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EBD51RC4AKFA Datasheet(PDF) 6 Page - Elpida Memory

Part No. EBD51RC4AKFA
Description  512MB Registered DDR SDRAM DIMM (64M words X 72 bits, 1 Rank)
Download  19 Pages
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Manufacturer  ELPIDA [Elpida Memory]
Direct Link  http://www.elpida.com/en
Logo ELPIDA - Elpida Memory

EBD51RC4AKFA Datasheet(HTML) 6 Page - Elpida Memory

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EBD51RC4AKFA
Data Sheet E0377E20 (Ver. 2.0)
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)
-6B
0
0
1
1
0
0
0
0
30H
12ns
-7A, -7B
0
0
1
1
1
1
0
0
3CH
15ns
29
Minimum /RAS to /CAS delay (tRCD)
-6B
0
1
0
0
1
0
0
0
48H
18ns
-7A, -7B
0
1
0
1
0
0
0
0
50H
20ns
30
Minimum active to precharge time
(tRAS)
-6B
0
0
1
0
1
0
1
0
2AH
42ns
-7A, -7B
0
0
1
0
1
1
0
1
2DH
45ns
31
Module rank density
1
0
0
0
0
0
0
0
80H
1 rank
512MB
32
Address and command setup time
before clock (tIS)
-6B
0
1
1
1
0
1
0
1
75H
0.75ns*
3
-7A, -7B
1
0
0
1
0
0
0
0
90H
0.9ns*
3
33
Address and command hold time after
clock (tIH)
-6B
0
1
1
1
0
1
0
1
75H
0.75ns*
3
-7A, -7B
1
0
0
1
0
0
0
0
90H
0.9ns*
3
34
Data input setup time before clock
(tDS)
-6B
0
1
0
0
0
1
0
1
45H
0.45ns*
3
-7A, -7B
0
1
0
1
0
0
0
0
50H
0.5ns*
3
35
Data input hold time after clock (tDH)
-6B
0
1
0
0
0
1
0
1
45H
0.45ns*
3
-7A, -7B
0
1
0
1
0
0
0
0
50H
0.5ns*
3
36 to 40
Superset information
0
0
0
0
0
0
0
0
00H
Future use
41
Active command period (tRC)
-6B
0
0
1
1
1
1
0
0
3CH
60ns*
3
-7A, -7B
0
1
0
0
0
0
0
1
41H
65ns*
3
42
Auto refresh to active/
Auto refresh command cycle (tRFC)
-6B
0
1
0
0
1
0
0
0
48H
72ns*
3
-7A, -7B
0
1
0
0
1
0
1
1
4BH
75ns*
3
43
SDRAM tCK cycle max. (tCK max.)
0
0
1
1
0
0
0
0
30H
12ns*
3
44
Dout to DQS skew
-6B
0
0
1
0
1
1
0
1
2DH
0.45ns*
3
-7A, -7B
0
0
1
1
0
0
1
0
32H
0.5ns*
3
45
Data hold skew (tQHS)
-6B
0
1
0
1
0
1
0
1
55H
0.55ns*
3
-7A, -7B
0
1
1
1
0
1
0
1
75H
0.75ns*
3
46 to 61
Superset information
0
0
0
0
0
0
0
0
00H
Future use
62
SPD revision
0
0
0
0
0
0
0
0
00H
Initial
63
Checksum for bytes 0 to 62
-6B
0
1
0
1
0
0
0
1
51H
81
-7A
0
0
0
0
1
0
0
0
08H
8
-7B
0
0
1
1
0
0
1
1
33H
51
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


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