MSC23S4641E datasheet(4/11 Pages) OKI

部件名	MSC23S4641E

功能描述	4,194,304 Word x 64 Bit SYNCHRONOUS DYNAMIC RAM MODULE (2BANK):

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制造商	OKI [OKI electronic componets]

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MSC23S4641E-8BS16 (98.06.22)

SERIAL PRESENCE DETECT

Byte

No.

SPD

Hex Value

Remark

Notes

0

80

Defines the number of bytes written into

SPD memory

128 byte

1

08

Total number of bytes of SPD memory

256 byte

2

04

Fundamental memory type

SDRAM

3

0B

Number of rows

11 rows

4

09

Number of columns

9 columns

5

02

Number of module banks

2 bank

6

40

Data width of this assembly

64 bits

7

00

... Data width continuation

0

8

01

Voltage interface level

LVTTL

9

80

Cycle time (CL=3)

CL=3

tCC=8ns

10

60

Access time from CLK (CL=3)

CL=3

tAC3=6ns

11

00

DIMM configuration type

Non Parity

12

80

Refresh rate / type

Normal/ Self/

13

08

Primary SDRAM width

x8

14

00

Error checking SDRAM width

15

01

Minimum CLK delay

tCCD: 1 CLK

16

8F

Burst lengths supported

1,2,4,8,F

17

02

Number of banks on each SDRAM

2 banks

18

06

/CAS latency

2,3

19

01

/CS latency

0

20

01

/WE latency

0

21

00

SDRAM module attributes

22

06

SDRAM device attributes : General

23

C0

Cycle time (CL=2)

CL=2

tCC2=12ns

24

A0

Access time from CLK (CL=2)

CL=2

tAC2=10ns

25

00

Cycle time (CL=1)

Not support

26

00

Access time from CLK (CL=1)

Not support

27

14

Minimum ROW pulse width

tRP=20ns

28

14

/RAS to /RAS bank delay

tRRD=20ns

29

14

/RAS to /CAS delay

tRCD=20ns

30

Minimum /RAS precharge time

tRAS=48ns

31

04

Density of each bank on module

16MB

32

20

Command and address signal input setup time

2ns

33

10

Command and address signal input hold time

1ns

34

20

Data signal input setup time

2ns

35

10

Data signal input hold time

1ns

36-61

00-00

R.F.U

62

12

SPD data revision code

1.2

63

2D

Checksum for byte 0-62

64-71

41,45,20,20,20,20,20,20

Manufacturer’s JEDEC ID code

72

01/06

Manufacturing location

73-90

43,32,33,53,34,36,34,31,45,

2D,38,42,53,31,36,20,20,20

Manufacturer’s part number

C23S4641E-8BS16

91,92

20,20

Revision code

93-125

00-00

R.F.U

126

64

Intel specification frequency

100MHz

127

F5

Intel specification /CAS latency

CLK0-3,CL=3

128-255

FF-FF

Unused storage locations

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