U1AFS250-2FGG256YI
| Model | U1AFS250-2FGG256YI |
| Description | FPGA |
| PDF file | Total 334 pages (File size: 18M) |
| Chip Manufacturer | MICROSEMI |
Device Architecture
Table 2-92 •
Summary of I/O Timing Characteristics – Software Default Settings
Commercial Temperature Range Conditions: T
J
= 70°C, Worst-Case VCC = 1.425 V,
Worst-Case VCCI = I/O Standard Dependent
Applicable to Pro I/Os
External Resistor (Ohm)
Capacitive Load (pF)
Drive Strength (mA)
Slew Rate
t
DOUT
t
EOUT
I/O Standard
3.3 V LVTTL/
12 mA High 35
3.3 V LVCMOS
2.5 V LVCMOS 12 mA High 35
1.8 V LVCMOS 12 mA High 35
1.5 V LVCMOS 12 mA High 35
3.3 V PCI
Per
PCI
spec
–
–
–
–
0.49 2.74 0.03 0.90 1.17 0.32 2.79 2.14 2.45 2.70 4.46 3.81 ns
0.49 2.80 0.03 1.13 1.24 0.32 2.85 2.61 2.51 2.61 4.52 4.28 ns
0.49 2.83 0.03 1.08 1.42 0.32 2.89 2.31 2.79 3.16 4.56 3.98 ns
0.49 3.30 0.03 1.27 1.60 0.32 3.36 2.70 2.96 3.27 5.03 4.37 ns
High 10 25
2
0.49 2.09 0.03 0.78 1.25 0.32 2.13 1.49 2.45 2.70 3.80 3.16 ns
3.3 V PCI-X
Per High 10 25
2
0.49 2.09 0.03 0.77 1.17 0.32 2.13 1.49 2.45 2.70 3.80 3.16 ns
PCI-X
spec
20 mA High 10
20 mA High 10
35 mA High 10
33 mA High 10
8 mA
High 20
25 0.49 1.55 0.03 2.19
25 0.49 1.59 0.03 1.83
25 0.49 1.53 0.03 1.19
25 0.49 1.65 0.03 1.13
50 0.49 2.37 0.03 1.59
25 0.49 2.26 0.03 1.59
50 0.49 1.59 0.03 1.00
25 0.49 1.62 0.03 1.00
50 0.49 1.72 0.03 0.93
25 0.49 1.54 0.03 0.93
–
–
0.49 1.57 0.03 1.36
0.49 1.60 0.03 1.22
–
–
–
–
–
–
–
–
–
–
–
–
0.32 1.52 1.55 0.00 0.00 3.19 3.22 ns
0.32 1.61 1.59 0.00 0.00 3.28 3.26 ns
0.32 1.56 1.53 0.00 0.00 3.23 3.20 ns
0.32 1.68 1.57 0.00 0.00 3.35 3.24 ns
0.32 2.42 2.35 0.00 0.00 4.09 4.02 ns
0.32 2.30 2.03 0.00 0.00 3.97 3.70 ns
0.32 1.62 1.38 0.00 0.00 3.29 3.05 ns
0.32 1.65 1.32 0.00 0.00 3.32 2.99 ns
0.32 1.75 1.37 0.00 0.00 3.42 3.04 ns
0.32 1.57 1.25 0.00 0.00 3.24 2.92 ns
–
–
–
–
–
–
–
–
–
–
–
–
–
–
ns
ns
3.3 V GTL
2.5 V GTL
3.3 V GTL+
2.5 V GTL+
HSTL (I)
HSTL (II)
SSTL2 (I)
SSTL2 (II)
SSTL3 (I)
SSTL3 (II)
LVDS
LVPECL
Notes:
15 mA High 20
17 mA High 30
21 mA High 30
16 mA High 30
24 mA High 30
24 mA High
24 mA High
–
–
1. For specific junction temperature and voltage-supply levels, refer to
for derating values.
2. Resistance is used to measure I/O propagation delays as defined in PCI specifications. See
for connectivity. This resistor is not required during normal operation.
2- 17 0
R e visio n 3
Units
t
PY
S
t
ZHS
t
ZLS
t
DIN
t
DP
t
PY
t
ZH
t
HZ
t
ZL
t
LZ
