EBD11UD8ABDA-7B 데이터 시트보기 (PDF) - Elpida Memory, Inc

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EBD11UD8ABDA-7B

1GB DDR SDRAM SO DIMM

Elpida Memory, Inc 

EBD11UD8ABDA

Byte No. Function described

Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value

Minimum row active to row active delay

28

(tRRD)

0 0 1 1 0 0 0 0 30H

-6B

-7A, -7B

0 0 1 1 1 1 0 0 3CH

29

Minimum /RAS to /CAS delay (tRCD)

-6B

0

1

0

0

1

0

0

0

48H

-7A, -7B

0 1 0 1 0 0 0 0 50H

Minimum active to precharge time

30

(tRAS)

0 0 1 0 1 0 1 0 2AH

-6B

-7A, -7B

0 0 1 0 1 1 0 1 2DH

31

Module rank density

1 0 0 0 0 0 0 0 80H

Address and command setup time

32

before clock (tIS)

0 1 1 1 0 1 0 1 75H

-6B

-7A, -7B

1 0 0 1 0 0 0 0 90H

Address and command hold time after

33

clock (tIH)

0 1 1 1 0 1 0 1 75H

-6B

-7A, -7B

1 0 0 1 0 0 0 0 90H

34

Data input setup time before clock (tDS)

-6B

0

1

0

0

0

1

0

1

45H

-7A, -7B

0 1 0 1 0 0 0 0 50H

35

Data input hold time after clock (tDH)

-6B

0

1

0

0

0

1

0

1

45H

-7A, -7B

0 1 0 1 0 0 0 0 50H

36 to 40 Superset information

0 0 0 0 0 0 0 0 00H

41

Active command period (tRC)

-6B

0 0 1 1 1 1 0 0 3CH

-7A, -7B

0 1 0 0 0 0 0 1 41H

Auto refresh to active/

42

Auto refresh command cycle (tRFC) 0 1 0 0 1 0 0 0 48H

-6B

-7A, -7B

0 1 0 0 1 0 1 1 4BH

43

SDRAM tCK cycle max. (tCK max.)

0 0 1 1 0 0 0 0 30H

44

Dout to DQS skew

-6B

0 0 1 0 1 1 0 1 2DH

-7A, -7B

0 0 1 1 0 0 1 0 32H

45

Data hold skew (tQHS)

-6B

0 1 0 1 0 1 0 1 55H

-7A, -7B

0 1 1 1 0 1 0 1 75H

46 to 61 Superset information

0 0 0 0 0 0 0 0 00H

62

SPD Revision

0 0 0 0 0 0 0 0 00H

63

Checksum for bytes 0 to 62

-6B

0 1 0 0 0 0 1 0 42H

-7A

1 1 1 1 1 0 0 1 F9H

-7B

0 0 1 0 0 1 0 0 24H

64

Manufacturer’s JEDEC ID code

0 1 1 1 1 1 1 1 7FH

65

Manufacturer’s JEDEC ID code

0 1 1 1 1 1 1 1 7FH

66

Manufacturer’s JEDEC ID code

1 1 1 1 1 1 1 0 FEH

67 to 71 Manufacturing location

0 0 0 0 0 0 0 0 00H

Comments

12ns

15ns

18ns

20ns

42ns

45ns

512M bytes

0.75ns*1

0.9ns*1

0.75ns*1

0.9ns*1

0.45ns*1

0.5ns*1

0.45ns*1

0.5ns*1

Future use

60ns*1

65ns*1

72ns*1

75ns*1

12ns*1

450ps*1

500ps*1

550ps*1

750ps*1

Future use

66

249

36

Elpida Memory

Data Sheet E0287E70 (Ver. 7.0)

6

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