A4S12D40FTP sdram equivalent, 512mb ddr sdram.
-Vdd=Vddq=2.5V+0.2V(G6 Grade) -Vdd=Vddq=2.6V+0.1V(G5 Grade) - Double data rate architecture;
two data transfers per clock cycle - Bidirectional, data strobe (DQS) is tran.
A4S12D40FTP is a 4-bank x 8,388,608-word x 16-bit, A4S12D30FTP is a 4-bank x 16777216word x 8-bit, double data rate synchronous DRAM, with SSTL_2 interface. All control and address signals are referenced to the rising edge of CLK. Input data is regis.
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