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EBE51RD8AEFA Datasheet(数据表) 5 Page - Elpida Memory |
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EBE51RD8AEFA Datasheet(HTML) 5 Page - Elpida Memory |
5 page ![]() EBE51RD8AEFA Data Sheet E0645E30 (Ver. 3.0) 5 Serial PD Matrix* 1 Byte No. Function described Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments 0 Number of bytes utilized by module manufacturer 1 0 0 0 0 0 0 0 80H 128 bytes 1 Total number of bytes in serial PD device 0 0 0 0 1 0 0 0 08H 256 bytes 2 Memory type 0 0 0 0 1 0 0 0 08H DDR2 SDRAM 3 Number of row address 0 0 0 0 1 1 1 0 0EH 14 4 Number of column address 0 0 0 0 1 0 1 0 0AH 10 5 Number of DIMM ranks 0 1 1 0 0 0 0 0 60H 1 6 Module data width 0 1 0 0 1 0 0 0 48H 72 7 Module data width continuation 0 0 0 0 0 0 0 0 00H 0 8 Voltage interface level of this assembly 0 0 0 0 0 1 0 1 05H SSTL 1.8V 9 DDR SDRAM cycle time, CL = 5 -5C 0 0 1 1 1 1 0 1 3DH 3.75ns* 1 -4A 0 1 0 1 0 0 0 0 50H 5.0ns* 1 10 SDRAM access from clock (tAC) -5C 0 1 0 1 0 0 0 0 50H 0.5ns* 1 -4A 0 1 1 0 0 0 0 0 60H 0.6ns* 1 11 DIMM configuration type 0 0 0 0 0 0 1 0 02H ECC 12 Refresh rate/type 1 0 0 0 0 0 1 0 82H 7.8 µs 13 Primary SDRAM width 0 0 0 0 1 0 0 0 08H × 8 14 Error checking SDRAM width 0 0 0 0 1 0 0 0 08H × 8 15 Reserved 0 0 0 0 0 0 0 0 00H 0 16 SDRAM device attributes: Burst length supported 0 0 0 0 1 1 0 0 0CH 4,8 17 SDRAM device attributes: Number of banks on SDRAM device 0 0 0 0 0 1 0 0 04H 4 18 SDRAM device attributes: /CAS latency 0 0 1 1 1 0 0 0 38H 3, 4, 5 19 Reserved 0 0 0 0 0 0 0 0 00H 0 20 DIMM type information 0 0 0 0 0 0 0 1 01H Registered 21 SDRAM module attributes 0 0 0 0 0 0 0 0 00H Normal 22 SDRAM device attributes: General 0 0 0 0 0 0 0 1 01H Weak Driver 23 Minimum clock cycle time at CL = 4 -5C 0 0 1 1 1 1 0 1 3DH 3.75ns* 1 -4A 0 1 0 1 0 0 0 0 50H 5.0ns* 1 24 Maximum data access time (tAC) from clock at CL = 4 -5C 0 1 0 1 0 0 0 0 50H 0.5ns* 1 -4A 0 1 1 0 0 0 0 0 60H 0.6ns* 1 25 Minimum clock cycle time at CL = 3 -5C, -4A 0 1 0 1 0 0 0 0 50H 5.0ns* 1 26 Maximum data access time (tAC) from clock at CL = 3 -5C, -4A 0 1 1 0 0 0 0 0 60H 0.6ns* 1 |