Rev. 0.1 / May 2004

28

HY5DU12422B(L)TP

HY5DU12822B(L)TP

HY5DU121622B(L)TP

DETAILED TEST CONDITIONS FOR DDR SDRAM IDD1 & IDD7

IDD1 : Operating current: One bank operation

3. Only one bank is accessed with tRC(min), Burst Mode, Address and Control inputs on NOP edge are

changing once per clock cycle. lout = 0mA

4. Timing patterns

- DDR266B(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

- DDR266A (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, CL=2, BL=4, tRCD = 3*tCK, tRC = 10*tCK, tRAS = 7*tCK

Read : A0 N N R0 N N N P0 N N A0 N - repeat the same timing with random address changing

50% of data changing at every burst

Legend : A=Activate, R=Read, W=Write, P=Precharge, N=NOP

IDD7 : Operating current: Four bank operation

3. Four banks are being interleaved with tRC(min), Burst Mode, Address and Control inputs on NOP edge are not

changing. lout = 0mA

4. Timing patterns

- DDR266B(133Mhz, CL=2.5) : tCK = 7.5ns, CL=2.5, BL=4, tRRD = 2*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

50% of data changing at every burst

- DDR266A (133Mhz, CL=2) : tCK = 7.5ns, CL2=2, BL=4, tRRD = 2*tCK, tRCD = 3*tCK

Read : A0 N A1 R0 A2 R1 A3 R2 N R3 A0 N A1 R0 - repeat the same timing with random address changing

50% of data changing at every burst

- DDR333(166Mhz, CL=2.5) : tCK = 6ns, CL=2.5, BL=4, tRRD = 2*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

50% of data changing at every burst

Legend : A=Activate, R=Read, W=Write, P=Precharge, N=NOP