M1A3P400-2FGG144 View Datasheet(PDF) - Unspecified
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M1A3P400-2FGG144 Datasheet PDF : 196 Pages
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ProASIC3 DC and Switching Characteristics
Table 2-26 • I/O Output Buffer Maximum Resistances1
Applicable to Standard I/O Banks
Standard
Drive Strength
RPULL-DOWN
(Ω)2
RPULL-UP
(Ω)3
3.3 V LVTTL / 3.3 V LVCMOS
2 mA
100
300
4 mA
100
300
6 mA
50
150
8 mA
50
150
2.5 V LVCMOS
2 mA
100
200
4 mA
100
200
6 mA
50
100
8 mA
50
100
1.8 V LVCMOS
2 mA
200
225
4 mA
100
112
1.5 V LVCMOS
2 mA
200
224
Notes:
1. These maximum values are provided for informational reasons only. Minimum output buffer
resistance values depend on VCCI, drive 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/download/ibis/default.aspx.
2. R(PULL-DOWN-MAX) = (VOLspec) / IOLspec
3. R(PULL-UP-MAX) = (VCCImax – VOHspec) / IOHspec
Table 2-27 • I/O Weak Pull-Up/Pull-Down Resistances
Minimum and Maximum Weak Pull-Up/Pull-Down Resistance Values
R(WEAK
1
PULL-UP)
(Ω)
R(WEAK
2
PULL-DOWN)
(Ω)
VCCI
3.3 V
Min.
10 k
Max.
45 k
Min.
10 k
Max.
45 k
2.5 V
11 k
55 k
12 k
74 k
1.8 V
18 k
70 k
17 k
110 k
1.5 V
19 k
90 k
19 k
140 k
Notes:
1. R(WEAK PULL-UP-MAX) = (VOLspec) / I(WEAK PULL-UP-MIN)
2. R(WEAK PULL-UP-MAX) = (VCCImax – VOHspec) / I(WEAK PULL-UP-MIN)
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