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AK5916384

器件名称: AK5916384
功能描述: 4,194,304 Word x 9 Bit CMOS Dynamic Random Access Memory
文件大小: 87.79KB    共2页
生产厂商: ACCUTEK
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简　　介:Accutek Microcircuit Corporation DESCRIPTION The Accutek AK594096A high density memory module is a CMOS random access memory organized in 4 Meg x 9 bit words. The assembly consists of nine standard 4 Meg x 1 DRAMs in plastic leaded chip carriers (SOJ) mounted on the front side of a printed circuit board. The module can be configured as a leadless 30 pad SIM or a leaded 30 pin SIP. The module is only 0.800 inches high (same height as a standard 1 Meg module), making it ideally suited for applications with low height restrictions. The operation of the AK594096A is identical to nine 4 Meg x 1 DRAMs. For the lower eight bits data input is tied to the data output and brought out separately for each device, with common RAS, CAS control. This common I/O feature dictates the use of early-write cycles to prevent contention of D and Q. Since the Write-Enable (WE) signal must always go low before CAS in a write cycle, Read-Write and Read-Modify-Write operation is not possible. For the ninth bit, the data input (D9) and the data output (Q9) pins are brought out separately and controlled by a separate PCAS for that bit. Bit nine is generally used for parity. AK594096AS / AK594096AG 4,194,304 Word x 9 Bit CMOS Dynamic Random Access Memory Front View 30-Pin SIM 1 30 30-Pin SIP 1 FEATURES 4,194,304 x 9 bit organization Optional 30 Pad leadless SIM (Single In-Line Module) or 30 Pin leaded SIP (Single In-Line Package) JEDEC standard pinout Common CAS and RAS control for the lower eig……
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