Apparatus and method for a data path implemented using non-diffe

Details Apparatus and method for a data path implemented using non-diffe Apparatus and method for a data path implemented using non-diffe

1997-11-18

1998-10-06

Yoo, Do Hyun

Static information storage and retrieval

Read/write circuit

Differential sensing

36518907, 36518909, 326 66, G11C 700

Patent

active

058187740

ABSTRACT:
The differential output signals from the sense amplifiers of a dynamic random access memory unit are applied to apparatus which converts these output signals to a non-differential current mode signal. The non-differential current mode signal is applied to a data line. The output signal from the data line is converted to a small swing voltage signal. The small swing voltage signal is compared with a reference voltage level thereby generating a full swing voltage output signal. The reference voltage level is generated by a sample and hold circuit which samples the small swing voltage level when the differential signals from the sensors are equal. The sampled level is stored for comparison with the small swing voltage level resulting from the sensing of the stored voltage level. The full swing voltage output signal is suitable for use with CMOS circuits associated with the dynamic random access memory unit.

REFERENCES:
patent: 4797583 (1989-01-01), Ueno et al.
patent: 5455797 (1995-10-01), Etoh et al.

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