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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AM50DL128CG 데이터시트(HTML) 47 Page - SPANSION |
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AM50DL128CG 데이터시트(HTML) 47 Page - SPANSION |
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46 Am50DL128CG November 7, 2002 P R E L I M I NARY FLASH AC CHARACTERISTICS OE# 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#f Controlled Write Cycles WE# Controlled Write Cycle Valid PA Valid PA tCP tCPH tWC tWC Read Cycle tSR/W CE#f Note: CE#f refers to active flash device being addressed (either CE#f1 or CE#f2). The chip enable input of the inactive flash device must be held high during this operation. Figure 20. Back-to-back Read/Write Cycle Timings WE# CE#f OE# High Z tOE High Z DQ7 DQ6–DQ0 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 Notes: 1. VA = Valid address. Illustration shows first status cycle after command sequence, last status read cycle, and array data read cycle. 2. CE#f refers to active flash device being addressed (either CE#f1 or CE#f2). The chip enable input of the inactive flash device must be held high during this operation. Figure 21. Data# Polling Timings (During Embedded Algorithms) |
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