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AS4LC1M16 Datasheet(PDF) 6 Page - Austin Semiconductor |
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AS4LC1M16 Datasheet(HTML) 6 Page - Austin Semiconductor |
6 / 22 page 2-98 AS4LC1M16 Austin Semiconductor, Inc., reserves the right to change products or specifications without notice. REV. 3/97 DS000020 AS4LC1M16 883C 1 MEG x 16 DRAM PRELIMINARY AUSTIN SEMICONDUCTOR, INC. TRUTH TABLE ADDRESSES FUNCTION ?R?A/S ?C?A/S/L ?C?A/S/H ?W/E ?O/E tR tC DQs NOTES Standby H H >XH>X X X X X High-Z READ: WORD L L L H L ROW COL Data-Out READ: LOWER BYTE L L H H L ROW COL Lower Byte, Upper Byte, Data-Out READ: UPPER BYTE L H L H L ROW COL Lower Byte, Data-Out Upper Byte WRITE: WORD L L L L X ROW COL Data-In (EARLY WRITE) WRITE: LOWER L L H L X ROW COL Lower Byte, Data-In BYTE (EARLY) Upper Byte, High-Z WRITE: UPPER L H L L X ROW COL Lower Byte, High-Z BYTE (EARLY) Upper Byte, Data-In READ WRITE L L L H >LL>H ROW COL Data-Out, Data-In 1, 2 EDO-PAGE-MODE 1st Cycle L H >LH>L H L ROW COL Data-Out 2 READ 2nd Cycle L H >LH>L H L n/a COL Data-Out 2 Any Cycle L L >HL>H H L n/a n/a Data-Out 2 EDO-PAGE-MODE 1st Cycle L H >LH>L L X ROW COL Data-In 1 WRITE 2nd Cycle L H >LH>L L X n/a COL Data-In 1 EDO-PAGE-MODE 1st Cycle L H >LH>LH>LL>H ROW COL Data-Out, Data-In 1, 2 READ-WRITE 2nd Cycle L H >LH>LH>LL>H n/a COL Data-Out, Data-In 1, 2 HIDDEN READ L >H>L L L H L ROW COL Data-Out 2 REFRESH WRITE L >H>L L L L X ROW COL Data-In 1, 3 ?R?A/S-ONLY REFRESH L H H X X ROW n/a High-Z CBR REFRESH H >L L L H X X X High-Z 4 NOTE: 1. These WRITE cycles may also be BYTE WRITE cycles (either ?C?A/S/L or ?C?A/S/H active). 2. These READ cycles may also be BYTE READ cycles (either ?C?A/S/L or ?C?A/S/H active). 3. EARLY WRITE only. 4. Only one ?C?A/S must be active (?C?A/S/L or ?C?A/S/H). |
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