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MC-458CB647EFA-A75 Datasheet(PDF) 8 Page - NEC |
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MC-458CB647EFA-A75 Datasheet(HTML) 8 Page - NEC |
8 / 16 page Data Sheet M14279EJ3V0DS00 8 MC-458CB647 Synchronous Characteristics Parameter Symbol -A 75 Unit Note MIN. MAX. Clock cycle time /CAS latency = 3 tCK3 7.5 (133 MHz) ns /CAS latency = 2 tCK2 10 (100 MHz) ns Access time from CLK /CAS latency = 3 tAC3 5.4 ns 1 /CAS latency = 2 tAC2 6.0 ns 1 CLK high level width tCH 2.5 ns CLK low level width tCL 2.5 ns Data-out hold time tOH 3.0 ns 1 Data-out low-impedance time tLZ 0ns Data-out high-impedance time /CAS latency = 3 tHZ3 3.0 5.4 ns /CAS latency = 2 tHZ2 3.0 6.0 ns Data-in setup time tDS 1.5 ns Data-in hold time tDH 0.8 ns Address setup time tAS 1.5 ns Address hold time tAH 0.8 ns CKE setup time tCKS 1.5 ns CKE hold time tCKH 0.8 ns CKE setup time (Power down exit) tCKSP 1.5 ns Command (/CS0, /CS2, /RAS, /CAS, /WE, tCMS 1.5 ns DQMB0 - DQMB7) setup time Command (/CS0, /CS2, /RAS, /CAS, /WE, tCMH 0.8 ns DQMB0 - DQMB7) hold time Note 1. Output load Output Z = 50 Ω 50 pF Remark These specifications are applied to the monolithic device. 5 |
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