EP20K200C Datasheet, PDF (61/90 Pages) Altera Corporation – Programmable Logic

APEX 20KC Programmable Logic Device Data Sheet
Table 30. SSTL-2 Class II Specifications
Symbol
V_CCIO
V_TT
V_REF
V_IH
V_IL
V_OH
V_OL
Parameter
Conditions
Minimum Typical Maximum Units
I/O supply voltage
2.375
2.5
2.625
V
Termination voltage
Reference voltage
V_REF – 0.04 V_REF V_REF + 0.04
V
1.15
1.25
1.35
V
High-level input
voltage
V_REF + 0.18
V_CCIO + 0.3
V
Low-level input
voltage
–0.3
V_REF – 0.18
V
High-level output I_OH = –15.2 mA (1) V_TT + 0.76
V
voltage
Low-level output
voltage
I_OL = 15.2 mA (2)
V_TT – 0.76
V
Table 31. SSTL-3 Class I Specifications
Symbol
V_CCIO
V_TT
V_REF
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 Typical Maximum Units
3.0
3.3
3.6
V
V_REF – 0.05 V_REF V_REF + 0.05
V
1.3
1.5
1.7
V
V_REF + 0.2
V_CCIO + 0.3
V
–0.3
V_REF – 0.2
V
V_TT + 0.6
V
V_TT – 0.6
V
Altera Corporation
61