2–6
Chapter 2: USB-Blaster Specifications
Operating Conditions
Table 2–5. USB-Blaster Cable (Rev. A & B) DC Operating Conditions
Symbol
V OH
Parameter
5.0-V high-level
Conditions
V CC(TRGT) = 4.5 V, I OH = 1 mA
Min
4.4
Max
Unit
V
output voltage
3.3-V high-level
V CC(TRGT) = 3.0 V, I OH = 1 mA
2.9
V
output voltage
2.5-V high-level
output voltage
1.8-V high-level
V CC(TRGT) = 2.375 V,
I OH = 1 mA
V CC(TRGT) = 1.71 V, I OH = 1 mA
2.275
1.61
V
V
output voltage
1.5-V high-level
V CC(TRGT) = 1.43 V, IOH = 1 mA
1.33
V
output voltage
V OL
5.0-V low-level
V CC(TRGT) = 5.5 V, I OL = 1 mA
0.125
V
output voltage
3.3-V low-level
V CC(TRGT) = 3.6 V, I OL = 1 mA
0.125
V
output voltage
2.5-V low-level
V CC(TRGT) = 2.625 V, I OL = 1 mA
0.125
V
output voltage
1.8-V low-level
V CC(TRGT) = 1.89 V, I OL = 1 mA
0.125
V
output voltage
1.5-V low-level
V CC(TRGT) = 1.57 V, IOL = 1 mA
0.125
V
output voltage
I CC(TRGT)
Operating current
(Typical I CC(TRGT) = 16 uA)
100
uA
(No Load)
Table 2–6. USB-Blaster Cable (Rev. C) DC Operating Conditions
Symbol
Pa r ame t e r
Condi t ions
Min
Max
Uni t
V IH
High-level input voltage V CC(TRGT) >= 2.0 V
V CC(TRGT) < 2.0 V
2.0
V CC(TRGT)
V
V
V IL
V OH
Low-level input voltage
5.0-V high-level output
V CC(TRGT) >= 2.0 V
V CC(TRGT) < 2.0 V
V CC(TRGT) = 4.5 V, I OH = -10 mA
3.8
0.8
0
V
V
V
voltage
3.3-V high-level output
V CC(TRGT) = 3.0 V, I OH = -8 mA
2.3
V
voltage
2.5-V high-level output
V CC(TRGT) = 2.375 V, I OH = -6 mA
1.8
V
voltage
1.8-V high-level output
V CC(TRGT) = 1.71 V, I OH = -4 mA
1.2
V
voltage
? April 2009 Altera Corporation
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