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D640D90VF 数据表(PDF) 44 Page - Advanced Micro Devices |
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D640D90VF 数据表(HTML) 44 Page - Advanced Micro Devices |
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44 / 54 page ![]() 42 Am29DL640D December 13, 2005 AC CHARACTERISTICS OE# CE# WE# Addresses tOH Data Valid In Valid In Valid PA Valid RA tWC tWPH tAH tWP tDS tDH tRC tCE Valid Out tOE tACC tOEH tGHWL tDF Valid In CE# Controlled Write Cycles WE# Controlled Write Cycle Valid PA Valid PA tCP tCPH tWC tWC Read Cycle tSR/W Figure 21. Back-to-back Read/Write Cycle Timings WE# CE# OE# High Z tOE High Z DQ7 DQ0–DQ6 RY/BY# tBUSY Complement True Addresses VA tOEH tCE tCH tOH tDF VA VA Status Data Complement Status Data True Valid Data Valid Data tACC tRC Note: VA = Valid address. Illustration shows first status cycle after command sequence, last status read cycle, and array data read cycle. Figure 22. Data# Polling Timings (During Embedded Algorithms) |
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