DSP, Micros & Memory


High-speed SDRAMs

1 May 2013 DSP, Micros & Memory

Alliance Memory extended its 128 Mb and 256 Mb lines of high-speed CMOS synchronous DRAMs (SDRAM) with new devices in a 54-ball 8 x 8 x 1,2 mm TFBGA package. These 8M x 16 and 16M x 16 devices feature fast access time from clock down to 4,5 ns at a 5 ns clock and clock rates of 143 MHz. They operate from a single 3,3 V power supply and provide programmable read or write burst lengths of 1, 2, 4, 8 or full page, with a burst termination option. An auto pre-charge function provides a self-timed row pre-charge initiated at the end of the burst sequence. Easy-to-use refresh functions include auto- or self-refresh while a programmable mode register allows the system to choose the most suitable modes to maximise performance.



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