器件名称: AK532512
功能描述: 1,048,576 Word by 32 Bit CMOS Dynamic Random Access Memory
文件大小: 71.75KB 共2页
简 介:Accutek 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.
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AK5321024W 1,048,576 Word by 32 Bit CMOS Dynamic Random Access Memory
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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 leadless SIM ……