EP1S40B956C5 Altera, EP1S40B956C5 Datasheet - Page 843

• Manufacturer Part Number: EP1S40B956C5
• Description: IC STRATIX FPGA 40K LE 956-BGA
• Manufacturer: Altera
• Series: Stratix®r

Specifications of EP1S40B956C5

• Number Of Logic Elements/cells: 41250
• Number Of Labs/clbs: 4125
• Total Ram Bits: 3423744
• Number Of I /o: 683
• Voltage - Supply: 1.425 V ~ 1.575 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 956-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -

Figure 14–1. Cyclone FPGAs Interface with 3.3-V & 2.5-V Devices
Voltage
Regulators
Altera Corporation
January 2005
3.3 V
2.5 V
1.5 V
3.3-V Device
Figure 14–1
devices while operating with a 1.5-V V
save power.
This section explains how to generate a 1.5-V supply from another system
supply. Supplying power to the 1.5-V logic array and/or I/O pins
requires a 5.0-V- or 3.3-V-to-1.5-V voltage regulator. A linear regulator is
ideal for low-power applications because it minimizes device count and
has acceptable efficiency for most applications. A switching voltage
regulator provides optimal efficiency. Switching regulators are ideal for
high-power applications because of their high efficiency.
This section will help you decide which regulator to use in your system,
and how to implement the regulator in your design. There are several
companies that provide voltage regulators for low-voltage devices, such
as Linear Technology Corporation, Maxim Integrated Products, Intersil
Corporation (Elantec), and National Semiconductor Corporation.
3.3-V TTL
3.3-V CMOS
shows how Cyclone FPGAs interface with 3.3-
Cyclone Device
V
V
V
CCINT
CCIO1
CCIO2
= 1.5 V
= 2.5 V
= 3.3 V
2.5-V TTL
2.5-V CMOS
CCINT
Stratix Device Handbook, Volume 2
to increase performance and
Designing with 1.5-V Devices
2.5-V Device
-V
and 2.5-V
14–3