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EDJ8232E5MB Datasheet(PDF) 39 Page - Elpida Memory |
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EDJ8232E5MB Datasheet(HTML) 39 Page - Elpida Memory |
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39 / 142 page ![]() EDJ8232E5MB Data Sheet E1813E40 (Ver. 4.0) 39 IDD1 Measurement-Loop Pattern Notes: 1. DM must be driven low all the time. DQS, /DQS are used according to read commands, otherwise FLOATING. 2. Burst sequence driven on each DQ signal by read command. Outside burst operation, DQ signals are FLOATING. 3. BA: BA0 to BA2. CK, /CK CKE Sub -Loop Cycle number Com- mand /CS /RAS /CAS /WE ODT BA* 3 A11 -A14 A10 A7 -A9 A3 -A6 A0 -A2 Data* 2 0 ACT 0 0 1 1 0 0 0 0 0 0 0 1, 2 D, D 1 0 0 0 0 0 0 0 0 0 0 3, 4 /D, /D 1 1 1 1 0 0 0 0 0 0 0 … Repeat pattern 1...4 until nRCD 1, truncate if necessary nRCD READ 0 1 0 1 0 0 0 0 0 0 0 00000000 … Repeat pattern 1...4 until nRAS 1, truncate if necessary nRAS PRE 0 0 1 0 0 0 0 0 0 0 0 … Repeat pattern 1...4 until nRC 1, truncate if necessary 1 nRC + 0 ACT 0 0 1 1 0 0 0 0 0 F 0 1 nRC + 1, 2 D, D 1 0 0 0 0 0 0 0 0 F 0 1 nRC + 3, 4 /D, /D 1 1 1 1 0 0 0 0 0 F 0 ... Repeat pattern nRC + 1,..., 4 until nRC + nRCD 1, truncate if necessary 1 nRC + nRCD READ 0 1 0 1 0 0 0 0 0 F 0 00110011 ... Repeat pattern nRC + 1,..., 4 until nRC +nRAS 1, truncate if necessary 1 nRC + nRAS PRE 0 0 1 0 0 0 0 0 0 F 0 0 … Repeat pattern nRC + 1,..., 4 until 2 * nRC 1, truncate if necessary 1 2 nRC Repeat Sub-Loop 0, use BA= 1 instead 2 4 nRC Repeat Sub-Loop 0, use BA= 2 instead 3 6 nRC Repeat Sub-Loop 0, use BA= 3 instead 4 8 nRC Repeat Sub-Loop 0, use BA= 4 instead 5 10 nRC Repeat Sub-Loop 0, use BA= 5 instead 6 12 nRC Repeat Sub-Loop 0, use BA= 6 instead Toggling Static H 7 14 nRC Repeat Sub-Loop 0, use BA= 7 instead |
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