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MT41J256M4 Datasheet(PDF) 66 Page - Micon Design Technology Corporation |
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MT41J256M4 Datasheet(HTML) 66 Page - Micon Design Technology Corporation |
66 / 181 page PDF: 09005aef826aa906/Source: 09005aef82a357c3 Micron Technology, Inc., reserves the right to change products or specifications without notice. 1Gb_DDR3_3.fm - Rev. D 8/1/08 EN 66 ©2006 Micron Technology, Inc. All rights reserved. 1Gb: x4, x8, x16 DDR3 SDRAM Speed Bin Tables Notes: 1. tREFI depends on TOPER. 2. The CL and CWL settings result in tCK requirements. When making a selection of tCK, both CL and CWL requirement settings need to be fulfilled. 3. Reserved settings are not allowed. Table 52: DDR3-1600 Speed Bins DDR3-1600 Speed Bin -125F -125E -125 Units Notes CL-tRCD-tRP 9-9-9 10-10-10 11-11-11 Parameter Symbol Min Max Min Max Min Max ACTIVATE to internal READ or WRITE delay time tRCD 11.25 – 12.5 – 13.75 – ns PRECHARGE command period tRP 11.25 – 12.5 – 13.75 – ns ACTIVATE-to-ACTIVATE or REFRESH command period tRC 46.25 – 47.5 – 48.75 – ns ACTIVATE-to-PRECHARGE command period tRAS 35 9 × tREFI 35 9 × tREFI 35 9 × tREFI ns 1 CL = 5 CWL = 5 tCK (AVG) 2.5 3.3 2.5 3.3 Reserved ns 2, 3 CWL = 6, 7, 8 tCK (AVG) Reserved Reserved Reserved ns 3 CL = 6 CWL = 5 tCK (AVG) 2.5 3.3 2.5 3.3 2.5 3.3 ns 2 CWL = 6 tCK (AVG) Reserved Reserved Reserved ns 2, 3 CWL = 7, 8 tCK (AVG) Reserved Reserved Reserved ns 3 CL = 7 CWL = 5 tCK (AVG) Reserved Reserved Reserved ns 3 CWL = 6 tCK (AVG) 1.875 <2.5 1.875 <2.5 Reserved ns 2, 3 CWL = 7 tCK (AVG) Reserved Reserved Reserved ns 2, 3 CWL = 8 tCK (AVG) Reserved Reserved Reserved ns 3 CL = 8 CWL = 5 tCK (AVG) Reserved Reserved Reserved ns 3 CWL = 6 tCK (AVG) 1.875 <2.5 1.875 <2.5 1.875 <2.5 ns 2 CWL = 7 tCK (AVG) 1.5 <1.875 Reserved Reserved ns 2, 3 CWL = 8 tCK (AVG) Reserved Reserved Reserved ns 2, 3 CL = 9 CWL = 5, 6 tCK (AVG) Reserved Reserved Reserved ns 3 CWL = 7 tCK (AVG) 1.5 <1.875 1.5 <1.875 Reserved ns 2, 3 CWL = 8 tCK (AVG) 1.25 <1.5 Reserved Reserved ns 2, 3 CL = 10 CWL = 5, 6 tCK (AVG) Reserved Reserved Reserved ns 3 CWL = 7 tCK (AVG) 1.5 <1.875 1.5 <1.875 1.5 <1.875 ns 2 CWL = 8 tCK (AVG) 1.25 <1.5 1.25 <1.5 Reserved ns 2, 3 CL = 11 CWL = 5, 6, 7 tCK (AVG) Reserved Reserved Reserved ns 3 CWL = 8 tCK (AVG) 1.25<1.5 1.25<1.5 1.25<1.5 ns 2 Supported CL settings 5, 6, 7, 8, 9, 10, 11 5, 6, 7, 8, 9, 10, 11 6, 8, 10, 11 CK Supported CWL settings 5, 6, 7, 8 5, 6, 7, 8 5, 6, 7, 8 CK |
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