Intel FPGA - Operating Conditions

2.4 Operating Conditions
Use the provided maximum ratings, recommended operating conditions and DC
operating conditions to ensure the correct usage of the USB Download Cable.
Table 4. Absolute Maximum Ratings
Symbol Parameter Conditions Min Max Unit
V
CC(TRGT)
Target supply voltage With respect to ground –0.3 5.5 V
V
CC(USB)
USB supply voltage With respect to ground –0.5 6.0 V
I
I
Input current
TDO or dataout
–10.0 10.0 mA
I
o
Output current for Rev. A
or Rev. B cable
TCK, TMS, TDI, nCS, nCE
–20.0 20.0 mA
Output current for Rev. C
cable
–50.0 50.0 mA
Table 5. Recommended Operating Conditions
Symbol Parameter Conditions Min Max Unit
V
CC(TRGT)
Target supply voltage, 5.0-
V operation
— 4.75 5.25 V
Target supply voltage, 3.3-
V operation
— 3.0 3.6 V
Target supply voltage, 2.5-
V operation
— 2.375 2.625 mA
Target supply voltage, 1.8-
V operation
— 1.71 1.89 mA
Target supply voltage, 1.5-
V operation
— 1.43 1.57 mA
Table 6. DC Operating Conditions for USB Download Cable Rev. A and B
Symbol Parameter Conditions Min Max Unit
V
IH
High-level input
voltage
— V
CC(TRGT)
– 0.2 — V
V
IL
Low-level input
voltage
— — 0.15 V
V
OH
5.0-V high-level
output voltage
V
CC(TRGT)
= 4.5 V, I
OH
= 1 mA 4.4 — V
3.3-V high-level
output voltage
V
CC(TRGT)
= 3.0 V, I
OH
= 1 mA 2.9 — V
2.5-V high-level
output voltage
V
CC(TRGT)
= 2.375 V, I
OH
= 1 mA 2.275 — V
1.8-V high-level
output voltage
V
CC(TRGT)
= 1.71 V, I
OH
= 1 mA 1.61 — V
1.5-V high-level
output voltage
V
CC(TRGT)
= 1.43 V, I
OH
= 1 mA 1.33 — V
V
OL
5.0-V low-level
output voltage
V
CC(TRGT)
= 5.5 V, I
OL
= 1 mA — 0.125 V
continued...
2 Specifications for USB Download Cable
Intel FPGA USB Download Cable User Guide
6