EP3C5E144C8N Datasheet, PDF (286/348 Pages) Altera Corporation – Ability to disable external JTAG port

1–6
Chapter 1: Cyclone III Device Data Sheet
Electrical Characteristics
Table 1–5. Cyclone III Devices Bus Hold Parameter (Part 2 of 2) ⁽¹⁾
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 < V_IN < V_CCIO — 125 — 175 — 200 — 300 — 500 — 500 μA
Bus-hold
high,
overdrive
current
0 V < V_IN < V_CCIO — –125 — –175 — –200 — –300 — –500 — –500 μA
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
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
Description
Series OCT without
calibration
V_CCIO (V)
3.0
2.5
1.8
1.5
1.2
Resistance Tolerance
Commercial
Max
Industrial and Automotive ^Unit
Max
±30
±40
%
±30
±40
%
+40
±50
%
+50
±50
%
+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
Description
Series OCT with
calibration at device
power-up
Calibration Accuracy
V_CCIO (V)
Commercial Max
Industrial and Automotive
Max
Unit
3.0
±10
±10
%
2.5
±10
±10
%
1.8
±10
±10
%
1.5
±10
±10
%
1.2
±10
±10
%
Cyclone III Device Handbook
Volume 2
December 2011 Altera Corporation