Static information storage and retrieval – Hardware for storage elements
Patent
1992-03-31
1992-11-17
Clawson, Jr., Joseph E.
Static information storage and retrieval
Hardware for storage elements
365 63, 365 92, 365174, 36523003, 361395, G11C 504
Patent
active
051649160
ABSTRACT:
A high-density memory module has thirty-two memory integrated circuit chips, sixteen decoupling capacitors, and two resistors mounted on a double-sided multi-layer printed wiring board having a series of edge terminals for connection to a motherboard. One side of the board has a first 2.times.8 rectangular matrix of the chips, and the other side of the board has a second 2.times.8 matrix of the chips. The chips are grouped into four "strings," each of which includes eight chips which receive the same row address strobe and column address strobe. Each string is selected by a unique row address strobe. All four strings share a common data bus. Two of the strings share a first column address strobe and a first address bus, and the other two strings share a second column address strobe and a second address bus, to facilitate four-way interleaved memory access. Address, data, power, and ground terminals are distributed and dispersed along the series of edge terminals, but terminals for one address bus is disposed between a first half and a second half of the terminals for the other address bus. One of the two resistors is used for indicating the type of the memory chips in the memory module, and the other resistor is interconnected with similar resistors in other memory modules on the motherboard to provide a combined resistance indicating the number of memory modules on the motherboard.
REFERENCES:
patent: 4266282 (1981-05-01), Henle et al.
patent: 4375665 (1983-03-01), Schmidt
patent: 4426689 (1984-01-01), Henle et al.
patent: 4656605 (1987-04-01), Clayton
patent: 4727513 (1988-02-01), Clayton
patent: 4813014 (1989-03-01), De Bell
patent: 4849944 (1989-07-01), Matsushita
patent: 4958322 (1990-09-01), Kosugi et al.
patent: 5016223 (1991-05-01), Kimura et al.
patent: 5025415 (1991-06-01), Masuyama et al.
patent: 5089993 (1992-02-01), Neal et al.
patent: 5119338 (1992-06-01), Saito
Samsung MOS Memory Data Book, vol. 1, United States, 1991, pp. 509-675.
"Intel iSM001DR09P (9-chip) 1M.times.9 (1,048,576.times.9) Dynamic RAM Memory Module with Fast Page Mode," United States, 1991, pp. 7-111 to 7-112.
Texas Instruments TM124 MBK36A 1,048,576 by 36-Bit Dynamic RAM Module Houston, Tex., 1991, pp. 6-89 to 6-95.
Bruce, II E. William
Coe Stephen R.
DaCosta Derrick D.
Pierce Donald C.
Wu Andrew L.
Clawson Jr. Joseph E.
Digital Equipment Corporation
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