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
Option
2
Slew
Rate
VIL VIH VOL VOH IOL
1
IOH
1
Min.
V
Max.
V
Min.
V
Max.
V
Max.
V
Min.
VmAmA
3.3 V LVTTL /
3.3 V
LVCMOS
12 mA 12 mA High –0.3 0.8 2 3.6 0.4 2.4 12 12
3.3 V
LVCMOS
Wide Range
3
100 µA 12 mA High –0.3 0.8 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 2.7 0.7 1.7 12 12
1.8 V
LVCMOS
12 mA 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 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 µA 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.