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IS42S81600A-7T Datasheet(PDF) 10 Page - Integrated Silicon Solution, Inc |
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IS42S81600A-7T Datasheet(HTML) 10 Page - Integrated Silicon Solution, Inc |
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10 / 61 page  ISSI® 10 Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774 PRELIMINARY INFORMATION Rev. 00C 01/20/05 IS42S81600A, IS42S16800A, IS42S32400A CS CS CS CS CS RAS RAS RAS RAS RAS CAS CAS CAS CAS CAS WE WE WE WE WE Address Command Action Idle H X X X X DESL Nop L HHH X NOP Nop L HHL X BST Nop L H L H BA, CA, A10 READ/READA ILLEGAL (2) L H L L A, CA, A10 WRIT/ WRITA ILLEGAL(2) L L H H BA, RA ACT Row activating L L H L BA, A10 PRE/PALL Nop L L L H X REF Auto refresh L L L L OC, BA1=L MRS Mode register set L L L L OC, BA1=H EMRS Extended mode register set Row Active H X X X X DESL Nop L HHH X NOP Nop L HHL X BST Nop L H L H BA, CA, A10 READ/READA Begin read (3) L H L L BA, CA, A10 WRIT/ WRITA Begin write (3) L L H H BA, RA ACT ILLEGAL (2) L L H L BA, A10 PRE/PALL Precharge/Precharge all banks( L L L H X REF ILLEGAL L L L L OC, BA MRS/EMRS ILLEGAL Read H X X X X DESL Continue burst to end to Row active L H H H X NOP Continue burst to end Row Row active L H H L X BST Burst stop Row active L H L H BA, CA, A10 READ/READA Terminate burst, begin new read (5) L H L L BA, CA, A10 WRIT/WRITA Terminate burst, begin write (5, 6) L L H H BA, RA ACT ILLEGAL (2) L L H L BA, A10 PRE/PALL Terminate burst Precharging L L L H X REF ILLEGAL L L L L OC, BA MRS/EMRS ILLEGAL Write H X X X X DESL Continue burst to end Write recovering L H H H X NOP Continue burst to end Write recovering L H H L X BST Burst stop Row active L H L H BA, CA, A10 READ/READA Terminate burst, start read : Determine AP (5, 6) L H L L BA, CA, A10 WRIT/WRITA Terminate burst, new write : Determine AP (5) L L H H BA, RA RA ACT ILLEGAL (2) L L H L BA, A10 PRE/PALL Terminate burst Precharging (7) L L L H X REF ILLEGAL L L L L OC, BA MRS/EMRS ILLEGAL FUNCTIONAL TRUTH TABLE Note: H=VIH, L=VIL x= VIH or VIL, V = Valid Data, BA= Bank Address, CA+Column Address, RA=Row Address, OC= Op-Code |
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