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K7N801801B-QC16 Datasheet(PDF) 8 Page - Samsung semiconductor |
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K7N801801B-QC16 Datasheet(HTML) 8 Page - Samsung semiconductor |
8 / 18 page 256Kx36 & 512Kx18 Pipelined NtRAMTM - 8 - Rev 3.0 Nov. 2003 K7N803601B K7N801801B 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 CS2 ADV WE BWx OE CKE CLK ADDRESS ACCESSED OPERATION H X X L XXX L ↑ N/A Not Selected XL XL X X X L ↑ N/A Not Selected XX H L XXX L ↑ N/A Not Selected XXX H XXX L ↑ N/A Not Selected Continue LH L L H X L L ↑ External Address Begin Burst Read Cycle XXX H X X L L ↑ Next Address Continue Burst Read Cycle LH L L H X H L ↑ External Address NOP/Dummy Read XXX H X X H L ↑ Next Address Dummy Read L H LLLL X L ↑ External Address Begin Burst Write Cycle XXX H X L X L ↑ Next Address Continue Burst Write Cycle L H LLL H X L ↑ N/A NOP/Write Abort X X X HX HX L ↑ Next Address Write Abort XXXXXXX 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 BWc BWd OPERATION H XXXX 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 LLLL L WRITE ALL BYTEs L HHHH WRITE ABORT/NOP TRUTH TABLES |
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