HC20K400 Datasheet, PDF (29/36 Pages) Altera Corporation – HardCopy APEX Device Family

Recommended Operating Conditions
Table 10–16. SSTL-3 Class II Specifications
Symbol
V_{C CIO}
V_TT
V_{R EF}
V_IH
V_IL
V_OH
V_OL
Parameter
Conditions
I/O supply voltage
Termination voltage
Reference voltage
High-level input
voltage
Low-level input
voltage
High-level output
voltage
Low-level output
voltage
I_OH = –16 mA (1)
I_OL = 16 mA (2)
Minimum
3.0
V_REF – 0.05
1.3
V_REF + 0.2
Typical
3.3
V_REF
1.5
Maximum
3.6
V_REF + 0.05
1.7
V_CCIO + 0.3
Units
V
V
V
V
–0.3
V_REF – 0.2
V
V_TT + 0.8
V
V_TT – 0.8
V
Table 10–17. HSTL Class I I/O Specifications
Symbol
V_{C CIO}
V_TT
V_{R EF}
V_IH
V_IL
V_OH
V_OL
Parameter
Conditions
I/O supply voltage
Termination voltage
Reference voltage
High-level input
voltage
Low-level input
voltage
High-level output
voltage
Low-level output
voltage
I_OH = –8 mA (1)
I_OL = 8 mA (2)
Minimum
1.71
V_REF – 0.05
0.68
V_REF + 0.1
Typical
1.8
V_REF
0.75
Maximum
1.89
V_REF + 0.05
0.90
V_CCIO + 0.3
Units
V
V
V
V
–0.3
V_REF – 0.1
V
V_CCIO – 0.4
V
0.4
V
Table 10–18. LVPECL Specifications (Part 1 of 2)
Symbol
V_{C CIO}
V_IH
V_IL
V_OH
Parameter
Output Supply
Voltage
Low-level input
voltage
High-level input
voltage
Low-level output
voltage
Minimum
3.135
1,300
2,100
1,450
Typical
3.3
Maximum
3.465
1,700
2,600
1,650
Units
V
mV
mV
mV
Altera Corporation
September 2008
10–9