EBS21RC2ACNA View Datasheet(PDF) - Elpida Memory, Inc
Part Name
Description
Manufacturer
EBS21RC2ACNA Datasheet PDF : 15 Pages
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EBS21RC2ACNA
Serial PD Matrix*1
Byte No. Function described
0
Number of bytes used by module
manufacturer
1
Total SPD memory size
2
Memory type
3
Number of row addresses bits
4
Number of column addresses bits
5
Number of banks
6
Module data width
7
Module data width (continued)
8
Module interface signal levels
SDRAM cycle time
9
(highest /CAS latency)
7.5ns
SDRAM access from Clock
10
(highest /CAS latency)
5.4ns
11
Module configuration type
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value
1 0 0 0 0 0 0 0 80H
0 0 0 0 1 0 0 0 08H
0 0 0 0 0 1 0 0 04H
0 0 0 0 1 1 0 1 0DH
0 0 0 0 1 1 0 0 0CH
0 0 0 0 0 0 1 0 02H
0 1 0 0 1 0 0 0 48H
0 0 0 0 0 0 0 0 00H
0 0 0 0 0 0 0 1 01H
0 1 1 1 0 1 0 1 75H
0 1 0 1 0 1 0 0 54H
0 0 0 0 0 0 1 0 02H
12
Refresh rate/type
1 0 0 0 0 0 1 0 82H
13
SDRAM width
0 0 0 0 0 0 1 0 02H
14
Error checking SDRAM width
0 0 0 0 0 0 1 0 02H
SDRAM device attributes:
15
minimum clock delay for back-to- 0 0 0 0 0 0 0 1 01H
back random column addresses
16
SDRAM device attributes:
Burst lengths supported
0 0 0 0 1 1 1 1 0FH
17
SDRAM device attributes: number of
banks on SDRAM device
0
0
0
0
0
1
0
0
04H
18
SDRAM device attributes:
/CAS latency
0 0 0 0 0 1 1 0 06H
19
SDRAM device attributes:
/CS latency
0 0 0 0 0 0 0 1 01H
20
SDRAM device attributes:
/WE latency
0 0 0 0 0 0 0 1 01H
21
SDRAM device attributes
0 0 0 1 1 1 1 1 1FH
22
SDRAM device attributes: General 0 0 0 0 1 1 1 0 0EH
SDRAM cycle time
23
(2nd highest /CAS latency)
(-7A) 7.5ns
0 1 1 1 0 1 0 1 75H
(-75) 10ns
1 0 1 0 0 0 0 0 A0H
SDRAM access from Clock
24
(2nd highest /CAS latency)
(-7A)5.4ns
0 1 0 1 0 1 0 0 54H
(-75) 6ns
0 1 1 0 0 0 0 0 60H
SDRAM cycle time
25
(3rd highest /CAS latency)
Undefined
0 0 0 0 0 0 0 0 00H
SDRAM access from Clock (3rd
26
highest /CAS latency)
0 0 0 0 0 0 0 0 00H
Undefined
Comments
128
256 byte
SDRAM
13
12
2
72 bit
0 (+)
LVTTL
CL = 3*5
ECC
Normal
(7.8125 µs)
Self refresh
128M × 2
×2
1 CLK
1, 2, 4, 8
4
2, 3
0
0
Registered
VDD ± 10%
CL = 2*5
Data Sheet E0105E50 (Ver. 5.0)
4
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