Memory card having controller providing adjustable refresh to a

Details Memory card having controller providing adjustable refresh to a Memory card having controller providing adjustable refresh to a

1991-05-15

1994-09-06

Dixon, Joseph L.

Boots, shoes, and leggings

364DIG1, 364DIG2, 364964, 365222, G06F 1200

Patent

active

053455746

ABSTRACT:
A dynamic access random access card is provided with a dynamic random access memory and a source for generating a plurality of reference clock pulses. A control circuit generates refresh operations of the dynamic access memory in response to the plurality of reference clock pulses generated by the source, the initiation of the refresh operations being independent of any external refresh request. The refresh operations are interrupted and the dynamic random access memory is set to a standby condition upon detection of a predetermined external signal, thereby permitting read/write operations of the dynamic random access memory.

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Motorola, Semiconductor Application Note, AN987 Entitled "DRAM Refresh Modes," Memory Device Data, DL113/D, Rev. 1991, pp. 10-6 to 10-7.

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