afs600 Actel Corporation, afs600 Datasheet - Page 170

• Manufacturer Part Number: afs600
• Description: Actel Fusion Programmable System Chips Mixed-signal Family With Optional Arm Support
• Manufacturer: Actel Corporation

Table 2-93 • I/O Output Buffer Maximum Resistances
2 -1 5 6
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 on V
2. R
3. R
Actel Fusion Programmable System Chips
strength selection, temperature, and process. For board design considerations and detailed output buffer resistances, use the
corresponding IBIS models located on the Actel website at http://www.actel.com/techdocs/models/ibis.html.
(PULL-DOWN-MAX)
(PULL-UP-MAX)
= (V
= V
CCImax
OLspec
– V
/ I
OHspec
OLspec
) / I
O H sp e c
Per PCI/PCI-X specification
Drive Strength
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
A d v a n c e d v 1 . 4
(Continued)
R
PULL-DOWN
(ohms)
100
100
100
100
200
100
200
100
50
25
27
13
44
18
50
50
25
17
11
50
50
25
20
11
50
50
20
20
67
33
33
25
2
(ohms)
R
PULL-UP
300
300
150
150
200
200
100
100
225
112
224
112
50
25
31
15
69
32
75
50
33
50
40
22
56
56
22
22
75
37
37
75
3
CC
, drive