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W3EG7232S262BD4-X Datasheet(PDF) 6 Page - White Electronic Designs Corporation |
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W3EG7232S262BD4-X Datasheet(HTML) 6 Page - White Electronic Designs Corporation |
6 / 14 page 6 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs W3EG7232S-AD4 -BD4 August 2005 Rev. 4 PRELIMINARY IDD1 : OPERATING CURRENT : ONE BANK 1. Typical Case : VCC=2.5V, T=25°C 2. Worst Case : VCC=2.7V, T=10°C 3. Only one bank is accessed with tRC (min), Burst Mode, Address and Control inputs on NOP edge are changing once per clock cycle. IOUT = 0mA 4. Timing Patterns : • DDR200 (100 MHz, CL=2) : tCK=10ns, CL2, BL=4, tRCD=2*tCK, tRAS=5*tCK Read : A0 N R0 N N P0 N A0 N - repeat the same timing with random address changing; 50% of data changing at every burst • DDR266 (133MHz, CL=2.5) : tCK=7.5ns, CL=2.5, BL=4, tRCD=3*tCK, tRC=9*tCK, tRAS=5*tCK Read : A0 N N R0 N P0 N N N A0 N - repeat the same timing with random address changing; 50% of data changing at every burst • DDR266 (133MHz, CL=2) : tCK=7.5ns, CL=2, BL=4, tRCD=3*tCK, tRC=9*tCK, tRAS=5*tCK Read : A0 N N R0 N P0 N N N A0 N - repeat the same timing with random address changing; 50% of data changing at every burst • DDR333 (166MHz, CL=2.5) : tCK=6ns, BL=4, tRCD=10*tCK, tRAS=7*tCK Read : A0 N N R0 N P0 N N N A0 N - repeat the same timing with random address changing; 50% of data changing at every burst IDD7A : OPERATING CURRENT : FOUR BANKS 1. Typical Case : VCC=2.5V, T=25°C 2. Worst Case : VCC=2.7V, T=10°C 3. Four banks are being interleaved with tRC (min), Burst Mode, Address and Control inputs on NOP edge are not changing. Iout=0mA 4. Timing Patterns : • DDR200 (100 MHz, CL=2) : tCK=10ns, CL2, BL=4, tRRD=2*tCK, tRCD=3*tCK, Read with Autoprecharge Read : A0 N A1 R0 A2 R1 A3 R2 A0 R3 A1 R0 - repeat the same timing with random address changing; 100% of data changing at every burst • DDR266 (133MHz, CL=2.5) : tCK=7.5ns, CL=2.5, BL=4, tRRD=3*tCK, tRCD=3*tCK Read with Autoprecharge Read : A0 N A1 R0 A2 R1 A3 R2 N R3 A0 N A1 R0 - repeat the same timing with random address changing; 100% of data changing at every burst • DDR266 (133MHz, CL=2) : tCK=7.5ns, CL2=2, BL=4, tRRD=2*tCK, tRCD=2*tCK Read : A0 N A1 R0 A2 R1 A3 R2 N R3 A0 N A1 R0 - repeat the same timing with random address changing; 100% of data changing at every burst • DDR333 (166MHz, CL=2.5) : tCK=6ns, BL=4, tRRD=3*tCK, tRCD=3*tCK, Read with Autoprecharge Read : A0 N A1 R0 A2 R1 A3 R2 N R3 A0 N A1 R0 - repeat the same timing with random address changing; 100% of data changing at every burst DETAILED TEST CONDITIONS FOR DDR SDRAM IDD1 & IDD7A Legend : A = Activate, R = Read, W = Write, P = Precharge, N = NOP A (0-3) = Activate Bank 0-3 R (0-3) = Read Bank 0-3 |
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