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EP4CE115 Datasheet(PDF) 28 Page - Altera Corporation |
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EP4CE115 Datasheet(HTML) 28 Page - Altera Corporation |
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28 / 42 page  1–28 Chapter 1: Cyclone IV Device Datasheet Switching Characteristics Cyclone IV Device Handbook, May 2013 Altera Corporation Volume 3 f For more information about the supported maximum clock rate, device and pin planning, IP implementation, and device termination, refer to Section III: System Performance Specifications of the External Memory Interfaces Handbook. 1 Actual achievable frequency depends on design- and system-specific factors. Perform HSPICE/IBIS simulations based on your specific design and system setup to determine the maximum achievable frequency in your system. High-Speed I/O Specifications Table 1–31 through Table 1–36 list the high-speed I/O timing for Cyclone IV devices. For definitions of high-speed timing specifications, refer to “Glossary” on page 1–37. Table 1–31. RSDS Transmitter Timing Specifications for Cyclone IV Devices (1), (2), (4) (Part 1 of 2) Symbol Modes C6 C7, I7 C8, A7 C8L, I8L C9L Unit Min Typ Max Min Typ Max Min Typ Max Min Typ Max Min Typ Max fHSCLK (input clock frequency) ×10 5 — 180 5 — 155.5 5 — 155.5 5 — 155.5 5 — 132.5 MHz ×8 5 — 180 5 — 155.5 5 — 155.5 5 — 155.5 5 — 132.5 MHz ×7 5 — 180 5 — 155.5 5 — 155.5 5 — 155.5 5 — 132.5 MHz ×4 5 — 180 5 — 155.5 5 — 155.5 5 — 155.5 5 — 132.5 MHz ×2 5 — 180 5 — 155.5 5 — 155.5 5 — 155.5 5 — 132.5 MHz ×1 5 — 360 5 — 311 5 — 311 5 — 311 5 — 265 MHz Device operation in Mbps ×10 100 — 360 100 — 311 100 — 311 100 — 311 100 — 265 Mbps ×8 80 — 360 80 — 311 80 — 311 80 — 311 80 — 265 Mbps ×7 70 — 360 70 — 311 70 — 311 70 — 311 70 — 265 Mbps ×4 40 — 360 40 — 311 40 — 311 40 — 311 40 — 265 Mbps ×2 20 — 360 20 — 311 20 — 311 20 — 311 20 — 265 Mbps ×1 10 — 360 10 — 311 10 — 311 10 — 311 10 — 265 Mbps tDUTY — 45 — 55 45 — 55 45 — 55 45 — 55 45 — 55 % Transmitter channel-to- channel skew (TCCS) — — — 200 —— 200 — — 200 —— 200 ——200 ps Output jitter (peak to peak) — — — 500 —— 500 — — 550 —— 600 ——700 ps tRISE 20 – 80%, CLOAD = 5pF — 500 — — 500 — — 500 — — 500 — — 500 — ps tFALL 20 – 80%, CLOAD = 5pF — 500 — — 500 — — 500 — — 500 — — 500 — ps |
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