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EP20K200C Datasheet, PDF (63/90 Pages) Altera Corporation – Programmable Logic
APEX 20KC Programmable Logic Device Data Sheet
Table 34. 3.3-V AGP I/O Specifications
Symbol
VCCIO
VREF
VIH
VIL
VOH
VOL
II
Parameter
I/O supply voltage
Reference voltage
High-level input
voltage
Low-level input
voltage
High-level output
voltage
Low-level output
voltage
Input pin leakage
current
Conditions
IOUT = –500 µA
IOUT = 1,500 µA
0 < VIN < VCCIO
Minimum Typical Maximum Units
3.15
3.3
3.45
V
0.39 × VCCIO
0.5 × VCCIO
0.41 × VCCIO V
VCCIO + 0.5
V
0.3 × VCCIO
V
0.9 × VCCIO
3.6
V
0.1 × VCCIO
V
–10
10
µA
Table 35. CTT I/O Specifications
Symbol
Parameter
Conditions
Minimum Typical Maximum Units
VCCIO
VTT/VREF (3)
I/O supply voltage
Termination and
reference voltage
3.0
3.3
3.6
V
1.35
1.5
1.65
V
VIH
High-level input
VREF + 0.2
V
voltage
VIL
Low-level input
voltage
VREF – 0.2
V
II
Input pin leakage 0 < VIN < VCCIO
–10
current
10
µA
VOH
High-level output IOH = –8 mA (1)
VREF + 0.4
V
voltage
VOL
Low-level output
IOL = 8 mA (2)
voltage
VREF – 0.4
V
IO
Output leakage
GND ≤ VOUT ≤ VCCIO
–10
current (when output
is high Z)
10
µA
Notes to Tables 21 through 35:
(1) The IOH parameter refers to high-level output current.
(2) The IOL parameter refers to low-level output current. This parameter applies to open-drain pins as well as output
pins.
(3) VREF specifies center point of switching range.
Figure 31 shows the output drive characteristics of APEX 20KC devices.
Altera Corporation
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