This chapter describes the electrical and switching characteristics for Cyclone IV devices. Electrical characteristics include operating conditions and power
consumption. Switching characteristics include transceiver specifications, core, and periphery performance. This chapter also describes I/O timing, including
programmable I/O element (IOE) delay and programmable output buffer delay.
This chapter includes the following sections:
■ “Operating Conditions” on page 1–1
■ “Power Consumption” on page 1–16
■ “Switching Characteristics” on page 1–16
■ “I/O Timing” on page 1–37
■ “Glossary” on page 1–37
Feature
Operating Conditions
When Cyclone IV devices are implemented in a system, they are rated according to a set of defined parameters. To maintain the highest possible performance and reliability of Cyclone IV devices, you must consider the operating requirements described in this chapter.
Cyclone IV devices are offered in commercial, industrial, extended industrial and, automotive grades. Cyclone IV E devices offer –6 (fastest), –7, –8, –8L, and –9L speed grades for commercial devices, –8L speed grades for industrial devices, and –7 speed grade for extended industrial and automotive devices. Cyclone IV GX devices offer –6 (fastest), –7, and –8 speed grades for commercial devices and –7 speed grade for industrial devices.
