DSP, Micros & Memory


SDRAMs with wide temperature ranges

18 April 2012 DSP, Micros & Memory

Alliance Memory introduced three new high-speed CMOS synchronous DRAMs (SDRAM) rated for the industrial temperature range of –40°C to +85°C. They offer densities of 64 Mb (AS4C4M16S-6TIN), 128 Mb (AS4C8M16S-6TIN) and 256 Mb (AS4C16M16S-6TIN), a fast access time from clock down to 4,5 ns at a 5 ns clock cycle, and clock rates of 166 MHz. Internally configured as four banks of 1M, 2M or 4M words x 16 bits with a synchronous interface, the devices operate from a single +3,3 V power supply and are lead- and halogen-free. They 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.



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