器件名称: AK481024G
功能描述: 1,048,576 x 8 Bit CMOS Dynamic Random Access Memory
文件大小: 84.6KB 共2页
简 介:Accutek Microcircuit Corporation
DESCRIPTION
The Accutek AK481024 high density memory module is a random access memory organized in 1 Meg x 8 bit words. The assembly consists of eight standard 1 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. This packaging approach provides a 6 to 1 density increase over standard DIP packaging. The operation of the AK481024 is identical to eight 1 Meg x 1 DRAMs. The data input is tied to the data output and brought out separately for each device, with common RAS, CAS and WE 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.
AK481024S / AK481024G 1,048,576 x 8 Bit CMOS Dynamic Random Access Memory
Front View 30-Pin SIM
1
30
30-Pin SIP
1
FEATURES
1,048,576 x 8 bit organization Optional 30 Pad leadless SIM (Single In-Line Module) or 30 Pin leaded SIP (Single In-Line Package) JEDEC standard pinout Each device has common D and Q lines with common RAS, CAS and WE control CAS-before-RAS refresh Power 3.08 Watt Max Active (80 nSEC) 2.64 Watt Max Active (100 nSEC) 2.20 Watt Max Active (120 nSEC) 44 mW Max Standby Operating free air temperature 00C to 700C Upward compatible with AK584096 and AK5816384 Downwar……
