ProASIC3 DC and Switching Characteristics
2-18
Revision 13
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
Equiv.
Software
Default
Drive
Strength
Option2
Slew
Rate
VIL
VIH
VOL
VOH
IOL1 IOH1
Min.
V
Max.
V
Min.
V
Max.
V
Max.
V
Min.
VmA mA
3.3 V LVTTL /
3.3 V
LVCMOS
12 mA
High –0.3
0.8
2
3.6
0.4
2.4
12
3.3 V
LVCMOS
Wide Range3
100 A
12 mA
High –0.3
0.8
2
3.6
0.2
VCCI – 0.2
0.1
2.5 V
LVCMOS
12 mA
High –0.3
0.7
1.7
2.7
0.7
1.7
12
1.8 V
LVCMOS
12 mA
High –0.3 0.35 * VCCI 0.65 * VCCI 1.9
0.45
VCCI – 0.45 12
12
1.5 V
LVCMOS
12 mA
High –0.3 0.35 * VCCI 0.65 * VCCI 1.6 0.25 * VCCI 0.75 * VCCI 12
12
3.3 V PCI
Per PCI specifications
3.3 V PCI-X
Per PCI-X specifications
Notes:
1. Currents are measured at 85°C junction temperature.
2. Please note that 3.3 V LVCMOS wide range is applicable to 100 A drive strength only. The configuration will NOT
operate at the equivalent software default drive strength. These values are for Normal Ranges ONLY.
3. All LVCMOS 3.3 V software macros support LVCMOS 3.3 V wide range as specified in the JESD-8B specification.