ProASIC3 DC and Switching Characteristics
v1.3 2-19
Overview of I/O Performance
Summary of I/O DC Input and Output Levels – Default I/O Software
Settings
Table 2-18 • Summary of Maximum and Minimum DC Input and Output Levels Applicable to Commercial and
Industrial Conditions—Software Default Settings
Applicable to Advanced I/O Banks
I/O Standard
Drive
Strength
Slew
Rate
V
IL
V
IH
V
OL
V
OH
I
OL
I
OH
Min, V Max, V Min, V Max, V Max, V Min, V mA mA
3.3 V LVTTL /
3.3 V LVCMOS
12 mA High –0.3 0.8 2 3.6 0.4 2.4 12 12
2.5 V LVCMOS 12 mA High –0.3 0.7 1.7 3.6 0.7 1.7 12 12
1.8 V LVCMOS 12 mA High –0.3 0.35 * V
CCI
0.65 * V
CCI
3.6 0.45 V
CCI
– 0.45 12 12
1.5 V LVCMOS 12 mA High –0.3 0.30 * V
CCI
0.7 * V
CCI
3.6 0.25 * V
CCI
0.75 * V
CCI
12 12
3.3 V PCI Per PCI specifications
3.3 V PCI-X Per PCI-X specifications
Note: Currents are measured at 85°C junction temperature.
Table 2-19 • Summary of Maximum and Minimum DC Input and Output Levels Applicable to Commercial and
Industrial Conditions—Software Default Settings
Applicable to Standard Plus I/O Banks
I/O Standard
Drive
Strength
Slew
Rate
V
IL
V
IH
V
OL
V
OH
I
OL
I
OH
Min, V Max, V Min, V Max, V Max, V Min, V mA mA
3.3 V LVTTL /
3.3 V LVCMOS
12 mA High –0.3 0.8 2 3.6 0.4 2.4 12 12
2.5 V LVCMOS 12 mA High –0.3 0.7 1.7 3.6 0.7 1.7 12 12
1.8 V LVCMOS 8 mA High –0.3 0.35 * V
CCI
0.65 * V
CCI
3.6 0.45 V
CCI
– 0.45 8 8
1.5 V LVCMOS 4 mA High –0.3 0.30 * V
CCI
0.7 * V
CCI
3.6 0.25 * V
CCI
0.75 * V
CCI
44
3.3 V PCI Per PCI specifications
3.3 V PCI-X Per PCI-X specifications
Note: Currents are measured at 85°C junction temperature.
Table 2-20 • Summary of Maximum and Minimum DC Input and Output Levels Applicable to Commercial and
Industrial Conditions—Software Default Settings
Applicable to Standard I/O Banks
I/O Standard
Drive
Strength
Slew
Rate
V
IL
V
IH
V
OL
V
OH
I
OL
I
OH
Min, V Max, V Min, V Max, V Max, V Min, V mA mA
3.3 V LVTTL /
3.3 V LVCMOS
8 mA High –0.3 0.8 2 3.6 0.4 2.4 8 8
2.5 V LVCMOS 8 mA High –0.3 0.7 1.7 3.6 0.7 1.7 8 8
1.8 V LVCMOS 4 mA High –0.3 0.35 * V
CCI
0.65 * V
CCI
3.6 0.45 V
CCI
– 0.45 4 4
1.5 V LVCMOS 2 mA High –0.3 0.30 * V
CCI
0.7 * V
CCI
3.6 0.25 * V
CCI
0.75 * V
CCI
22
Note: Currents are measured at 85°C junction temperature.
