1–6
Chapter 1: Cyclone III Device Datasheet
Electrical Characteristics
(1)
Table 1–5. Cyclone III Devices Bus Hold Parameter (Part 2 of 2)
V
CCIO (V)
Parameter
Condition
1.2
1.5
1.8
2.5
3.0
3.3
Unit
Min Max Min
Max Min Max Min Max Min Max Min Max
Bus-hold
low,
overdrive
current
0 V < VIN < VCCIO
—
125
—
—
175
—
—
200
—
—
300
—
500
—
500
A
Bus-hold
high,
overdrive
current
0 V < VIN < VCCIO
—
–125
–175
–200
–300
1.7
—
–500
2
—
–500 A
Bus-holdtrip
point
—
0.3
0.9 0.375 1.125 0.68 1.07 0.7
0.8
0.8
2
V
Note to Table 1–5:
(1) The bus-hold trip points are based on calculated input voltages from the JEDEC standard.
OCT Specifications
Table 1–6 lists the variation of OCT without calibration across process, temperature,
and voltage.
Table 1–6. Cyclone III Devices Series OCT without Calibration Specifications
Resistance Tolerance
Description
V
CCIO (V)
Unit
Commercial
Max
Industrial and Automotive
Max
3.0
2.5
1.8
1.5
1.2
30
30
40
40
50
50
50
%
%
%
%
%
Series OCT without
calibration
+40
+50
+50
OCT calibration is automatically performed at device power-up for OCT enabled
I/Os.
Table 1–7 lists the OCT calibration accuracy at device power-up.
Table 1–7. Cyclone III Devices Series OCT with Calibration at Device Power-Up Specifications
Calibration Accuracy
Description
VCCIO (V)
Unit
Industrial and Automotive
Max
Commercial Max
3.0
2.5
1.8
1.5
1.2
10
10
10
10
10
10
10
10
10
10
%
%
%
%
%
Series OCT with
calibration at device
power-up
Cyclone III Device Handbook
Volume 2
July 2012 Altera Corporation
INTEL [ INTEL ]
