-Speed Terminated Logic for 2.5 V memory bus standard (JESD8-9). ProASIC3E devices support
Class I. This provides a differential amplifier input buffer and a push-pull output buffer.
Timing Characteristics
Commercial-Case Conditions: T
Worst-Case V
Applicable to Pro I/Os
Min., V Max., V
t
0.66
DOUT
0.77
–0.3
Input HIGH (V)
V
V
IL
trip
V
REF
1.91
1.63
REF
t
DP
. See
– 0.2 V
CCI
+ 0.2
= 2.3 V V
Table 2-15 on page 2-12
0.05
0.04
t
DIN
Min., V Max., V Max., V
REF
+ 0.2
REF
V
Test Point
1.89
1.61
Measuring
t
IH
Point* (V)
PY
= 1.25 V
1.25
J
2.7
= 70°C, Worst-Case V
t
A d v a n c e v 0. 4
0.50
0.43
EOUT
SSTL2
Class I
V
0.54
25
OL
for a complete table of trip points.
V
1.95
1.66
t
REF
ZL
V
V
CCI
Min., V
TT
1.25
(typ.) (V)
V
50
OH
– 0.62 15 15
30 pF
1.66
1.41
CC
t
ZH
= 1.14 V,
mA mA Max., mA
I
OL
t
LZ
I
Table 2-6 on page 2-7
OH
V
TT
t
(typ.) (V)
1.25
HZ
I
OSL
83
1.95
1.66
t
ZLS
1
Max., mA
I
OSH
1.66
1.41
87
t
ZHS
C
LOAD
for derating
30
1
µA
(pF)
Units
I
10 10
IL
ns
ns
2
µA
I
IH
2