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IDT7134SA55L48B Datasheet(PDF) 5 Page - Integrated Device Technology |
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IDT7134SA55L48B Datasheet(HTML) 5 Page - Integrated Device Technology |
5 / 9 page 6.04 5 IDT7134SA/LA HIGH-SPEED 4K x 8 DUAL-PORT STATIC RAM MILITARY AND COMMERCIAL TEMPERATURE RANGES AC ELECTRICAL CHARACTERISTICS OVER THE OPERATING TEMPERATURE AND SUPPLY VOLTAGE(4) (CONT'D) 7134X45 7134X55 7134X70 Symbol Parameter Min. Max. Min. Max. Min. Max. Unit READ CYCLE tRC Read Cycle Time 45 — 55 — 70 — ns tAA Address Access Time — 45 — 55 — 70 ns tACE Chip Enable Access Time — 45 — 55 — 70 ns tAOE Output Enable Access Time — 25 — 30 — 40 ns tOH Output Hold from Address Change 0 — 0 — 0 — ns tLZ Output Low-Z Time (1, 2) 5— 5 — 5— ns tHZ Output High-Z Time (1, 2) —20— 25 —30 ns tPU Chip Enable to Power Up Time (2) 0— 0 — 0— ns tPD Chip Disable to Power Down Time (2) —45— 50 —50 ns NOTES: 2720 tbl 09 1. Transition is measured ±500mV from Low or High-impedance voltage with the Output Test Load (Figure 2). 2. This parameter is guaranteed by device characterization, but is not production tested. 3. (Commercial only) 0 °C to +70°C temperature range only. 4. “X” in part number indicates power rating (SA or LA). TIMING WAVEFORM OF READ CYCLE NO. 1, EITHER SIDE(1, 2, 3) AC ELECTRICAL CHARACTERISTICS OVER THE OPERATING TEMPERATURE AND SUPPLY VOLTAGE(4) 7134X20 (3) 7134X25 7134X35 Symbol Parameter Min. Max. Min. Max. Min. Max. Unit READ CYCLE tRC Read Cycle Time 20 — 25 — 35 — ns tAA Address Access Time — 20 — 25 — 35 ns tACE Chip Enable Access Time — 20 — 25 — 35 ns tAOE Output Enable Access Time — 15 — 15 — 20 ns tOH Output Hold from Address Change 0 — 0 — 0 — ns tLZ Output Low-Z Time (1, 2) 0 — 0— 0— ns tHZ Output High-Z Time (1, 2) —15 — 15 — 20 ns tPU Chip Enable to Power Up Time (2) 0 — 0— 0— ns tPD Chip Disable to Power Down Time (2) —20 — 25 — 35 ns NOTES: 1. Timing depends on which signal is asserted last, OE or CE. 2. Timing depends on which signal is de-asserted first, OE or CE. 3. R/ W = VIH. ADDRESS DATAOUT PREVIOUS DATA VALID DATA VALID tOH tOH tAA tRC 2720 drw 08 |
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