External Power Supply Requirements - Altera Cyclone IV Device Handbook

May 2013
CYIV-51011-1.3
CYIV-51011-1.3
This chapter describes information about external power supply requirements,
hot-socketing specifications, power-on reset (POR) requirements, and their
implementation in Cyclone IV devices.
This chapter includes the following sections:
■ "External Power Supply Requirements" on page 11–1
■ "Hot-Socketing Specifications" on page 11–2
■ "Hot-socketing Feature Implementation" on page 11–3
■ "Power-On Reset Circuitry" on page 11–3

External Power Supply Requirements

This section describes the different external power supplies required to power
Cyclone IV devices.
supply pins for Cyclone IV GX and Cyclone IV E devices, respectively.
f
For each Altera recommended power supply's operating conditions, refer to the
Cyclone IV Device Datasheet
f
For power supply pin connection guidelines and power regulator sharing, refer to the
Cyclone IV Device Family Pin Connection
Table 11–1. Power Supply Descriptions for the Cyclone IV GX Devices (Part 1 of 2)
Power Supply Pin
VCCINT
(1)
VCCA
VCCD_PLL
(2)
VCCIO
(3) (4)
,
VCC_CLKIN
VCCH_GXB
VCCA_GXB
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Cyclone IV Device Handbook,
Volume 1
May 2013
11. Power Requirements for Cyclone IV
Table 11–1 and Table 11–2
chapter.
Nominal Voltage Level (V)
1.2
2.5
1.2
1.2, 1.5, 1.8, 2.5, 3.0, 3.3
1.2, 1.5, 1.8, 2.5, 3.0, 3.3
2.5
2.5
list the descriptions of external power
Guidelines.
Description
Core voltage, PCI Express (PCIe) hard IP block, and
transceiver physical coding sublayer (PCS) power
supply
PLL analog power supply
PLL digital power supply
I/O banks power supply
Differential clock input pins power supply
Transceiver output (TX) buffer power supply
Transceiver physical medium attachment (PMA) and
auxiliary power supply
Devices
ISO
9001:2008
Registered
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