MK32VT864 datasheet(4/11 Pages) OKI

部件名	MK32VT864

功能描述	8,388,608 Word x 64 Bit SYNCHRONOUS DYNAMIC RAM MODULE (2BANK)

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制造商	OKI [OKI electronic componets]

网页	http://www.oki.com

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4 / 11 page

MK32VT864-10YE (98.07.24)

Page 4/11

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

0C

Number of rows

12 rows

4

08

Number of columns

8 columns

5

02

Number of module banks

2 bank

6

40

Data width of this assembly

64 bits

7

00

... Data width continuation

0 bits

8

01

Voltage interface level

LVTTL

9

A0

Cycle time (CL=3)

CL=3

tCC=10ns

10

90

Access time from CLK (CL=3)

CL=3

tAC3=9ns

11

00

DIMM configuration type

Non Parity

12

80

Refresh rate / type

Normal / Self

13

10

Primary SDRAM width

x16

14

00

Error checking SDRAM width

15

01

Minimum CLK delay

tCCD: 1 CLK

16

0E

Burst lengths supported

2, 4, 8

17

04

Number of banks on each SDRAM

4 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

F0

Cycle time (CL=2)

CL=2

tCC2=15ns

24

90

Access time from CLK (CL=2)

CL=2

tAC2=9ns

25

00

Cycle time (CL=1)

Not support

26

00

Access time from CLK (CL=1)

Not support

27

1E

Minimum ROW pulse width

tRP=30ns

28

14

/RAS to /RAS bank delay

tRRD=20ns

29

1E

/RAS to /CAS delay

tRCD=30ns

30

3C

Minimum /RAS precharge time

tRAS=60ns

31

10

Density of each bank on module

64MB

32

30

Command and Address Signal Input Setup Time

3ns

33

10

Command and Address Signal Input Hold Time

1ns

34

30

Data Signal Input Setup Time

3ns

35

10

Data Signal Input Hold Time

1ns

36-61

00-00

R.F.U

62

02

SPD data revision code

0.2

63

62

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

4D,4B,33,32,56,54,38,36,34,

2D,31,30,59,45,20,20,20,20

Manufacturer’s part number

MK32VT864-10YE

91, 92

20, 20

Revision code

93-125

XX-XX

R.F.U

126

66

Intel specification frequency

66MHz

127

06

Intel specification /CAS latency

CL=2, 3

128-255

FF-FF

Unused storage locations

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