Chapter 1: Cyclone III Device Data Sheet
1–5
Electrical Characteristics
Table 1–3. Cyclone III Devices Recommended Operating Conditions (Note 1), (2) (Part 2 of 2)
Symbol
Parameter
Conditions
Min
0
Typ
—
Max
85
Unit
For commercial use
For industrial use
°C
°C
–40
—
100
TJ
Operating junction temperature
For extended temperature
–40
–40
—
—
—
—
—
125
125
°C
°C
(5)
For automotive use
Standard power-on reset
50 µs
50 µs
—
50 ms
3 ms
10
—
—
mA
(POR) (6)
tRAMP
Power supply ramp time
Fast POR (7)
Magnitude of DC current across
PCI-clamp diode when enabled
IDiode
—
Notes to Table 1–3:
(1) VCCIO for all I/O banks must be powered up during device operation. All VCCA pins must be powered to 2.5 V (even when PLLs are not used), and
must be powered up and powered down at the same time.
(2) VCCD_PLL must always be connected to VCCINT through a decoupling capacitor and ferrite bead.
(3) The VCC must rise monotonically.
(4) All input buffers are powered by the VCCIO supply.
(5) The I7 devices support extended operating junction temperature up to 125°C (usual range is –40°C to 100°C). When using I7 devices at the
extended junction temperature ranging from –40°C to 125°C, select C8 as the target device when designing in the Quartus® II software. The I7
devices meet all C8 timing specifications when I7 devices operate beyond 100°C and up to 125°C.
(6) POR time for Standard POR ranges between 50–200 ms. Each individual power supply should reach the recommended operating range within
50 ms.
(7) POR time for Fast POR ranges between 3–9 ms. Each individual power supply should reach the recommended operating range within 3 ms.
DC Characteristics
This section lists the I/O leakage current, pin capacitance, on-chip termination (OCT)
tolerance, and bus hold specifications for Cyclone III devices.
Supply Current
Standby current is the current the device draws after the device is configured with no
inputs or outputs toggling and no activity in the device. Use the Excel-based early
power estimator (EPE) to get the supply current estimates for your design because
these currents vary largely with the resources used. Table 1–4 lists I/O pin leakage
current for Cyclone III devices.
Table 1–4. Cyclone III Devices I/O Pin Leakage Current (Note 1), (2) (Part 1 of 2)
Symbol
II
IOZ
Parameter
Conditions
Device
Min
Typ
Max
Unit
Input pin leakage current
VI = 0 V to VCCIOMAX
—
–10
—
10
μA
Tristated I/O pin leakage
current
VO = 0 V to VCCIOMAX
—
–10
—
10
μA
© January 2010 Altera Corporation
Cyclone III Device Handbook, Volume 2
ALTERA [ ALTERA CORPORATION ]
