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AT49F1024 Datasheet(PDF) 6 Page - ATMEL Corporation |
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AT49F1024 Datasheet(HTML) 6 Page - ATMEL Corporation |
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AT49F1024/1025 6 AC Read Waveforms(1)(2)(3)(4) Notes: 1. CE may be delayed up to t ACC - tCE after the address transition without impact on tACC. 2. OE may be delayed up to t CE - tOE after the falling edge of CE without impact on tCE or by tACC - tOE after an address change without impact on t ACC. 3. t DF is specified from OE or CE whichever occurs first (CL = 5 pF). 4. This parameter is characterized and is not 100% tested. Input Test Waveforms and Measurement Level t R, tF < 5 ns Output Test Load Note: 1. This parameter is characterized and is not 100% tested. AC Read Characteristics Symbol Parameter AT49F1024-45 AT49F1025-45 AT49F1024-55 AT49F1025-55 AT49F1024-70 AT49F1025-70 AT49F1024-90 AT49F1025-90 Units Min Max Min Max Min Max Min Max tACC Address to Output Delay 45 55 70 90 ns t CE (1) CE to Output Delay 45 55 70 90 ns t OE (2) OE to Output Delay 0 30 30 35 0 40 ns tDF (3)(4) CE or OE to Output Float 0 25 0 25 0 25 0 25 ns tOH Output Hold from OE, CE or Address, whichever occurred first 000 0 ns OUTPUT PIN 5.0V 45/55/70 ns 90/120 ns 30 pF 1.8K 1.3K OUTPUT PIN 5.0V 100 pF 1.8K 1.3K Pin Capacitance f = 1 MHz, T = 25°C(1) Typ Max Units Conditions C IN 46 pF V IN = 0V C OUT 812 pF V OUT = 0V |
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