a3p250l Actel Corporation, a3p250l Datasheet - Page 40

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

ProASIC3L DC and Switching Characteristics
Table 2-31 • I/O Output Buffer Maximum Resistances
2 -2 8
Standard
3.3 V LVTTL / 3.3 V LVCMOS
2.5 V LVCMOS
1.8 V LVCMOS
1.5 V LVCMOS
1.2 V LVCMOS
3.3 V PCI/PCI-X
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)
Notes:
1. These maximum values are provided for informational reasons only. Minimum output buffer resistance
2. R
3. R
values depend on V
and detailed output buffer resistances, use the corresponding IBIS models located on the Actel website at
http://www.actel.com/download/ibis/default.aspx.
(PULL-DOWN-MAX)
(PULL-UP-MAX)
Applicable to Pro I/Os
= (V
= (V
CCImax
CCI
OLspec
, drive strength selection, temperature, and process. For board design considerations
– V
) / I
OHspec
OLspec
) / I
OHs pe c
Drive Strength
specification
A d v a n c e v 0. 4
Per PCI/PCI-X
12 mA
16 mA
24 mA
12 mA
16 mA
24 mA
12 mA
16 mA
12 mA
25 mA
25 mA
35 mA
33 mA
15 mA
15 mA
18 mA
14 mA
21 mA
4 mA
8 mA
4 mA
8 mA
2 mA
4 mA
6 mA
8 mA
2 mA
4 mA
6 mA
8 mA
2 mA
8 mA
1
R
PULL-DOWN
(Ω)
TBD
100
100
200
100
200
100
50
25
17
11
50
25
20
11
50
50
20
20
67
33
33
25
11
14
12
15
50
25
27
13
44
18
2
R
PULL-UP
(Ω)
TBD
300
150
200
100
225
112
224
112
75
50
33
50
40
22
56
56
22
22
75
37
37
75
50
25
31
15
69
32
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