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AFS090 датащи(PDF) 189 Page - Microsemi Corporation

номер детали AFS090
подробное описание детали  Fusion Family of Mixed Signal FPGAs
PDF  334 Pages
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производитель  MICROSEMI [Microsemi Corporation]
домашняя страница  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

AFS090 датащи(HTML) 189 Page - Microsemi Corporation

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Fusion Family of Mixed Signal FPGAs
R e visio n 2
2 - 173
Applicable to Standard I/O Banks
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
Table 2-97 • I/O Weak Pull-Up/Pull-Down Resistances
Minimum and Maximum Weak Pull-Up/Pull-Down Resistance Values
VCCI
R(WEAK PULL-UP)
1
(ohms)
R(WEAK PULL-DOWN)
2
(ohms)
Min.
Max.
Min.
Max.
3.3 V
10 k
45 k
10 k
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) = (VCCImax – VOHspec) / IWEAK PULL-UP-MIN
2. R(WEAK PULL-DOWN-MAX) = VOLspec / IWEAK PULL-DOWN-MIN
Table 2-96 • I/O Output Buffer Maximum Resistances 1 (continued)
Standard
Drive Strength
RPULL-DOWN
(ohms) 2
RPULL-UP
(ohms) 3
Notes:
1. These maximum values are provided for informational reasons only. Minimum output buffer resistance values depend
on VCC
, drive strength selection, temperature, and process. For board design considerations and detailed output buffer
resistances, use the corresponding IBIS models located on the Microsemi SoC Products Group website:
http://www.microsemi.com/soc/techdocs/models/ibis.html.
2. R(PULL-DOWN-MAX) = VOLspec / IOLspec
3. R(PULL-UP-MAX) = (VCCImax – VOHspec) / IOHspec



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