HC1S25 Datasheet, PDF (38/110 Pages) Altera Corporation – HardCopy Stratix Device Family

Recommended Operating Conditions
Table 4–29. 1.5-V Differential HSTL Specifications
Symbol
Parameter
V_{C CIO}
I/O supply voltage
V_DIF (DC) DC input differential
voltage
V_CM (DC) DC common mode input
voltage
V_DIF (AC) AC differential input
voltage
Conditions
Minimum
1.4
0.2
0.68
0.4
Typical
1.5
Maximum Unit
1.6
V
V
0.9
V
V
Table 4–30. CTT I/O Specifications
Symbol
Parameter
Conditions
V_{C CIO}
V_TT/V_REF
Output supply voltage
Termination and input
reference voltage
V_IH
High-level input voltage
V_IL
Low-level input voltage
V_OH
High-level output voltage I_OH = –8 mA
V_OL
Low-level output voltage I_OL = 8 mA
I_O
Output leakage current GND ≤ V_{OU T} ≤
(when output is high Z) V_{C CI O}
Minimum
2.05
1.35
V_REF + 0.2
V_REF + 0.4
–10
Typical
3.3
1.5
Maximum Unit
3.6
V
1.65
V
V
V_REF – 0.2 V
V
V_REF – 0.4 V
10
μA
Table 4–31. Bus Hold Parameters
Parameter
Conditions
Low sustaining current V_IN > V_IL (maximum)
High sustaining current V_IN < V_IH (minimum)
Low overdrive current 0 V < V_IN < V_CCIO
High overdrive current 0 V < V_IN < V_CCIO
Bus hold trip point
V_CCIO Level
1.5 V
1.8 V
2.5 V
3.3 V Unit
Min Max Min Max Min Max Min Max
25
30
50
70
μA
–25
–30
–50
–70
μA
160
200
300
500 μA
–160
–200
–300
–500 μA
0.5 1.0 0.68 1.07 0.7 1.7 0.8 2.0 V
4–14
Altera Corporation
September 2008