2–6
Chapter 2: MasterBlaster Serial/USB Communications Cable Data Sheet
Operating Conditions
Table 2–2. MasterBlaster Cable Absolute Maximum Ratings
Symbol
V CC
V I
Parameter
Supply voltage
DC input voltage
Conditions
With respect to ground
With respect to ground
Min
–0.5
–0.5
Max
7.0
7.0
Unit
V
V
Table 2–3. MasterBlaster Cable Recommended Operating Conditions
Symbol
V CC
Parameter
Board header supply voltage,
Conditions
Min
4.5
Max
5.5
Unit
V
5.0-V operation
Board header supply voltage,
3.0
3.6
V
3.3-V operation
Notes for Table 2–3
(1) The DC adapter supply voltage has a minimum value of 3.0 V, a maximum value of 16.0 V, and a power consumption of 1 W (VCC can be at 5.0
V, 3.3 V, or 2.5 V).
(2) The 5.0-V USB cable supply voltage has a minimum value of 4.5 V and a maximum value of 5.5 V (VCC can be at 5.0 V, 3.3 V, or 2.5 V).
Table 2–4. MasterBlaster Cable DC Operating Conditions
Symbol
Parameter
Conditions
Min
Max
Unit
V IH
V IL
V OH
High-level input voltage
Low-level input voltage
5.0-V high-level TTL
V CC = V IO
V CC = V IO
TTL load. V CC = V IO = 4.5 V, I OH = 8 mA
0.25 ¥ V IO + 0.3 V
3.2
0.25 ¥ V IO
V
V
V
output voltage
3.3-V high-level TTL
TTL load. V CC = V IO = 3.0 V, I OH = 4 mA
2.4
V
output voltage
5.0-V high-level CMOS output
voltage
3.3-V high-level CMOS output
voltage
2.5-V high-level CMOS output
voltage
CMOS load. V CC = V IO = 4.5 V,
I OH = 0.1 mA
CMOS load. V CC = V IO = 3.0 V,
I OH = 0.1 mA
CMOS load. V CC = V IO = 2.3 V,
I OH = 0.1 mA
4.0
2.7
2.0
V
V
V
V OL
5.0-V low-level TTL output
TTL load. V CC = V IO = 4.5 V, I OL = 8 mA
0.4
V
voltage
3.3-V low-level TTL output
TTL load. V CC = V IO = 3.0 V, I OL = 4 mA
0.4
V
voltage
5.0-V low-level CMOS output
voltage
3.3-V low-level CMOS output
voltage
2.5-V low-level CMOS output
voltage
CMOS load. V CC = V IO = 4.5 V,
I OL = 0.1 mA
CMOS load. V CC = V IO = 3.0 V,
I OL = 0.1 mA
CMOS load. V CC = V IO = 2.3 V,
I OL = 0.1 mA
0.1
0.1
0.1
V
V
V
P
Operating power
1.0
W
? July 2008 Altera Corporation
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