A3P015-1FG144 ACTEL [Actel Corporation], A3P015-1FG144 Datasheet - Page 39

• Manufacturer Part Number: A3P015-1FG144
• Description: ProASIC3 Flash Family FPGAs
• Manufacturer: ACTEL [Actel Corporation]

Table 2-30 • I/O Output Buffer Maximum Resistances
Table 2-31 • I/O Weak Pull-Up/Pull-Down Resistances
Standard
3.3 V LVTTL / 3.3 V LVCMOS
2.5 V LVCMOS
1.8 V LVCMOS
1.5 V LVCMOS
Notes:
1. These maximum values are provided for informational reasons only. Minimum output buffer
2. R
3. R
V
3.3 V
2.5 V
1.8 V
1.5 V
Notes:
1. R
2. R
CCI
resistance values depend on V
board design considerations 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)
(WEAK PULL-UP-MAX)
(WEAK PULL-UP-MAX)
Applicable to Standard I/O Banks
Minimum and Maximum Weak Pull-Up/Pull-Down Resistance Values
= (V
= (V
CCImax
= (V
= (V
OLspec
Min.
10 k
11 k
18 k
19 k
OLspec
CCImax
– V
) / I
R
OHspec
(WEAK PULL-UP)
) / I
OLspec
– V
CCI
(WEAK PULL-UP-MIN)
OHspec
) / I
( )
, drive strength selection, temperature, and process. For
v1.3
OHs pe c
) / I
Drive Strength
1
(WEAK PULL-UP-MIN)
Max.
45 k
55 k
70 k
90 k
2 mA
4 mA
6 mA
8 mA
2 mA
4 mA
6 mA
8 mA
2 mA
4 mA
2 mA
1
ProASIC3 DC and Switching Characteristics
Min.
10 k
12 k
17 k
19 k
R
PULL-DOWN
R
(WEAK PULL-DOWN)
( )
100
100
100
100
200
100
200
50
50
50
50
2
( )
110 k
140 k
R
Max.
45 k
74 k
2
PULL-UP
( )
300
300
150
150
200
200
100
100
225
112
224
3
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