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K7M161825A-QC65 Datasheet(PDF) 8 Page - Samsung semiconductor |
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K7M161825A-QC65 Datasheet(HTML) 8 Page - Samsung semiconductor |
8 / 18 page 512Kx36 & 1Mx18 Flow-Through NtRAMTM - 8 - Rev 3.0 Nov. 2003 K7M161825A K7M163625A SYNCHRONOUS TRUTH TABLE Notes : 1. X means "Don ′t Care". 2. The rising edge of clock is symbolized by ( ↑). 3. A continue deselect cycle can only be enterd if a deselect cycle is executed first. 4. WRITE = L means Write operation in WRITE TRUTH TABLE. WRITE = H means Read operation in WRITE TRUTH TABLE. 5. Operation finally depends on status of asynchronous input pins(ZZ and OE). CS1 CS2 CS 2 ADV WE BWx OE CKE CLK ADDRESS ACCESSED OPERATION H X X L X X X L ↑ N/A Not Selected X L X L X X X L ↑ N/A Not Selected X X H L X X X L ↑ N/A Not Selected X X X H X X X L ↑ N/A Not Selected Continue L H L L H X L L ↑ External Address Begin Burst Read Cycle X X X H X X L L ↑ Next Address Continue Burst Read Cycle L H L L H X H L ↑ External Address NOP/Dummy Read X X X H X X H L ↑ Next Address Dummy Read L H L L L L X L ↑ External Address Begin Burst Write Cycle X X X H X L X L ↑ Next Address Continue Burst Write Cycle L H L L L H X L ↑ N/A NOP/Write Abort X X X H X H X L ↑ Next Address Write Abort X X X X X X X H ↑ Current Address Ignore Clock WRITE TRUTH TABLE( x36) Notes : 1. X means "Don ′t Care". 2. All inputs in this table must meet setup and hold time around the rising edge of CLK( ↑). WE BWa BWb BW c BW d OPERATION H X X X X READ L L H H H WRITE BYTE a L H L H H WRITE BYTE b L H H L H WRITE BYTE c L H H H L WRITE BYTE d L L L L L WRITE ALL BYTEs L H H H H WRITE ABORT/NOP TRUTH TABLES WRITE TRUTH TABLE(x18) Notes : 1. X means "Don ′t Care". 2. All inputs in this table must meet setup and hold time around the rising edge of CLK( ↑). WE BWa BWb OPERATION H X X READ L L H WRITE BYTE a L H L WRITE BYTE b L L L WRITE ALL BYTEs L H H WRITE ABORT/NOP |
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