HB52RF328GB-B Datasheet, PDF (4/16 Pages) Elpida Memory – 256MB Unbuffered SDRAM Micro DIMM

HB52RF328GB-B, HB52RD328GB-B
Serial PD Matrix*¹
Byte No. Function described
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value
0
Number of bytes used by module
manufacturer
1
0
0
0
0
0
0
0
80
1
Total SPD memory size
0 0 0 0 1 0 0 0 08
2
Memory type
0 0 0 0 0 1 0 0 04
3
Number of row addresses bits
0 0 0 0 1 1 0 1 0D
4
Number of column addresses bits 0 0 0 0 1 0 1 0 0A
5
Number of banks
0 0 0 0 0 0 0 1 01
6
Module data width
0 1 0 0 0 0 0 0 40
7
Module data width (continued)
0 0 0 0 0 0 0 0 00
8
Module interface signal levels
0 0 0 0 0 0 0 1 01
SDRAM cycle time
9
(highest /CE latency)
(-75) 7.5ns
0 1 1 1 0 1 0 1 75
(-A6, -B6) 10ns
1 0 1 0 0 0 0 0 A0
SDRAM access from Clock (highest
10
/CE latency)
0 1 0 1 0 1 0 0 54
(-75) 5.4ns
(-A6, -B6) 6ns
0 1 1 0 0 0 0 0 60
11
Module configuration type
0 0 0 0 0 0 0 0 00
12
Refresh rate/type
1 0 0 0 0 0 1 0 82
13
SDRAM width
0 0 0 0 1 0 0 0 08
14
Error checking SDRAM width
0 0 0 0 0 0 0 0 00
SDRAM device attributes:
15
minimum clock delay for back-to- 0 0 0 0 0 0 0 1 01
back random column addresses
16
SDRAM device attributes:
Burst lengths supported
0 0 0 0 1 1 1 1 0F
17
SDRAM device attributes: number of
banks on SDRAM device
0
0
0
0
0
1
0
0
04
18
SDRAM device attributes:
/CE latency
0 0 0 0 0 1 1 0 06
19
SDRAM device attributes:
/S latency
0 0 0 0 0 0 0 1 01
20
SDRAM device attributes:
/W latency
0 0 0 0 0 0 0 1 01
21
SDRAM module attributes
0 0 0 0 0 0 0 0 00
22
SDRAM device attributes: General 0 0 0 0 1 1 1 0 0E
SDRAM cycle time
23
(2nd highest /CE latency)
(-75/A6) 10ns
1 0 1 0 0 0 0 0 A0
(-B6) 15ns
1 1 1 1 0 0 0 0 F0
SDRAM access from Clock (2nd
24
highest /CE latency)
0 1 1 0 0 0 0 0 60
(-75/A6) 6ns
(-B6) 8ns
1 0 0 0 0 0 0 0 80
SDRAM cycle time
25
(3rd highest /CE latency)
Undefined
0 0 0 0 0 0 0 0 00
Comments
128
256byte
SDRAM
13
10
1
64
0 (+)
LVTTL
CL = 3
Non parity
Normal
(7.8125µs)
Self refresh
×8
—
1 CLK
1, 2, 4, 8
4
2, 3
0
0
Unbuffer
VCC ± 10%
CL = 2
Preliminary Data Sheet E0202H10 (Ver. 1.0)
4