AK5321024W

MICROCIRCUIT CORPORATION DESCRIPTION The Accutek AK5321024W high density memory module is a CMOS Dynamic RAM organized in 1024K x 32 bit words. The module consists of eight standard 1 Meg x 4 DRAMs in plastic SOJ packages. The assembly has eight drams mounted on the front surface of a printed circuit board with a low profile height of only 0.875" in a 72 pin 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 AK5321024W is identical to eight 1 Meg x 4 DRAMs. There are four CAS lines and two RAS lines. Independent byte control is accomplished by four CAS lines. Each separate CAS line controls two of the 1 Meg x 4 DRAMs to form an 8 bit byte. The bank of 32 bits is controlled by the two RAS lines. A sixteen bit data path can be produced by connecting DQ0 to DQ16, DQ1 to DQ17, etc. and alternately strobing RAS0 with RAS2. ACCUTEK AK5321024W 1,048,576 Word by 32 Bit CMOS Dynamic Random Access Memory + + 1 72 FEATURES · · · · · 1,048,576 x 32 bit organization Low profile board height of 0.875 inch 72 pad Single In-Line Module Multiple CAS and RAS lines allow x16 or x32 bit widths Power 5.28 Watt Max Active (60nS) 4.40 Watt Max Active (70 nS) 44 mW Max Standby · CAS-before-RAS, RAS-only or hidden refresh · Single 5 Volt Power Supply · 1024 Refresh Cycles, 16 mSEC · · · · Available in Fast Page Mode and EDO Available in ...