Guideline: Ensure Compatible V; Ccio And; Ccio Ccpd; Ccpd Voltage In The Same Bank - Altera Cyclone V Device Handbook

5-18

Guideline: Ensure Compatible V

Examples:
If bank 3B uses a 3.0 V V
If bank 8A uses a 2.5 V V
For more information about the I/O banks available in each device package, refer to the related links.
Related Information
Modular I/O Banks for Cyclone V E Devices
Modular I/O Banks for Cyclone V GX Devices
Modular I/O Banks for Cyclone V GT Devices
Modular I/O Banks for Cyclone V SE Devices
Modular I/O Banks for Cyclone V SX Devices
Modular I/O Banks for Cyclone V ST Devices
Guideline: Ensure Compatible V
When planning I/O bank usage for Cyclone V devices, you must ensure the V
with the V
CCPD
possible V
CCIO
Examples:
is connected to 2.5 V—
VCCPD3B
1.5 V, 1.8 V, or 2.5 V.
is connected to 3.0 V—
VCCPD3B
Guideline: Pin Restrictions
VREF
For the Cyclone V devices, consider the following
You cannot assign shared
SSTL, HSTL, and HSUL I/O standards do not support shared
or pin is a shared
B1n
support.
You must perform signal integrity analysis using your board design when using a shared
determine the F
For more information about pin capacitance of the
Related Information
Cyclone V Device Datasheet

Guideline: Observe Device Absolute Maximum Rating for 3.3 V Interfacing

To ensure device reliability and proper operation when you use the device for 3.3 V I/O interfacing, do not
violate the absolute maximum ratings of the device. For more information about absolute maximum rating
and maximum allowed overshoot during transitions, refer to the device datasheet.
Altera Corporation
and V
CCIO CCPD
, bank 4A must also use 3.0 V V
CCPD
, bank 7A must also use 2.5 V V
CCPD
and V
CCIO
voltage of the same bank. Some banks may share the same V
voltages that can be used on banks that share
VCCIO
VCCIO
pins as LVDS or external memory interface pins.
VREF
pin, the corresponding
VREF
for your system.
MAX
Voltage in the Same Bank
on page 5-22
on page 5-23
on page 5-24
on page 5-25
on page 5-26
on page 5-27
Voltage in the Same Bank
CCPD
VCCPD
pins for banks 3B and 4A can be connected 1.2 V, 1.25 V, 1.35 V,
pins for banks 3B and 4A must be connected to 3.0 V.
pins guidelines:
VREF
pin pair do not have LVDS transmitter
B1p/B1n
pins, refer to the device datasheet.
VREF
.
CCPD
.
CCPD
voltage is compatible
CCIO
power pin. This limits the
CCPD
power pins.
pins. For example, if a particular
VREF
I/O Features in Cyclone V Devices
CV-52005
2014.01.10
B1p
pin to
VREF
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