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AM3892 Datasheet(PDF) 172 Page - Texas Instruments |
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AM3892 Datasheet(HTML) 172 Page - Texas Instruments |
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172 / 299 page ![]() = Rcp Rcp Cac DDR_1V5 0.1 µF A2 A3 A4 A2 A3 A4 AT AT A3 A3 = Rtt A2 A3 A4 AT Vtt A3 AM3894 AM3892 SPRS681A – OCTOBER 2010 – REVISED MARCH 2011 www.ti.com Figure 8-21. CK Routing for Four Mirrored DDR3 Devices Figure 8-22. ADDR_CTRL Routing for Four Mirrored DDR3 Devices 8.3.2.14.2 Two DDR3 Devices Two DDR3 devices are supported on the DDR EMIF consisting of two x8 DDR3 devices arranged as one bank (CS), 16 bits wide, or two x16 DDR3 devices arranged as one bank (CS), 32 bits wide. These two devices may be mounted on a single side of the PCB, or may be mirrored in a pair to save board space at a cost of increased routing complexity and parts on the backside of the PCB. 8.3.2.14.2.1 CK and ADDR_CTRL Topologies, Two DDR3 Devices Figure 8-23 shows the topology of the CK net classes and Figure 8-24 shows the topology for the corresponding ADDR_CTRL net classes. 172 Peripheral Information and Timings Copyright © 2010–2011, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): AM3894 AM3892 |
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