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IDT7140SA20L48 Datasheet(PDF) 11 Page - Integrated Device Technology |
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IDT7140SA20L48 Datasheet(HTML) 11 Page - Integrated Device Technology |
11 / 14 page 6.01 11 IDT7130SA/LA AND IDT7140SA/LA HIGH-SPEED 1K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS MILITARY AND COMMERCIAL TEMPERATURE RANGES AC ELECTRICAL CHARACTERISTICS OVER THE OPERATING TEMPERATURE AND SUPPLY VOLTAGE RANGE(2) 8M824S25 8M824S308M824S35 7130X20 (1) 7130X25 (3) 7130X35 7130X55 7130X100 7140X25(3) 7140X35 7140X55 7140X100 Symbol Parameter Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit Interrupt Timing tAS Address Set-up Time 0 — 0 — 0 — 0 — 0 — ns tWR Write Recovery Time 0 — 0 — 0 — 0 — 0 — ns tINS Interrupt Set Time — 20 — 25 — 25 — 45 — 60 ns tINR Interrupt Reset Time — 20 — 25 — 25 — 45 — 60 ns 2689 tbl 12 NOTES: 1. 0 °C to +70°C temperature range only, PLCC and TQFP packages. 2. “X” in part numbers indicates power rating (SA or LA). 3. Not available in DIP packages . INT INT INT INT INT SET: TIMING WAVEFORM OF INTERRUPT MODE INT INT INT INT INT CLEAR: NOTES:. 1. All timing is the same for left and right ports. Port “A” may be either left or right port. Port “B” is the opposite from port “A”. 2. See Interrupt Truth Table. 3. Timing depends on which enable signal ( CE or R/W) is asserted last. 4. Timing depends on which enable signal ( CE or R/W) is de-asserted first. tINS ADDR'A' INT'B' INTERRUPT ADDRESS tWC tAS R/ W'A' tWR 2689 drw 16 (3) (3) (2) (4) tRC INTERRUPT CLEAR ADDRESS ADDR'B' OE'B' tINR INT'B' 2689 drw 17 tAS (3) (3) |
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