M1AFS250-FGG256I Actel Corporation, M1AFS250-FGG256I Datasheet - Page 188

• Manufacturer Part Number: M1AFS250-FGG256I
• Description: Actel Fusion Family Of Mixed Signal Fpgas
• Manufacturer: Actel Corporation

Device Architecture
Table 2-93 • I/O Output Buffer Maximum Resistances
2- 17 2
Standard
HSTL (I)
HSTL (II)
SSTL2 (I)
SSTL2 (II)
SSTL3 (I)
SSTL3 (II)
Applicable to Advanced I/O Banks
3.3 V LVTTL / 3.3 V LVCMOS
2.5 V LVCMOS
1.8 V LVCMOS
1.5 V LVCMOS
3.3 V PCI/PCI-X
Notes:
1. These maximum values are provided for informational reasons only. Minimum output buffer resistance values depend
2. R
3. R
on V
resistances, use the corresponding IBIS models located on the Actel website:
http://www.actel.com/techdocs/models/ibis.html.
(PULL-DOWN-MAX)
(PULL-UP-MAX)
CC
, drive strength selection, temperature, and process. For board design considerations and detailed output buffer
= (VCCImax – VOHspec) / I
= VOLspec / I
OLspec
Per PCI/PCI-X specification
Drive Strength
O H spec
15 mA
17 mA
21 mA
16 mA
24 mA
12 mA
16 mA
24 mA
12 mA
16 mA
24 mA
12 mA
16 mA
12 mA
8 mA
2 mA
4 mA
6 mA
8 mA
2 mA
4 mA
6 mA
8 mA
2 mA
4 mA
6 mA
8 mA
2 mA
4 mA
6 mA
8 mA
1
R e visio n 1
(continued)
R
PULL-DOWN
(ohms)
100
100
100
100
200
100
200
100
50
25
27
13
44
18
50
50
25
17
50
50
25
20
50
50
20
20
67
33
33
25
11
11
2
R
(ohms)
PULL-UP
300
300
150
150
200
200
100
100
225
224
112
112
50
25
31
15
69
32
75
50
33
50
40
22
56
56
22
22
75
37
37
75
3