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HYS72V64220GU-7-D Datasheet(PDF) 7 Page - Infineon Technologies AG |
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HYS72V64220GU-7-D Datasheet(HTML) 7 Page - Infineon Technologies AG |
7 / 15 page HYS 64/72V64220GU SDRAM-Modules INFINEON Technologies 7 9.01 AC Characteristics 1), 2) T A = 0 to 70 °C; VSS =0V; VDD =3.3 V ± 0.3 V, tT =1 ns Parameter Symbol Limit Values Unit Note -7 PC133-222 -7.5 PC133-333 -8 PC100-222 min. max min. max. min. max. Clock Clock Cycle Time CAS Latency = 3 CAS Latency = 2 t CK 7.5 7.5 – – 7.5 10 – – 10 10 – – ns ns – System Frequency CAS Latency = 3 CAS Latency = 2 f CK – – 133 133 – – 133 100 – – 100 100 MHz MHz – Clock Access Time CAS Latency = 3 CAS Latency = 2 t AC – – 5.4 5.4 – – 5.4 6 – – 6 6 ns ns 3), 4) Clock High Pulse Width t CH 2.5 – 2.5 – 3 – ns 4) Clock Low Pulse Width t CL 2.5 – 2.5 – 3 – ns 4) Setup and Hold Times Input Setup Time t CS 1.5 – 1.5 – 2 – ns 5) Input Hold Time t CH 0.8 – 0.8 – 1 – ns 5) Power Down Mode Entry Time t SB – 1 – 1 – 1CLK 6) Power Down Mode Exit Setup Time t PDE 1 – 1 – 1 – CLK 7) Mode Register Setup Time t RSC 2 – 2 – 2 – CLK Transition Time (rise and fall) t T 1 – 1 – 1 – ns – Common Parameters RAS to CAS Delay t RCD 15 – 20 – 20 – ns – Precharge Time t RP 15 – 20 – 20 – ns – Active Command Period t RAS 42 – 45 100k 50 100k ns – Cycle Time t RC 60 – 67.5 – 70 – ns – Bank to Bank Delay Time t RRD 14 – 15 – 16 – ns – CAS to CAS Delay Time (same bank) t CCD 1 – 1 – 1 – CLK – |
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