AK5322048

MICROCIRCUIT CORPORATION DESCRIPTION The Accutek AK53220482W high density memory module is a CMOS dynamic RAM organized in 2048 x 32 bit words. The module consists of sixteen standard 1 Meg x 4 DRAMs in plastic SOJ packages. The assembly has eight drams mounted on each side of a printed circuit board in a 72 pad leadless SIM configuration. This configuration allows socket-mounting of large quantities of memory in applications where high density and ease of inserting additional memory are important. The operation of the AK5322048 is identical to sixteen 1Meg x 4 Drams. There are four CAS lines and four RAS lines. On each bank of 1Meg x 32, independent byte control is accomplished by the four CAS lines, where each seperate CAS line controls two 1Meg x 4 Drams. Two banks of 32 bits are controlled by the two pairs of RAS lines. A sixteen bit data path can be produced by connecting DQ1 to DQ17, DQ2 to DQ18, and alternately strobing RAS0 with RAS1 and RAS2 with RAS3. ACCUTEK AK5322048W 2,097,152 Word by 32 Bit CMOS Dynamic Random Access Memory + + 1 72 · Power 5.32 Watt Max Active (60nS) 4.44 Watt Max Active (70 nS) 3.79 Watt Max Active (80 nS) 88 mW Max Standby · Available in leadless SIM or leaded Zip versions · Downward compatible with AK5321024, AK532512 and AK532256 · Upward compatible with AK5324096 and AK5328192 FEATURES · 2,097,152 x 32 bit organization · 72 pad Single In-Line Module · Multiple CAS and RAS lines allow x16 or x32 bit widths · CAS-before-RAS, RAS-only or...