04587640 is referenced by 37 patents and cites 1 patents.

A cassette type semiconductor memory device is provided with a RAM and a back-up battery within a cassette, with a connector connected to the main frame of a data processor. The RAM and its periphery circuit, as well, are backed up by the battery. The live-line insertion/removal of the memory pack is detected by monitoring the power source voltage. At this time, memory access is prohibited. Further, flow of current from the main frame into the power source line is prevented.

Title
Cassette type semiconductor memory device
Application Number
6/550209
Publication Number
4587640
Application Date
November 9, 1983
Publication Date
May 6, 1986
Inventor
Yuichi Saitoh
Tokyo
JP
Agent
Cushman Darby and Cushman
Assignee
Tokyo Shibaura Denki Kabushiki Kaisha
JP
IPC
G11C 13/00
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