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AT49F001 Datasheet(PDF) 7 Page - ATMEL Corporation |
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AT49F001 Datasheet(HTML) 7 Page - ATMEL Corporation |
7 / 16 page AT49F001(N)(T) 7 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 Waveform and Measurement Level t R, tF < 5 ns Output Load Test Note: 1. This parameter is characterized and is not 100% tested. AC Read Characteristics Symbol Parameter AT49F001(N)(T)-50 AT49F001(N)(T)-70 AT49F001(N)(T)-90 AT49F001(N)(T)-12 Units Min Max Min Max Min Max Min Max tACC Address to Output Delay 50 70 90 120 ns t CE (1) CE to Output Delay 50 70 90 120 ns t OE (2) OE to Output Delay 0 30 0 35 0 40 0 50 ns tDF (3)(4) CE or OE to Output Float 0 25 0 25 0 25 0 30 ns t OH Output Hold from OE, CE or Address, whichever occurred first 000 0 ns ADDRESS OUTPUT HIGH Z OUTPUT OE CE tACC tOE t DF tOH tCE VALID ADDRESS VALID 55 ns 5.0V 1.8K 100 pF 30 pF 1.3K 70/90/120 ns 5.0V 1.8K OUTPUT PIN 1.3K OUTPUT PIN 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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