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RMS132UAF-6E Datasheet(PDF) 11 Page - Emerging Memory & Logic Solutions Inc |
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RMS132UAF-6E Datasheet(HTML) 11 Page - Emerging Memory & Logic Solutions Inc |
11 / 26 page Advance Information The specifications of this device are subject to change without notice. For latest documentation see http://www.emlsi.com. 11 RMS132UAW Table5: Command Truth Table X X X X X X X X X X X X L/H L/H L/H L/H X X X X X DQM L X H H H L X H No Operation (NOP) X X X X H X H Command Inhinit (NOP) V V V L H H H L H H H L H H H L X X H L Deep Power Down Exit 6 X H H L L H Deep Power Down Entry X X H L Clock Suspend Exit X X X X H L H Clock Suspend Entry X X X X H H L Precharge Down Exit X X X X H L H Precharge Power Down Entry 2 X X X X H H L Self Refresh Exit 3 X H L L L L H Self Refresh Entry 3 X H L L L H H Auto Refresh X L H H L H H Burst Stop L Bank L H L L X H Precharge Selected Bank H X L H L L X H Precharge All Banks 5 H Bank/Col L L H L X H Write with Autoprecharge 5 L Bank/Col L L H L X H Write 5 H Bank/Col H L H L X H Read with Autoprecharge 5 L Bank/Col H L H L X H Read Bank/Row H H L L X H Active (select bank and activate row) 4 OP CODE L L L L X H Extended Mode Register Set 4 OP CODE L L L L X H Mode Register Set Note A10 ADDR /WE /CAS /RAS /CS CKEn CKEn-1 Function Note : 1. CKEn is the logic state of CKE at clock edge n; CKEn-1 was the state of CKE at the previous clock edge. H: High Level, L: Low Level, X: Don't Care, V: Valid 2. Exiting Self Refresh occurs by asynchronously bringing CKE from low to high and will put the device in the all banks idle state once tXSR is met. Command Inhibit or NOP commands should be issued on any clock edges occuring during the tXSR period. A minimum of two NOP commands must be provided during tXSR period. 3. During refresh operation, internal refresh counter controls row addressing; all inputs and I/Os are “Don’t Care” except for CKE. 4. A0-A10 define OP CODE written to the mode register, and BA must be issued 0 in the mode register set, and 1 in the extended mode register set. 5. DQM “L” means the data Write/Ouput Enable and “H” means the Write inhibit/Output High-Z. Write DQM Latency is 0 CLK and Read DQM Latency is 2 CLK. 6. Standard SDRAM parts assign this command sequence as Burst Terminate. For Bat Ram parts, the Burst Terminate command is assigned to the Deep Power Down function. |
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