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MK31VT432-10YC Datasheet(PDF) 10 Page - OKI electronic componets |
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MK31VT432-10YC Datasheet(HTML) 10 Page - OKI electronic componets |
10 / 11 page MK31VT432-10YC Ñ98.07.21Ò Page 10/11 FUNCTION TRUTH TABLE (Table1) (2/2) Current State /CS /RAS /CAS /WE BA ADDR Action Precharge H X X X X X NOP Æ Idle after tRP LH H H X X NOP Æ Idle after tRP L H H L BA X ILLEGAL 2 L H L X BA CA ILLEGAL 2 L L H H BA RA ILLEGAL 2 L L H L BA A10 NOP 4 LLL X X X ILLEGAL Write H XX XX X NOP Recovery L H H H X X NOP L H H L BA X ILLEGAL 2 L H L X BA CA ILLEGAL 2 L L H H BA RA ILLEGAL 2 L L H L BA A10 ILLEGAL 2 LLL X X X ILLEGAL Row Active H X X X X X NOP Æ Row Active after tRCD LH H H X X NOP Æ Row Active after tRCD L H H L BA X ILLEGAL 2 L H L X BA CA ILLEGAL 2 L L H H BA RA ILLEGAL 2 L L H L BA A10 ILLEGAL 2 LLL X X X ILLEGAL Refresh H XX XX X NOP Æ Idle after tRC L HHX X X NOP Æ Idle after tRC LH LX X X ILLEGAL L L H X X X ILLEGAL LLL X X X ILLEGAL Mode Resister H X X X X X NOP Access L H H H X X NOP L H H L X X ILLEGAL LH LX X X ILLEGAL L L X X X X ILLEGAL ABBREVIATIONS RA = Row Address BA = Bank Address NOP = No Operation command CA = Column Address AP = Auto Precharge Notes: 1. All inputs will be enabled when CKE is set high for at least 1 cycle prior to the inputs. 2. Illegal to bank in specified state, but may be legal in some cases depending on the state of bank selection. 3. Satisfy the timing of ICCD and tWR to prevent bus contention. 4. NOP to bank precharging or in idle state. Precharges activated bank by BA or A10. 5. Illegal if any bank is not idle. |
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