HC4GX15 Datasheet, PDF (151/668 Pages) Altera Corporation – HardCopy IV Device Handbook

11. Power Supply and Temperature
Sensing Diode in HardCopy IV Devices
HIV51011-1.1
Altera^® HardCopy^® IV devices and Stratix^® IV devices are manufactured with the
same process technology—they are based on a 0.9 V, 40 nm process. HardCopy IV
devices do not use power for unused logic, memory blocks, or clock trees. Depending
on resource utilization and frequency of operation, HardCopy IV power is typically
reduced to 50% from the Stratix IV FPGA prototype.
Power consumption also affects thermal management. HardCopy IV devices offer a
temperature sensing diode (TSD) that self-monitors the device junction temperature
and that you can use with external circuitry for activities such as controlling air flow
to the HardCopy IV device.
This chapter contains the following sections:
■ “HardCopy IV Device External Power Supply Requirements”
■ “Supporting HardCopy IV and Stratix IV Power Supplies” on page 11–3
■ “HardCopy IV Power Optimization” on page 11–6
■ “Temperature Sensing Diode (TSD)” on page 11–6
■ “External Pin Connections” on page 11–7
HardCopy IV Device External Power Supply Requirements
This section describes the different external power supplies needed to power
HardCopy IV devices. Table 11–1 lists the external power supply pins for
HardCopy IV devices. You can supply some of the power supply pins with the same
external power supply, provided their supply voltage levels are the same.
Table 11–1. HardCopy IV E Power Supply Requirements (Part 1 of 2)
Power Supply
Pin
Stratix IV Voltage
Value (V)
HardCopy IV E Voltage
Value (V)
Description
VCC
0.9
0.9
Core voltage and periphery circuitry power supply
VCCIO
1.2 / 1.5 / 1.8 / 2.5 / 3.0 1.2 / 1.5 / 1.8 / 2.5 / 3.0 I/O power supply
VCCPGM
1.8 / 2.5 / 3.0
1.8 / 2.5 / 3.0
Configuration pins power supply
VCCPD (1)
2.5 / 3.0
2.5 / 3.0
I/O pre-driver power supply
VCCA_PLL
2.5
2.5
PLL analog global power to the PLL regulator
VCCD_PLL
0.9
0.9
PLL digital global power supply
VCC_CLKIN
2.5
2.5
Differential clock input pins power supply (top and
bottom I/O banks only)
VCCBAT
3.0
— (4)
Battery back-up power supply for design security
volatile key register
VCCPT
1.5
— (4)
Power supply for programmable power technology (2)
VCCAUX
2.5
2.5
Power supply for the temperature sensing diode and
POR
VREF
VREF (3)
VREF
Voltage-referenced I/O standards power supply
© January 2010 Altera Corporation
HardCopy IV Device Handbook, Volume 1