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EDD2508AKTA-5 Datasheet(PDF) 35 Page - Elpida Memory |
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EDD2508AKTA-5 Datasheet(HTML) 35 Page - Elpida Memory |
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35 / 48 page  EDD2508AKTA-5 Preliminary Data Sheet E0349E60 (Ver. 6.0) 35 A Read command to the consecutive Precharge command interval (same bank): To output all data To complete a burst read operation and get a burst length of data, the consecutive precharge command must be issued tRPD (= BL/ 2 cycles) after the read command is issued. out0 out1 out2 out3 CK /CK DQ DQS Command t1 t0 t2 t3 t4 t5 t6 t7 t8 tRPD = BL/2 READ NOP NOP NOP PRE/ PALL READ to PRECHARGE Command Interval (same bank): To output all data (CL = 3, BL = 4) READ to PRECHARGE Command Interval (same bank): To stop output data A burst data output can be interrupted with a precharge command. All DQ pins and DQS pins become High-Z tHZP (= CL) after the precharge command. out0 out1 CK /CK DQ DQS Command t1 t0 t2 t3 t4 t5 t6 t7 t8 High-Z High-Z tHZP CL = 3 READ NOP NOP PRE/PALL READ to PRECHARGE Command Interval (same bank): To stop output data (CL = 3, BL = 2, 4, 8) |
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