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EP2AGX260FF35I3N Datasheet, PDF (14/78 Pages) Altera Corporation – Device Datasheet for Arria II Devices
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Chapter 1: Device Datasheet for Arria II Devices
Electrical Characteristics
Table 1–19 lists the weak pull-up resistor values for Arria II GZ devices.
Table 1–19. Internal Weak Pull-Up Resistor for Arria II GZ Devices (Note 1), (2)
Symbol
Description
Conditions
Min
Typ
Max
Unit
Value of the I/O pin pull-up
resistor before and during
VCCIO = 3.0 V ±5% (3)
—
25
VCCIO = 2.5 V ±5% (3)
—
25
RPU
configuration, as well as user
VCCIO = 1.8 V ±5% (3)
—
25
mode if the programmable
pull-up resistor option is enabled.
VCCIO = 1.5 V ±5% (3)
—
25
VCCIO = 1.2 V ±5% (3)
—
25
—
k
—
k
—
k
—
k
—
k
Notes to Table 1–19:
(1) All I/O pins have an option to enable weak pull-up except configuration, test, and JTAG pins.
(2) The internal weak pull-down feature is only available for the JTAG TCK pin. The typical value for this internal weak pull-down resistor is
approximately 25 k 
(3) Pin pull-up resistance values may be lower if an external source drives the pin higher than VCCIO.
Hot Socketing
Table 1–20 lists the hot-socketing specification for Arria II GX and GZ devices.
Table 1–20. Hot Socketing Specifications for Arria II Devices
Symbol
Description
Maximum
IIIOPIN(DC)
DC current per I/O pin
300 A
IIOPIN(AC)
AC current per I/O pin
8 mA (1)
IXCVRTX(DC)
DC current per transceiver TX pin
100 mA
IXCVRRX(DC)
DC current per transceiver RX pin
50 mA
Note to Table 1–20:
(1) The I/O ramp rate is 10 ns or more. For ramp rates faster than 10 ns, |IIOPIN| = C dv/dt, in which “C” is I/O pin
capacitance and “dv/dt” is slew rate.
Schmitt Trigger Input
The Arria II GX device supports Schmitt trigger input on the TDI, TMS, TCK, nSTATUS,
nCONFIG, nCE, CONF_DONE, and DCLK pins. A Schmitt trigger feature introduces
hysteresis to the input signal for improved noise immunity, especially for signals with
slow edge rates.
Table 1–21 lists the hysteresis specifications across the supported VCCIO range for
Schmitt trigger inputs in Arria II GX devices.
Table 1–21. Schmitt Trigger Input Hysteresis Specifications for Arria II GX Devices
Symbol
VSchmitt
Description
Hysteresis for Schmitt trigger input
Condition (V)
VCCIO = 3.3
VCCIO = 2.5
VCCIO = 1.8
VCCIO = 1.5
Minimum
Unit
220
mV
180
mV
110
mV
70
mV
Arria II Device Handbook Volume 3: Device Datasheet and Addendum
July 2012 Altera Corporation
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