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EBE25UD6ABSA Datasheet(PDF) 6 Page - Elpida Memory |
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EBE25UD6ABSA Datasheet(HTML) 6 Page - Elpida Memory |
6 / 21 page EBE25UD6ABSA Data Sheet E0553E21 (Ver. 2.1) 6 Byte No. Function described Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments 31 Module rank density 0 1 0 0 0 0 0 0 40H 256M bytes 32 Address and command setup time before clock (tIS) -5C 0 0 1 0 0 1 0 1 25H 0.25ns* 1 -4A 0 0 1 1 0 1 0 1 35H 0.35ns* 1 33 Address and command hold time after clock (tIH) -5C 0 0 1 1 1 0 0 0 38H 0.38ns* 1 -4A 0 1 0 0 1 0 0 0 48H 0.48ns* 1 34 Data input setup time before clock (tDS) -5C 0 0 0 1 0 0 0 0 10H 0.10ns* 1 -4A 0 0 0 1 0 1 0 1 15H 0.15ns* 1 35 Data input hold time after clock (tDH) -5C 0 0 1 0 0 0 1 1 23H 0.23ns* 1 -4A 0 0 1 0 1 0 0 0 28H 0.28ns* 1 36 Write recovery time (tWR) 0 0 1 1 1 1 0 0 3CH 15ns* 1 37 Internal write to read command delay (tWTR) -5C 0 0 0 1 1 1 1 0 1EH 7.5ns* 1 -4A 0 0 1 0 1 0 0 0 28H 10ns* 1 38 Internal read to precharge command delay (tRTP) 0 0 0 1 1 1 1 0 1EH 7.5ns* 1 39 Memory analysis probe characteristics 0 0 0 0 0 0 0 0 00H TBD 40 Extension of Byte 41 and 42 0 0 0 0 0 0 0 0 00H Undefined 41 Active command period (tRC) 0 0 1 1 0 1 1 1 37H 55ns* 1 42 Auto refresh to active/ Auto refresh command cycle (tRFC) 0 1 1 0 1 0 0 1 69H 105ns* 1 43 SDRAM tCK cycle max. (tCK max.) 1 0 0 0 0 0 0 0 80H 8ns* 1 44 Dout to DQS skew -5C 0 0 0 1 1 1 1 0 1EH 0.30ns* 1 -4A 0 0 1 0 0 0 1 1 23H 0.35ns* 1 45 Data hold skew (tQHS) -5C 0 0 1 0 1 0 0 0 28H 0.40ns* 1 -4A 0 0 1 0 1 1 0 1 2DH 0.45ns* 1 46 PLL relock time 0 0 0 0 0 0 0 0 00H Undefined 47 to 61 0 0 0 0 0 0 0 0 00H 62 SPD Revision 0 0 0 1 0 0 0 0 10H Rev. 1.0 63 Checksum for bytes 0 to 62 -5C 0 1 1 1 1 0 1 1 7BH -4A 1 1 1 1 1 1 1 1 FFH 64 to 65 Manufacturer’s JEDEC ID code 0 1 1 1 1 1 1 1 7FH Continuation code 66 Manufacturer’s JEDEC ID code 1 1 1 1 1 1 1 0 FEH Elpida Memory 67 to 71 Manufacturer’s JEDEC ID code 0 0 0 0 0 0 0 0 00H 72 Manufacturing location × × × × × × × × ×× (ASCII-8bit code) |
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