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IDT70V05S Datasheet(PDF) 12 Page - Integrated Device Technology |
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IDT70V05S Datasheet(HTML) 12 Page - Integrated Device Technology |
12 / 17 page ![]() 6.35 12 IDT70V05S/L HIGH-SPEED 3.3V 8K x 8 DUAL-PORT STATIC RAM COMMERCIAL TEMPERATURE RANGE AC ELECTRICAL CHARACTERISTICS OVER THE OPERATING TEMPERATURE AND SUPPLY VOLTAGE RANGE(1) IDT70V05X25 IDT70V05X35 IDT70V05X55 Symbol Parameter Min. Max. Min. Max. Min Max. Unit INTERRUPT TIMING tAS Address Set-up Time 0 — 0 — 0 — ns tWR Write Recovery Time 0 — 0 — 0 — ns tINS Interrupt Set Time — 25 — 30 — 40 ns tINR Interrupt Reset Time — 30 — 35 — 45 ns NOTE: 2941 tbl 14 1. "X" in part numbers indicates power rating (S or L). WAVEFORM OF INTERRUPT TIMING(1) TRUTH TABLE III — INTERRUPT FLAG(1) Left Port Right Port R/ W W W W WL CE CE CE CE CEL OE OE OE OE OEL A0L-A12L INT INT INT INT INTL R/ W W W W WR CE CE CE CE CER OE OE OE OE OER A0R-A12R INT INT INT INT INTR Function L L X 1FFF XXXXX L (2) Set Right INTR Flag X X X X X X L L 1FFF H (3) Reset Right INTR Flag XX X X L (3) L L X 1FFE X Set Left INTL Flag X L L 1FFE H (2) XXXXX Reset Left INTL Flag NOTES: 2941 tbl 15 1. Assumes BUSYL = BUSYR = VIH. 2. If BUSYL = VIL, then no change. 3. If BUSYR = VIL, then no change. NOTES: 1. All timing is the same for left and right ports. Port “A” may be either the left or right port. Port “B” is the port opposite from “A”. 2. See Interrupt truth table. 3. Timing depends on which enable signal is asserted last. 4. Timing depends on which enable signal is de-asserted first. 2941 drw 18 ADDR"B" INTERRUPT CLEAR ADDRESS CE"B" OE"B" tAS tRC (3) tINR (3) INT"B" (2) 2941 drw 17 ADDR"A" INTERRUPT SET ADDRESS CE"A" R/ W"A" tAS tWC tWR (3) (4) tINS (3) INT"B" (2) |
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