EBE11UD8AHWA Datasheet, PDF (6/28 Pages) Elpida Memory – 1GB Unbuffered DDR2 SDRAM DIMM

EBE11UD8AHWA
Byte No.
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47 to 61
62
63
64 to 65
66
67 to 71
72
73
74
75
76
77
Function described
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments
Minimum row precharge time (tRP)
-8E
0 0 1 1 0 0 1 0 32H
-8G
0 0 1 1 1 1 0 0 3CH
Minimum row active to row active delay
(tRRD)
0
0
0
1
1
1
1
0
1EH
Minimum /RAS to /CAS delay (tRCD)
-8E
0
0
1
1
0
0
1
0
32H
-8G
0 0 1 1 1 1 0 0 3CH
Minimum active to precharge time
(tRAS)
0 0 1 0 1 1 0 1 2DH
12.5ns
15ns
7.5ns
12.5ns
15ns
45ns
Module rank density
1 0 0 0 0 0 0 0 80H
Address and command setup time
before clock (tIS)
0 0 0 1 0 1 1 1 17H
Address and command hold time after
clock (tIH)
0
0
1
0
0
1
0
1
25H
Data input setup time before clock
(tDS)
0 0 0 0 0 1 0 1 05H
Data input hold time after clock (tDH) 0 0 0 1 0 0 1 0 12H
Write recovery time (tWR)
0 0 1 1 1 1 0 0 3CH
512M bytes
0.17ns*¹
0.25ns*¹
0.05ns*¹
0.12ns*¹
15ns*¹
Internal write to read command delay
(tWTR)
0
0
0
1
1
1
1
0
1EH
Internal read to precharge command
delay (tRTP)
0
0
0
1
1
1
1
0
1EH
Memory analysis probe characteristics 0 0 0 0 0 0 0 0 00H
Extension of Byte 41 and 42
-8E
0 0 1 1 0 0 0 0 30H
-8G
0 0 0 0 0 0 0 0 00H
7.5ns*¹
7.5ns*¹
TBD
Undefined
Active command period (tRC)
-8E
-8G
0 0 1 1 1 0 0 1 39H
0 0 1 1 1 1 0 0 3CH
57.5ns*¹
60ns*¹
Auto refresh to active/
Auto refresh command cycle (tRFC)
0
1
1
0
1
0
0
1
69H
SDRAM tCK cycle max. (tCK max.) 1 0 0 0 0 0 0 0 80H
Dout to DQS skew
0 0 0 1 0 1 0 0 14H
Data hold skew (tQHS)
0 0 0 1 1 1 1 0 1EH
105ns*¹
8ns*¹
0.20ns*¹
0.30ns*¹
PLL relock time
0 0 0 0 0 0 0 0 00H
Undefined
0 0 0 0 0 0 0 0 00H
Undefined
SPD Revision
Checksum for bytes 0 to 62
-8E
0 0 0 1 0 0 1 0 12H
0 1 0 1 1 0 0 0 58H
Rev. 1.2
-8G
0 0 1 1 1 1 0 0 3CH
Manufacturer’s JEDEC ID code
0 1 1 1 1 1 1 1 7FH
Continuation code
Manufacturer’s JEDEC ID code
1 1 1 1 1 1 1 0 FEH
Elpida Memory
Manufacturer’s JEDEC ID code
0 0 0 0 0 0 0 0 00H
Manufacturing location
× × × × × × × × ××
(ASCII-8bit code)
Module part number
0 1 0 0 0 1 0 1 45H
E
Module part number
0 1 0 0 0 0 1 0 42H
B
Module part number
0 1 0 0 0 1 0 1 45H
E
Module part number
0 0 1 1 0 0 0 1 31H
1
Module part number
0 0 1 1 0 0 0 1 31H
1
Preliminary Data Sheet E1028E10 (Ver. 1.0)
6