Memory device having a reduced number of pins

Details Memory device having a reduced number of pins Memory device having a reduced number of pins

1978-04-11

1979-03-20

Fears, Terrell W.

Static information storage and retrieval

Powering

365191, 365229, G11C 1300

Patent

active

041457609

ABSTRACT:
A memory device includes a circuit for reducing the number of pins or external terminals on the memory device. A threshold detector within the circuit detects the difference in voltage between signals applied at two external pins. A clocking signal at one pin provides, in addition to a synchronizing function, a memory device select function, and a signal at the other pin provides memory mode select as well as memory address, data input and data output functions. Switching transistors controlled by the output of the threshold detector connect the external pins to the power and ground terminals of an internal power supply so that the signals at the two external pins also provide the power and ground signals to the memory device.

REFERENCES:
patent: 4044339 (1977-08-01), Berg

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