HYS72T64020HR modules equivalent, 240-pin registered ddr2 sdram modules.
* Programmable CAS Latencies (3, 4, 5 & 6), Burst Length (4 & 8) and Burst Type
* Auto Refresh (CBR) and Self Refresh
* All inputs and outputs SSTL_18 compati.
* One rank 32M x 72, 64M x 72 and two ranks 64M × 72 module organization and 32M × 8, 64M × 4 chip organization
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devices and a PLL for the clock distribution. This reduces capacitive loading to the system bus, but adds one cycle to the SDRAM timing. Decoupling capacitors are mounted on the PCB board. The DIMMs feature serial presence detect based on a serial E2.
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