ARRIAGX_09 Datasheet, PDF (137/234 Pages) Altera Corporation – The ArriaTM GX family of devices combines 3.125 gigabits per second (Gbps) serial transceivers

Chapter 4: DC and Switching Characteristics
4–15
Operating Conditions
Table 4–14. Arria GX Device DC Operating Conditions (Part 2 of 2) (Note 1)
Symbol
Parameter
Conditions
Device
Min Typ Max Units
R_CONF (4)
Value of I/O pin pull-up
resistor before and during
configuration
Recommended value of
I/O pin external pull-down
resistor before and during
configuration
V_i = 0, V_CCIO = 3.3 V
V_i = 0, V_CCIO = 2.5 V
V_i = 0, V_CCIO = 1.8 V
V_i = 0, V_CCIO = 1.5 V
V_i = 0, V_CCIO = 1.2 V
—
—
10
25 50
k
—
15
35 70
k
—
30 50 100 k
—
40 75 150 k
—
50 90 170 k
—
—
1
2
k
Notes to Table 4–14:
(1) Typical values are for T_A = 25 °C, V_CCINT = 1.2 V, and V_CCIO = 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V.
(2) This value is specified for normal device operation. The value may vary during power-up. This applies for all V_CCIO settings (3.3, 2.5, 1.8, 1.5,
and 1.2 V).
(3) Maximum values depend on the actual TJ and design utilization. For maximum values, refer to the Excel-based PowerPlay Early Power Estimator
(available at PowerPlay Early Power Estimators (EPE) and Power Analyzer) or the Quartus^® II PowerPlay Power Analyzer feature for maximum
values. For more information, refer to “Power Consumption” on page 4–25.
(4) Pin pull-up resistance values will be lower if an external source drives the pin higher than V_CCIO.
I/O Standard Specifications
Table 4–15 through Table 4–38 show the Arria GX device family I/O standard
specifications.
Table 4–15. LVTTL Specifications
Symbol
Parameter
Conditions
Minimum
Maximum
V_CCIO (1)
Output supply voltage
—
3.135
3.465
V_IH
High-level input voltage
—
1.7
4.0
V_IL
Low-level input voltage
—
–0.3
0.8
V_OH
High-level output voltage I_OH = –4 mA (2)
2.4
—
V_OL
Low-level output voltage I_OL = 4 mA (2)
—
0.45
Notes to Table 4–15:
(1) Arria GX devices comply to the narrow range for the supply voltage as specified in the EIA/JEDEC Standard, JESD8-B.
(2) This specification is supported across all the programmable drive strength settings available for this I/O standard.
Units
V
V
V
V
V
Table 4–16. LVCMOS Specifications
Symbol
Parameter
Conditions
Minimum
Maximum
V_CCIO (1)
Output supply voltage
—
3.135
3.465
V_IH
High-level input voltage
—
1.7
4.0
V_IL
Low-level input voltage
—
–0.3
0.8
V_OH
High-level output voltage
V_CCIO = 3.0, I_OH = –0.1 mA (2) V_CCIO – 0.2
—
V_OL
Low-level output voltage
V_CCIO = 3.0, I_OL = 0.1 mA (2)
—
0.2
Notes to Table 4–16:
(1) Arria GX devices comply to the narrow range for the supply voltage as specified in the EIA/JEDEC Standard, JESD8-B.
(2) This specification is supported across all the programmable drive strength available for this I/O standard.
Units
V
V
V
V
V
© December 2009 Altera Corporation
Arria GX Device Handbook, Volume 1