Method and apparatus for transferring test data from a memory array - Patent Review 6014759

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Method and apparatus for transferring test data from a memory array
United States Patent	6014759
Link to this page	http://www.wikipatents.com/6014759.html
Inventor(s)	Manning; Troy A. (Meridian, ID)
Abstract	A memory device includes an output data path that uses single-ended data in conjunction with a flag signal. The output data path transfers data from an I/O circuit coupled to a memory array to an output tri-state buffer. A comparing circuit compares data from the I/O circuit to a desired data pattern if the data does not match the desired pattern outputs the flag signal. The flag signal is input to the output buffer and the output buffer outputs a tri-state condition on the data bus. Since the flag signal corresponds to more than one data bit, the tri-state condition of the output buffer is held for more than one tick of the data clock, rather than only a single tick. Consequently, the tri-state condition remains on the bus for sufficiently long that a test system can detect the tri-state condition even at very high clock frequencies.

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5854911 Watkins Dec,1998	Your vote accepted [0 after 0 votes]		5847577 Trimberger Dec,1998	Your vote accepted [0 after 0 votes]
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5737276 Shin et al. Apr,1998	Your vote accepted [0 after 0 votes]		5694065 Hamasaki et al. Dec,1997	Your vote accepted [0 after 0 votes]
5668763 Fujioka et al. Sep,1997	Your vote accepted [0 after 0 votes]		5655105 McLaury Aug,1997	Your vote accepted [0 after 0 votes]
5638335 Akiyama et al. Jun,1997	Your vote accepted [0 after 0 votes]		5636174 Rao Jun,1997	Your vote accepted [0 after 0 votes]
5636173 Schaefer Jun,1997	Your vote accepted [0 after 0 votes]		5636163 Furutani et al. Jun,1997	Your vote accepted [0 after 0 votes]
5631871 Naritake et al. May,1997	Your vote accepted [0 after 0 votes]		5627791 Wright et al. May,1997	Your vote accepted [0 after 0 votes]
5627780 Malhi May,1997	Your vote accepted [0 after 0 votes]		5621690 Jungroth et al. Apr,1997	Your vote accepted [0 after 0 votes]
5619473 Hotta Apr,1997	Your vote accepted [0 after 0 votes]		5590073 Arakawa et al. Dec,1996	Your vote accepted [0 after 0 votes]
5581197 Motley et al. Dec,1996	Your vote accepted [0 after 0 votes]		5578941 Sher et al. Nov,1996	Your vote accepted [0 after 0 votes]
5576645 Farwell Nov,1996	Your vote accepted [0 after 0 votes]		5574698 Raad Nov,1996	Your vote accepted [0 after 0 votes]
5568077 Sato et al. Oct,1996	Your vote accepted [0 after 0 votes]		5513327 Farmwald et al. Apr,1996	Your vote accepted [0 after 0 votes]
5508638 Cowles et al. Apr,1996	Your vote accepted [0 after 0 votes]		5506814 Hush et al. Apr,1996	Your vote accepted [0 after 0 votes]
5498990 Leung et al. Mar,1996	Your vote accepted [0 after 0 votes]		5497127 Sauer Mar,1996	Your vote accepted [0 after 0 votes]
5483497 Mochizuki et al. Jan,1996	Your vote accepted [0 after 0 votes]		5475642 Taylor Dec,1995	Your vote accepted [0 after 0 votes]
5473575 Farmwald et al. Dec,1995	Your vote accepted [0 after 0 votes]		5471591 Edmondson et al. Nov,1995	Your vote accepted [0 after 0 votes]
5467473 Kahle et al. Nov,1995	Your vote accepted [0 after 0 votes]		5457407 Shu et al. Oct,1995	Your vote accepted [0 after 0 votes]
5438545 Sim Aug,1995	Your vote accepted [0 after 0 votes]		5440260 Hayashi et al. Aug,1995	Your vote accepted [0 after 0 votes]
5400283 Raad Mar,1995	Your vote accepted [0 after 0 votes]		5390308 Ware et al. Feb,1995	Your vote accepted [0 after 0 votes]
5387809 Yamagishi et al. Feb,1995	Your vote accepted [0 after 0 votes]		5383157 Phelan Jan,1995	Your vote accepted [0 after 0 votes]
5361002 Casper Nov,1994	Your vote accepted [0 after 0 votes]		5347179 Casper et al. Sep,1994	Your vote accepted [0 after 0 votes]
5347177 Lipp Sep,1994	Your vote accepted [0 after 0 votes]		5321368 Hoelzle Jun,1994	Your vote accepted [0 after 0 votes]
5311481 Casper et al. May,1994	Your vote accepted [0 after 0 votes]		5281865 Yamashita et al. Jan,1994	Your vote accepted [0 after 0 votes]
5278460 Casper Jan,1994	Your vote accepted [0 after 0 votes]		5276642 Lee Jan,1994	Your vote accepted [0 after 0 votes]
5274276 Casper et al. Dec,1993	Your vote accepted [0 after 0 votes]		5254883 Horowitz et al. Oct,1993	Your vote accepted [0 after 0 votes]
5239206 Yanai Aug,1993	Your vote accepted [0 after 0 votes]		5220208 Schenck Jun,1993	Your vote accepted [0 after 0 votes]
5194765 Dunlop et al. Mar,1993	Your vote accepted [0 after 0 votes]		5179298 Hirano et al. Jan,1993	Your vote accepted [0 after 0 votes]
5165046 Hesson Nov,1992	Your vote accepted [0 after 0 votes]		5150186 Pinney et al. Sep,1992	Your vote accepted [0 after 0 votes]
5134311 Biber et al. Jul,1992	Your vote accepted [0 after 0 votes]		5128563 Hush et al. Jul,1992	Your vote accepted [0 after 0 votes]
5128560 Chern et al. Jul,1992	Your vote accepted [0 after 0 votes]		5122690 Bianchi Jun,1992	Your vote accepted [0 after 0 votes]
5111435 Miyamoto May,1992	Your vote accepted [0 after 0 votes]		4984204 Sato et al. Jan,1991	Your vote accepted [0 after 0 votes]
4958088 Farah-Bakhsh et al. Sep,1990	Your vote accepted [0 after 0 votes]		4928281 Kurosawa et al. May,1990	Your vote accepted [0 after 0 votes]
4884270 Chiu et al. Nov,1989	Your vote accepted [0 after 0 votes]		4789796 Foss Dec,1988	Your vote accepted [0 after 0 votes]
4638187 Boler et al. Jan,1987	Your vote accepted [0 after 0 votes]		4611337 Evans Sep,1986	Your vote accepted [0 after 0 votes]
4404474 Dingwall Sep,1983	Your vote accepted [0 after 0 votes]		4096402 Schroeder et al. Jun,1978	Your vote accepted [0 after 0 votes]
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