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Designing with 1.5-V Devices
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Designing with 1.5-V Devices
The Cyclone® FPGA family provides the best solution for high-volume,
cost-sensitive applications. A Cyclone device is fabricated on a leadingedge
1.5-V, 0.13-μm, all-layer copper SRAM process.
Using a 1.5-V operating voltage provides the following advantages:
■ Lower power consumption compared to 2.5-V or 3.3-V devices.
■ Lower operating temperature.
■ Less need for fans and other temperature-control elements.
Since many existing designs are based on 5.0-V, 3.3-V and 2.5-V power
supplies, a voltage regulator may be required to lower the voltage supply
level to 1.5-V. This document provides guidelines for designing with
Cyclone devices in mixed-voltage and single-voltage systems and
provides examples using voltage regulators. This document also includes
information on:
■ Power Sequencing & Hot Socketing
■ Using MultiVolt I/O Pins
■ Voltage Regulators
■ 1.5-V Regulator Application Examples
■ Board Layout
■ Power Sequencing & Hot Socketing
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