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M2V56S20ATP-5 Datasheet(PDF) 7 Page - Mitsubishi Electric Semiconductor |
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M2V56S20ATP-5 Datasheet(HTML) 7 Page - Mitsubishi Electric Semiconductor |
7 / 49 page Jul '01 MITSUBISHI LSIs MITSUBISHI ELECTRIC SDRAM (Rev.1.01) Single Data Rate M2V56S20/ 30/ 40 ATP -5, -6, -7 256M Synchronous DRAM 7 FUNCTION TRUTH TABLE Current State /CS /RAS /CAS /WE Address Command Action IDLE H X X X X DESEL NOP L H H H X NOP NOP L H H L X TBST ILLEGAL*2 L H L X BA, CA, A10 READ / WRITE ILLEGAL*2 L L H H BA, RA ACT Bank Active, Latch RA L L H L BA, A10 PRE / PREA NOP*4 L L L H X REFA Auto-Refresh*5 L L L L Op-Code, Mode-Add MRS Mode Register Set*5 ROW ACTIVE H X X X X DESEL NOP L H H H X NOP NOP L H H L X TBST NOP L H L H BA, CA, A10 READ / READA Begin Read, Latch CA, Determine Auto-Precharge L H L L BA, CA, A10 WRITE / WRITEA Begin Write, Latch CA, Determine Auto-Precharge L L H H BA, RA ACT Bank Active / ILLEGAL*2 L L H L BA, A10 PRE / PREA Precharge / Precharge All L L L H X REFA ILLEGAL L L L L Op-Code, Mode-Add MRS ILLEGAL READ H X X X X DESEL NOP (Continue Burst to END) L H H H X NOP NOP (Continue Burst to END) L H H L X TBST Terminate Burst L H L H BA, CA, A10 READ / READA Terminate Burst, Latch CA, Begin New Read, Determine Auto-Precharge*3 L H L L BA, CA, A10 WRITE / WRITEA Terminate Burst, Latch CA, Begin Write, Determine Auto- Precharge*3 L L H H BA, RA ACT Bank Active / ILLEGAL*2 L L H L BA, A10 PRE / PREA Terminate Burst, Precharge L L L H X REFA ILLEGAL L L L L Op-Code, Mode-Add MRS ILLEGAL |
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