
1–8
Chapter 1: Cyclone IV Device Datasheet
Operating Conditions
December 2013
Altera Corporation
OCT Specifications
Table 1–8 lists the variation of OCT without calibration across process, temperature,
and voltage (PVT).
OCT calibration is automatically performed at device power-up for OCT-enabled
I/Os.
Table 1–9 lists the OCT calibration accuracy at device power-up.
Bus hold trip
point
—
0.3
0.9
0.375
1.125
0.68
1.07
0.7
1.7
0.8
2
0.8
2
V
(1) Bus hold trip points are based on the calculated input voltages from the JEDEC standard.
Table 1–7. Bus Hold Parameter for Cyclone IV Devices (Part 2 of 2) (1)
Parameter
Condition
VCCIO (V)
Unit
1.2
1.5
1.8
2.5
3.0
3.3
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Table 1–8. Series OCT Without Calibration Specifications for Cyclone IV Devices
Description
VCCIO (V)
Resistance Tolerance
Unit
Commercial Maximum
Industrial, Extended
industrial, and
Automotive Maximum
Series OCT without
calibration
3.0
±30
±40
%
2.5
±30
±40
%
1.8
±40
±50
%
1.5
±50
%
1.2
±50
%
Table 1–9. Series OCT with Calibration at Device Power
-Up Specifications for Cyclone IV Devices
Description
VCCIO (V)
Calibration Accuracy
Unit
Commercial Maximum
Industrial, Extended
industrial, and
Automotive Maximum
Series OCT with
calibration at device
power
-up
3.0
±10
%
2.5
±10
%
1.8
±10
%
1.5
±10
%
1.2
±10
%