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UPD444016LG5-A8-7JF Datasheet(PDF) 7 Page - NEC |
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UPD444016LG5-A8-7JF Datasheet(HTML) 7 Page - NEC |
7 / 16 page 7 µµµµPD444016L Data Sheet M14431EJ3V0DS Read Cycle Parameter Symbol µPD444016L-A8 µPD444016L-A10 µPD444016L-A12 Unit Notes MIN. MAX. MIN. MAX. MIN. MAX. Read cycle time tRC 810 12 ns Address access time tAA 810 12 ns 1 /CS access time tACS 810 12 ns /OE access time tOE 456 ns /LB, /UB access time tABD 456 ns Output hold from address change tOH 33 3 ns /CS to output in low impedance tCLZ 33 3 ns 2, 3 /OE to output in low impedance tOLZ 00 0 ns /LB, /UB to output in low impedance tBLZ 00 0 ns /CS to output in high impedance tCHZ 456 ns /OE to output hold in high impedance tOHZ 456 ns /LB, /UB to output hold in high impedance tBHZ 456 ns Notes 1. See the output load shown in Figure 1. 2. Transition is measured at ± 200 mV from steady-state voltage with the output load shown in Figure 2. 3. These parameters are periodically sampled and not 100% tested. Remark These AC characteristics are in common regardless of package types. Read Cycle Timing Chart 1 (Address Access) tOH tRC tAA Address (Input) I/O (Output) Previous data out Data out Remarks 1. In read cycle, /WE should be fixed to high level. 2. /CS = /OE = /LB (or /UB) = VIL |
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