User manual

Although a 10-pin surface mount header can be used for the download cable, Altera recommends using a
through-hole connector. Through-hole connectors hold up better under the repeated insertion and
removal.
Operating Conditions
The following tables summarize the maximum ratings, recommended operating conditions, and DC
operating conditions for the USB-Blaster II cable.
Table 2-3: USB-Blaster II Cable Absolute Maximum Ratings
Symbol Parameter Conditions Min Max Unit
V
CC(TRGT)
Target supply voltage With respect to ground –0.5 6.5 V
V
CC(USB)
USB supply voltage With respect to ground –0.5 6.0 V
I
I
Target side input current Pin 7 –100.0 100.0 mA
I
I(USB)
USB supply current VBUS – 200.0 mA
I
o
Target side output current Pins: 1, 5, 6, 8, 9 –50.0 50.0 mA
Table 2-4: USB-Blaster II Cable 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 V
Target supply voltage, 1.8-V
operation
— 1.71 1.89 V
Target supply voltage, 1.5-V
operation
— 1.43 1.57 V
Table 2-5: USB-Blaster II Cable DC Operating Conditions
Symbol Parameter Conditions Min Max Unit
V
IH
High-level input voltage V
CC(TRGT)
>= 2.0 V 0.7 x
V
CC(TRGT
)
— V
High-level input voltage V
CC(TRGT)
< 2.0 V 0.65 x
V
CC(TRGT
)
— V
UG-01150
2015.12.11
Operating Conditions
2-5
USB-Blaster II Download Cable Specifications
Altera Corporation
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