EP20K200C Datasheet, PDF (60/90 Pages) Altera Corporation – Programmable Logic

APEX 20KC Programmable Logic Device Data Sheet
Table 28. GTL+ I/O Specifications
Symbol
V_TT
V_REF
V_IH
V_IL
V_OL
Parameter
Conditions
Termination voltage
Reference voltage
High-level input
voltage
Low-level input
voltage
Low-level output
voltage
I_OL = 36 mA (2)
Minimum
1.35
0.88
V_REF + 0.1
Typical
1.5
1.0
Maximum
1.65
1.12
Units
V
V
V
V_REF – 0.1
V
0.65
V
Table 29. SSTL-2 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 = –7.6 mA (1)
I_OL = 7.6 mA (2)
Minimum Typical Maximum Units
2.375
2.5
2.625
V
V_REF – 0.04 V_REF V_REF + 0.04
V
1.15
1.25
1.35
V
V_REF + 0.18
V_CCIO + 0.3
V
–0.3
V_REF – 0.18
V
V_TT + 0.57
V
V_TT – 0.57
V
60
Altera Corporation