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AS4LC256K16EO 데이터시트(PDF) 22 Page - Alliance Semiconductor Corporation |
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AS4LC256K16EO 데이터시트(HTML) 22 Page - Alliance Semiconductor Corporation |
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22 / 25 page ![]() ® AS4LC256K16EO 4/11/01; V.1.1 Alliance Semiconductor P. 22 of 25 CAS-before-RAS self refresh cycle Typical DC and AC characteristics tRP tRASS tRPC tCP tCHS tCEZ RAS UCAS, DQ LCAS tRPS tCSR tRPC Supply voltage (V) 2.7 3.6 3.9 3.3 3.0 0.8 0.9 1.1 1.2 1.0 1.3 1.4 1.5 Normalized access time tRAC Ambient temperature (°C) –55 80 125 35 –10 0.8 0.9 1.1 1.2 1.0 1.3 1.4 1.5 Normalized access time tRAC Load capacitance (pF) 50 200 250 150 100 30 40 60 70 50 80 90 100 Typical access time tRAC vs. ambient temperature Ta vs. load capacitance CL vs. supply voltage VCC Ta = 25°C Supply voltage (V) 2.7 3.6 3.9 3.3 3.0 0.0 10 30 40 20 50 60 70 Typical supply current ICC Ambient temperature (°C) –55 80 125 35 –10 0.0 10 30 40 20 50 60 70 Typical supply current ICC Cycle rate (MHz) 28 10 6 4 0.0 5 15 20 10 25 30 35 Typical power-on current IPO vs. ambient temperature Ta vs. cycle rate 1/tRC vs. supply voltage VCC |
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