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EP4CE115F23I7N Datasheet(PDF) 32 Page - Altera Corporation |
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EP4CE115F23I7N Datasheet(HTML) 32 Page - Altera Corporation |
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32 / 42 page  1–32 Chapter 1: Cyclone IV Device Datasheet Switching Characteristics Cyclone IV Device Handbook, May 2013 Altera Corporation Volume 3 External Memory Interface Specifications The external memory interfaces for Cyclone IV devices are auto-calibrating and easy to implement. tDUTY — 45 5545 55 4555 45 5545 55% TCCS — — 200 — 200 — 200 — 200 — 200 ps Output jitter (peak to peak) — — 500 — 500 — 550 — 600 — 700 ps tLOCK (2) — — 1— 1— 1— 1— 1 ms Notes to Table 1–35: (1) Cyclone IV E—emulated LVDS transmitter is supported at the output pin of all I/O Banks. Cyclone IV GX—emulated LVDS transmitter is supported at the output pin of I/O Banks 3, 4, 5, 6, 7, 8, and 9. (2) tLOCK is the time required for the PLL to lock from the end-of-device configuration. (3) Cyclone IV E 1.0 V core voltage devices only support C8L, C9L, and I8L speed grades. Cyclone IV E 1.2 V core voltage devices only support C6, C7, C8, I7, and A7 speed grades. Cyclone IV GX devices only support C6, C7, C8, and I7 speed grades. Table 1–35. Emulated LVDS Transmitter Timing Specifications for Cyclone IV Devices (1), (3) (Part 2 of 2) Symbol Modes C6 C7, I7 C8, A7 C8L, I8L C9L Unit Min Max Min Max Min Max Min Max Min Max Table 1–36. LVDS Receiver Timing Specifications for Cyclone IV Devices (1), (3) Symbol Modes C6 C7, I7 C8, A7 C8L, I8L C9L Unit Min Max Min Max Min Max Min Max Min Max fHSCLK (input clock frequency) ×10 10 437.5 10 370 10 320 10 320 10 250 MHz ×8 10 437.5 10 370 10 320 10 320 10 250 MHz ×7 10 437.5 10 370 10 320 10 320 10 250 MHz ×4 10 437.5 10 370 10 320 10 320 10 250 MHz ×2 10 437.5 10 370 10 320 10 320 10 250 MHz ×1 10 437.5 10 402.5 10 402.5 10 362 10 265 MHz HSIODR ×10 100 875 100 740 100 640 100 640 100 500 Mbps ×8 80 875 80 740 80 640 80 640 80 500 Mbps ×7 70 875 70 740 70 640 70 640 70 500 Mbps ×4 40 875 40 740 40 640 40 640 40 500 Mbps ×2 20 875 20 740 20 640 20 640 20 500 Mbps ×1 10 437.5 10 402.5 10 402.5 10 362 10 265 Mbps SW — — 400— 400— 400— 550— 640 ps Input jitter tolerance — — 500— 500— 550— 600— 700 ps tLOCK (2) — — 1— 1 — 1— 1— 1 ms Notes to Table 1–36: (1) Cyclone IV E—LVDS receiver is supported at all I/O Banks. Cyclone IV GX—LVDS receiver is supported at I/O Banks 3, 4, 5, 6, 7, 8, and 9. (2) tLOCK is the time required for the PLL to lock from the end-of-device configuration. (3) Cyclone IV E 1.0 V core voltage devices only support C8L, C9L, and I8L speed grades. Cyclone IV E 1.2 V core voltage devices only support C6, C7, C8, I7, and A7 speed grades. Cyclone IV GX devices only support C6, C7, C8, and I7 speed grades. |
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