Semiconductor memory device having a small number of signal line

Details Semiconductor memory device having a small number of signal line Semiconductor memory device having a small number of signal line

1988-03-21

1990-05-29

Shoop, Jr., William M.

Coded data generation or conversion

Digital code to digital code converters

341110, 341155, H03M 100

Patent

active

049299450

ABSTRACT:
A digital signal is converted to an analog signal by an analog voltage generator. The analog signal is transferred via at least one analog signal line, to a digital voltage generator in which the analog signal transferred via the analog signal line is converted into a digital signal. In this way, the digital signal is converted to an analog signal at the input section of the semiconductor device, the converted analog signal is transferred to the digital signal generator through an analog signal line, and is converted back to a digital signal. Therefore, the number of wirings of the signal lines can be decreased, and hence the wiring occupying area on the semiconductor chip can be reduced.

REFERENCES:
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patent: 4051469 (1977-09-01), Ninomiya
patent: 4176344 (1979-11-01), Saari et al.
patent: 4331892 (1982-05-01), Miskin et al.
patent: 4345241 (1982-08-01), Takeuchi et al.
patent: 4761634 (1988-08-01), Yamaguchi et al.

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