Static information storage and retrieval – Addressing – Sync/clocking
Patent
1999-05-06
2000-09-26
Phan, Trong
Static information storage and retrieval
Addressing
Sync/clocking
36523003, 36523008, G11C 800
Patent
active
061250783
ABSTRACT:
For a write operation, a synchronous semiconductor memory device in a single-data-rate SDRAM operation mode selects a memory cell column in accordance with a column select signal produced from a write clock produced in synchronization with an external clock signal without shifting the write clock. In a double-data-rate SDRAM operation mode, the synchronous semiconductor memory device selects the memory cell column in accordance with the column select signal produced from the write clock produced in synchronization with the external clock signal and shifted by selected clocks.
REFERENCES:
patent: 5384735 (1995-01-01), Park et al.
patent: 5497355 (1996-03-01), Mills et al.
patent: 5892730 (1999-04-01), Sato et al.
patent: 5923613 (1999-07-01), Tien et al.
patent: 5991232 (1999-11-01), Matsumura et al.
Ishikawa Masatoshi
Ooishi Tsukasa
Tomishima Shigeki
Mitsubishi Denki & Kabushiki Kaisha
Phan Trong
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