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EP3C40 Datasheet(PDF) 12 Page - Altera Corporation |
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EP3C40 Datasheet(HTML) 12 Page - Altera Corporation |
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12 / 34 page ![]() 1–12 Chapter 1: Cyclone III Device Data Sheet Electrical Characteristics Cyclone III Device Handbook, Volume 2 © January 2010 Altera Corporation f For more illustrations of receiver input and transmitter output waveforms, and for other differential I/O standards, refer to the High-Speed Differential Interfaces in Cyclone III Devices chapter. Table 1–14. Cyclone III Devices Single-Ended SSTL and HSTL I/O Reference Voltage Specifications (Note 1) I/O Standard V CC IO (V) V REF (V) V TT (V) (Note 2) Min Typ Max Min Typ Max Min Typ Max SSTL-2 Class I, II 2.375 2.5 2.625 1.19 1.25 1.31 V REF – 0.04 V REF V REF + 0.04 SSTL-18 Class I, II 1.7 1.8 1.9 0.833 0.9 0.969 V REF – 0.04 V REF V REF + 0.04 HSTL-18 Class I, II 1.71 1.8 1.89 0.85 0.9 0.95 0.85 0.9 0.95 HSTL-15 Class I, II 1.425 1.5 1.575 0.71 0.75 0.79 0.71 0.75 0.79 HSTL-12 Class I, II 1.14 1.2 1.26 0.48 * V CC IO (3) 0.5 * V CCIO (3) 0.52 * V CC IO (3) — 0.5 * V CC IO — 0.47 * V CC IO (4) 0.5 * V CCIO (4) 0.53 * V CC IO (4) Notes to Table 1–14: (1) For an explanation of terms used in Table 1–14, refer to “Glossary” on page 1–27. (2) VTT of transmitting device must track VREF of the receiving device. (3) Value shown refers to DC input reference voltage, VREF(DC). (4) Value shown refers to AC input reference voltage, VREF(AC). Table 1–15. Cyclone III Devices Single-Ended SSTL and HSTL I/O Standards Signal Specifications I/O Standard V IL(DC) (V) V IH(DC ) (V) V IL(AC ) (V) V IH (A C) (V) V OL (V) V OH (V) I OL (mA) I OH (mA) Min Max Min Max Min Max Min Max Max Min SSTL-2 Class I — V REF – 0.18 V REF + 0.18 —— V REF – 0.35 V REF + 0.35 — V TT – 0.57 V TT + 0.57 8.1 –8.1 SSTL-2 Class II — V REF – 0.18 V REF + 0.18 —— V REF – 0.35 V REF + 0.35 — V TT – 0.76 V TT + 0.76 16.4 –16.4 SSTL-18 Class I — V REF – 0.125 V REF + 0.125 —— V REF – 0.25 V REF + 0.25 — V TT – 0.475 V TT + 0.475 6.7 –6.7 SSTL-18 Class II — V REF – 0.125 V REF + 0.125 —— V REF – 0.25 V REF + 0.25 —0.28 V CCIO – 0.28 13.4 –13.4 HSTL-18 Class I — V REF – 0.1 V REF + 0.1 —— V REF – 0.2 V REF + 0.2 —0.4 V CC IO – 0.4 8 –8 HSTL-18 Class II — V REF – 0.1 V REF + 0.1 —— V REF – 0.2 V REF + 0.2 —0.4 V CCIO – 0.4 16 –16 HSTL-15 Class I — V REF – 0.1 V REF + 0.1 —— V REF – 0.2 V REF + 0.2 —0.4 V CCIO – 0.4 8–8 HSTL-15 Class II — V REF – 0.1 V REF + 0.1 —— V REF – 0.2 V REF + 0.2 —0.4 V CCIO – 0.4 16 –16 HSTL-12 Class I –0.15 V REF – 0.08 V REF + 0.08 V CC IO + 0.15 –0.24 V REF – 0.15 V REF + 0.15 V CCIO + 0.24 0.25 × V CC IO 0.75 × V CCIO 8–8 HSTL-12 Class II –0.15 V REF – 0.08 V REF + 0.08 V CC IO + 0.15 –0.24 V REF – 0.15 V REF + 0.15 V CCIO + 0.24 0.25 × V CC IO 0.75 × V CCIO 14 –14 |
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