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HB54R1G9F2 Datasheet(PDF) 6 Page - Elpida Memory

Part No. HB54R1G9F2
Description  1GB Registered DDR SDRAM DIMM
Download  16 Pages
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Manufacturer  ELPIDA [Elpida Memory]
Direct Link  http://www.elpida.com/en
Logo ELPIDA - Elpida Memory

HB54R1G9F2 Datasheet(HTML) 6 Page - Elpida Memory

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HB54R1G9F2-A75B/B75B/10B
Data Sheet E0089H40 (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
1
0
0
0
0
0
0
0
80
2 banks
512MB
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
0
0
0
0
0
1
0
0
04
4
-B75B
0
0
1
1
0
1
0
0
34
52
-10B
1
1
1
1
1
0
0
1
F9
249
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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