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A3PE1500-FGG484 Datasheet, PDF (30/162 Pages) Microsemi Corporation – ProASIC3E Flash Family FPGAs with Optional Soft ARM Support
ProASIC3E DC and Switching Characteristics
Overview of I/O Performance
Summary of I/O DC Input and Output Levels – Default I/O Software
Settings
Table 2-13 • Summary of Maximum and Minimum DC Input and Output Levels
Applicable to Commercial and Industrial Conditions
Equivalent
Software
Default
Drive
Drive Strength Slew Min.
I/O Standard Strength Option1 Rate V
VIL
Max.
V
VIH
VOL
VOH IOL3 IOH3
Min.
V
Max.
V
Max.
V
Min.
V
mA mA
3.3 V LVTTL / 12 mA 12 mA High –0.3
0.8
3.3 V
LVCMOS
2
3.6
0.4
2.4
12 12
3.3 V
100 µA 12 mA High –0.3
0.8
LVCMOS
Wide Range
2
3.6
0.2
VCCI – 0.2 0.1 0.1
2.5 V
LVCMOS
12 mA 12 mA High –0.3
0.7
1.7
3.6
0.7
1.7
12 12
1.8 V
LVCMOS
12 mA 12 mA High –0.3 0.35 * VCCI 0.65 * VCCI 3.6 0.45 VCCI – 0.45 12 12
1.5 V
LVCMOS
12 mA 12 mA High –0.3 0.30 * VCCI 0.7 * VCCI 3.6 0.25 * VCCI 0.75 * VCCI 12 12
3.3 V PCI
Per PCI Specification
3.3 V PCI-X
Per PCI-X Specification
3.3 V GTL
20 mA2 20 mA2 High –0.3 VREF – 0.05 VREF + 0.05 3.6
0.4
2.5 V GTL
20 mA2 20 mA2 High –0.3 VREF – 0.05 VREF + 0.05 3.6
0.4
–
20 20
–
20 20
3.3 V GTL+ 35 mA 35 mA High –0.3 VREF – 0.1 VREF + 0.1 3.6
0.6
–
35 35
2.5 V GTL+ 33 mA 33 mA High –0.3 VREF – 0.1 VREF + 0.1 3.6
0.6
–
33 33
HSTL (I)
HSTL (II)
8 mA
8 mA High –0.3 VREF – 0.1 VREF + 0.1 3.6
0.4
VCCI – 0.4 8 8
15 mA2 15 mA2 High –0.3 VREF – 0.1 VREF + 0.1 3.6
0.4
VCCI – 0.4 15 15
SSTL2 (I)
15 mA 15 mA High –0.3 VREF – 0.2 VREF + 0.2 3.6 0.54 VCCI – 0.62 15 15
SSTL2 (II)
18 mA 18 mA High –0.3 VREF – 0.2 VREF + 0.2 3.6 0.35 VCCI – 0.43 18 18
SSTL3 (I)
14 mA 14 mA High –0.3 VREF – 0.2 VREF + 0.2 3.6
0.7
VCCI – 1.1 14 14
SSTL3 (II)
21 mA 21 mA High –0.3 VREF – 0.2 VREF + 0.2 3.6
0.5
VCCI – 0.9 21 21
Notes:
1. The minimum drive strength for any LVCMOS 3.3 V software configuration when run in wide range is ±100 µA. Drive
strength displayed in the software is supported for normal range only. For a detailed I/V curve, refer to the IBIS models.
2. Output drive strength is below JEDEC specification.
3. Currents are measured at 85°C junction temperature.
4. Output Slew Rates can be extracted from IBIS Models, located at
http://www.microsemi.com/soc/download/ibis/default.aspx.
2-16
Revision 13