afs600 Actel Corporation, afs600 Datasheet - Page 169

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

Detailed I/O DC Characteristics
Table 2-92 • Input Capacitance
Table 2-93 • I/O Output Buffer Maximum Resistances
Symbol
C
C
Standard
Applicable to Pro 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
3.3 V GTL
2.5 V GTL
3.3 V GTL+
2.5 V GTL+
Notes:
1. These maximum values are provided for informational reasons only. Minimum output buffer resistance values depend on V
2. R
3. R
IN
INCLK
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)
Input capacitance
Input capacitance on the clock pin
= (V
= V
CCImax
OLspec
Definition
– V
/ I
OHspec
OLspec
) / I
O H sp e c
Per PCI/PCI-X specification
Drive Strength
V
V
IN
IN
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
4 mA
8 mA
4 mA
8 mA
2 mA
4 mA
6 mA
8 mA
2 mA
4 mA
6 mA
8 mA
= 0, f = 1.0 MHz
= 0, f = 1.0 MHz
Conditions
1
A d v an c ed v1 . 4
R
Min.
PULL-DOWN
(ohms)
Actel Fusion Programmable System Chips
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
2
Max.
8
8
(ohms)
R
PULL-UP
300
150
200
100
225
112
224
112
75
50
33
50
40
22
56
56
22
22
75
37
37
75
–
–
–
–
Units
3
pF
pF
CC
, drive
2-155