AK532512W

MICROCIRCUIT CORPORATION DESCRIPTION The Accutek AK532512W high density memory module is a CMOS dynamic RAM organized in 512K x 32 bit words. The module consists of sixteen standard 256K 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 AK532512W is identical to sixteen 256K x 4 Drams. There are four CAS lines and four RAS lines. On each bank of 256K x 32, independent byte control is accomplished by the four CAS lines. Each seperate CAS line controls four 256K 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. + 1 ACCUTEK AK532512W 524,288 Word by 32 Bit CMOS Dynamic Random Access Memory + 72 · Power 4.00 Watt Max Active (60nS) 3.56 Watt Max Active (70 nS) 3.124 Watt Max Active (80 nS) 88 mW Max Standby · Available in leadless SIM or leaded Zip versions · Downward compatible with AK532256 · Upward compatible with AK5321024, AK5322048, AK5324096 and AK5328192 FEATURES · 524,288 x 32 bit organization · 72 pin Single In-Line Module · Multiple CAS and RAS lines allow x16 or x32 bit widths · CAS-before-RAS Refresh, RAS-only Refresh o...