74 series digital circuit 74170, 74LS170 4×4 register arrays (OC)

Published:2011/7/19 3:18:00 Author:TaoXi | Keyword: 74 series, digital circuit, 4×4, register arrays, OC | From:SeekIC

1024 words: the open-collector output; the 74LS670 is similar with this circuit, but the 74LS670 is the three-state output. The reading and writing addresses are separated, so the reading and writing can be operated at the same time; the storage time typical value is 20ns to form the 4-bit 4-word (can be expanded to n-bit).



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