Specifications

V
TT
(V)
(Board Termination
Voltage)
V
REF
(V)
(Input Ref
Voltage)
V
CCPD
(V)
(Pre-Driver
Voltage)
V
CCIO
(V)
I/O Standard
Output
Input
(10)
Typically does not
require board
termination
0.752.51.5
V
CCPD
SSTL-15
0.6752.51.35
V
CCPD
SSTL-135
0.6252.51.25
V
CCPD
SSTL-125
0.62.51.2
V
CCPD
HSUL-12
Typically does not
require board
termination
—2.51.5
V
CCPD
Differential SSTL-15
—2.51.35
V
CCPD
Differential SSTL-135
—2.51.25
V
CCPD
Differential SSTL-125
—2.51.2
V
CCPD
Differential HSUL-12
Related Information
MultiVolt I/O Interface in Cyclone V Devices on page 5-10
MultiVolt I/O Interface in Cyclone V Devices
The MultiVolt I/O interface feature allows Cyclone V devices in all packages to interface with systems of
different supply voltages.
Table 5-10: MultiVolt I/O Support in Cyclone V Devices
Output Signal (V)Input Signal (V)V
CCPD
(V)V
CCIO
(V)
1.21.22.51.2
1.251.252.51.25
1.351.352.51.35
1.51.5, 1.82.51.5
1.81.5, 1.82.51.8
2.52.5, 3.02.52.5
3.02.5, 3.0, 3.33.03.0
3.32.5, 3.0, 3.33.33.3
The pin current may be slightly higher than the default value. Verify that the V
OL
maximum and V
OH
minimum voltages of the driving device do not violate the applicable V
IL
maximum and V
IH
minimum
voltage specifications of the Cyclone V device.
The V
CCPD
power pins must be connected to a 2.5 V, 3.0 V, or 3.3 V power supply. Using these power pins
to supply the pre-driver power to the output buffers increases the performance of the output pins.
(10)
Input for the SSTL, HSTL, Differential SSTL, Differential HSTL, LVDS, RSDS, Mini-LVDS, LVPECL, HSUL,
and Differential HSUL are powered by V
CCPD
I/O Features in Cyclone V Devices
Altera Corporation
Send Feedback
CV-52005
MultiVolt I/O Interface in Cyclone V Devices
5-10
2013.06.21