a3p250l Actel Corporation, a3p250l Datasheet - Page 81

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

Table 2-117 • Minimum and Maximum DC Input and Output Levels
Figure 2-20 • AC Loading
Table 2-118 • AC Waveforms, Measuring Points, and Capacitive Loads
Table 2-119 • SSTL2 Class II
SSTL2 Class II
Drive
Strength
18 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 II
Stub-Speed Terminated Logic for 2.5 V memory bus standard (JESD8-9). ProASIC3E devices support
Class II. 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
trip
IL
V
REF
1.95
1.66
REF
t
DP
. See
CCI
– 0.2 V
+ 0.2
= 2.3 V V
Table 2-15 on page 2-12
0.05
0.04
t
DIN
Min., V
REF
+ 0.2
REF
Test Point
V
1.89
1.61
Measuring
t
Point* (V)
IH
PY
= 1.25 V
Max., V Max., V
1.25
J
= 70°C, Worst-Case V
2.7
t
A dv a n c e v 0. 4
0.50
0.43
EOUT
SSTL2
Class II
V
0.35
25
for a complete table of trip points.
OL
V
1.99
1.69
t
REF
ZL
V
V
Min., V
CCI
TT
1.25
(typ.) (V)
V
25
OH
– 0.43 18 18
30 pF
1.59
1.36
CC
t
ZH
= 1.14 V,
mA mA Max., mA
I
ProASIC3L DC and Switching Characteristics
OL
t
LZ
I
Table 2-6 on page 2-7
OH
V
TT
t
(typ.) (V)
1.25
HZ
I
169
OSL
1.99
1.69
t
ZLS
1
Max., mA
I
124
OSH
1.59
1.36
t
ZHS
C
LOAD
for derating
30
1
µA
(pF)
I
10 10
Units
IL
ns
ns
2
2 - 69
µA
I
IH
2