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HB54R5128KN-10B Datasheet(PDF) 6 Page - Elpida Memory |
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HB54R5128KN-10B Datasheet(HTML) 6 Page - Elpida Memory |
6 / 16 page HB54R5128KN-A75B/B75B/10B Data Sheet E0189H40 (Ver. 4.0) 6 Byte No. Function described Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments 28 Minimum row active to row active delay (tRRD) 0 0 1 1 1 1 0 0 3C 15ns 29 Minimum /RAS to /CAS delay (tRCD) 0 1 0 1 0 0 0 0 50 20ns 30 Minimum active to precharge time (tRAS) -A75B/B75B 0 0 1 0 1 1 0 1 2D 45ns -10B 0 0 1 1 0 0 1 0 32 50ns 31 Module bank density 0 1 0 0 0 0 0 0 40 2 banks 256MB 32 Address and command setup time before clock (tIS) -A75B/B75B 1 0 0 1 0 0 0 0 90 0.9ns* 5 -10B 1 0 1 1 0 0 0 0 B0 1.1ns* 5 33 Address and command hold time after clock (tIH) -A75B/B75B 1 0 0 1 0 0 0 0 90 0.9ns* 5 -10B 1 0 1 1 0 0 0 0 B0 1.1ns* 5 34 Data input setup time before clock (tDS) -A75B/B75B 0 1 0 1 0 0 0 0 50 0.5ns* 5 -10B 0 1 1 0 0 0 0 0 60 0.6ns* 5 35 Data input hold time after clock (tDH) -A75B/B75B 0 1 0 1 0 0 0 0 50 0.5ns* 5 -10B 0 1 1 0 0 0 0 0 60 0.6ns* 5 36 to 40 Superset information 0 0 0 0 0 0 0 0 00 Future use 41 Active command period (tRC) -A75B/B75B 0 1 0 0 0 0 0 1 41 65ns* 5 -10B 0 1 0 0 0 1 1 0 46 70ns* 5 42 Auto refresh to active/ Auto refresh command cycle (tRFC) -A75B/B75B 0 1 0 0 1 0 1 1 4B 75ns* 5 -10B 0 1 0 1 0 0 0 0 50 80ns* 5 43 SDRAM tCK cycle max. (tCK max.) 0 0 1 1 0 0 0 0 30 12ns* 5 44 Dout to DQS skew -A75B/B75B 0 0 1 1 0 0 1 0 32 500ps* 5 -10B 0 0 1 1 1 1 0 0 3C 600ps* 5 45 Data hold skew (tQHS) -A75B/B75B 0 1 1 1 0 1 0 1 75 750ps* 5 -10B 1 0 1 0 0 0 0 0 A0 1000ps* 5 46 to 61 Superset information 0 0 0 0 0 0 0 0 00 Future use 62 SPD revision 0 0 0 0 0 0 0 0 00 Initial 63 Checksum for bytes 0 to 62 -A75B 1 0 1 1 0 0 1 1 B3 179 -B75B 1 1 1 0 0 0 1 1 E3 227 -10B 1 0 1 0 1 0 0 0 A8 168 64 Manufacturer’s JEDEC ID code 0 0 0 0 0 1 1 1 07 HITACHI 65 to 71 Manufacturer’s JEDEC ID code 0 0 0 0 0 0 0 0 00 72 Manufacturing location × × × × × × × × ×× * 2 (ASCII-8bit code) 73 Module part number 0 1 0 0 1 0 0 0 48 H 74 Module part number 0 1 0 0 0 0 1 0 42 B 75 Module part number 0 0 1 1 0 1 0 1 35 5 |
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