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IS62LV256-70UI Datasheet(PDF) 5 Page - Integrated Silicon Solution, Inc |
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IS62LV256-70UI Datasheet(HTML) 5 Page - Integrated Silicon Solution, Inc |
5 / 9 page IS62LV256 ISSI® Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774 5 Rev. K 12/11/02 READ CYCLE SWITCHING CHARACTERISTICS(1) (Over Operating Range) -45 ns -70 ns Symbol Parameter Min. Max. Min. Max. Unit tRC Read Cycle Time 45 — 70 — ns tAA Address Access Time — 45 — 70 ns tOHA Output Hold Time 2 — 2 — ns tACE CE Access Time — 45 — 70 ns tDOE OE Access Time — 25 — 35 ns tLZOE(2) OE to Low-Z Output 0 — 0 — ns tHZOE(2) OE to High-Z Output 0 20 0 25 ns tLZCE(2) CE to Low-Z Output 3 — 3 — ns tHZCE(2) CE to High-Z Output 0 20 0 25 ns tPU(3) CE to Power-Up 0 — 0 — ns tPD(3) CE to Power-Down — 30 — 50 ns Notes: 1. Test conditions assume signal transition times of 5 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V and output loading specified in Figure 1a. 2. Tested with the load in Figure 1b. Transition is measured ±500 mV from steady-state voltage. Not 100% tested. 3. Not 100% tested. AC TEST CONDITIONS Parameter Unit Input Pulse Level 0V to 3.0V Input Rise and Fall Times 5 ns Input and Output Timing 1.5V and Reference Levels Output Load See Figures 1a and 1b 1213 Ω 100 pF Including jig and scope 1378 Ω OUTPUT 3.3V 1213 Ω 5 pF Including jig and scope 1378 Ω OUTPUT 3.3V Figures 1a Figures 1b |
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