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S40B Datasheet(PDF) 11 Page - Mitsubishi Electric Semiconductor |
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S40B Datasheet(HTML) 11 Page - Mitsubishi Electric Semiconductor |
11 / 52 page MITSUBISHI ELECTRIC Oct. '99 MITSUBISHI LSIs PC133 SDRAM (Rev.0.5) M2V64S20BTP-6 (4-BANK x 4194304-WORD x 4-BIT) M2V64S30BTP-6 (4-BANK x 2097152-WORD x 8-BIT) M2V64S40BTP-6 (4-BANK x 1048576-WORD x 16-BIT) 64M bit Synchronous DRAM 11 Current State CKE n-1 CKE n /CS /RAS /CAS /WE Add Action SELF- REFRESH*1 H X X X X X X INVALID L H H X X X X Exit Self-Refresh (Idle after tRC) L H L H H H X Exit Self-Refresh (Idle after tRC) L H L H H L X ILLEGAL L H L H L X X ILLEGAL L H L L X X X ILLEGAL L L X X X X X NOP (Maintain Self-Refresh) POWER DOWN H X X X X X X INVALID L H X X X X X Exit Power Down to Idle L L X X X X X NOP (Maintain Self-Refresh) ALL BANKS IDLE*2 H H X X X X X Refer to Function Truth Table H L L L L H X Enter Self-Refresh H L H X X X X Enter Power Down H L L H H H X Enter Power Down H L L H H L X ILLEGAL H L L H L X X ILLEGAL H L L L X X X ILLEGAL L X X X X X X Refer to Current State =Power Down ANY STATE other than listed above H H X X X X X Refer to Function Truth Table H L X X X X X Begin CLK Suspend at Next Cycle*3 L H X X X X X Exit CLK Suspend at Next Cycle*3 L L X X X X X Maintain CLK Suspend FUNCTION TRUTH TABLE for CKE ABBREVIATIONS: H=High Level, L=Low Level, X=Don't Care NOTES: 1. CKE Low to High transition will re-enable CLK and other inputs asynchronously. A minimum setup time must be satisfied before any command other than EXIT. 2. Power-Down and Self-Refresh can be entered only from the All Banks Idle State. 3. Must be legal command. |
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Similar Description - S40B |
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