EBS51RC4ACFC datasheet(5/15 Pages) ELPIDA

Part #	EBS51RC4ACFC

Description	512MB Registered SDRAM DIMM

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Manufacturer	ELPIDA [Elpida Memory]

Direct Link	http://www.elpida.com/en

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5 / 15 page

EBS51RC4ACFC

Data Sheet E0108E30 (Ver. 3.0)

5

Byte No.

Function described

Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value

Comments

27

Minimum row precharge time

(-7A)

0

1

0FH

15ns

(-75)

0

1

0

1

0

14H

20ns

28

Row active to row active min

0

1

0FH

15ns

29

/RAS to /CAS delay min

(-7A)

0

1

0FH

15ns

(-75)

0

1

0

1

0

14H

20ns

30

Minimum /RAS pulse width

0

1

0

1

0

1

2DH

45ns

31

Density of each bank on module

1

0

80H

1 bank

512M byte

32

Address and command signal input

setup time

0

1

0

1

0

1

15H

1.5ns*

5

33

Address and command signal input

hold time

0

1

0

08H

0.8ns*

5

34

Data signal input setup time

0

1

0

1

0

1

15H

1.5ns*

5

35

Data signal input hold time

0

1

0

08H

0.8ns*

5

36 to 40

Superset information

0

00H

Future use

41

Minimum bank Cycle

(-7A)

0

1

0

3CH

60ns

(-75)

0

1

0

1

43H

67.5ns

42 to 61

Superset information

0

00H

Future use

62

SPD data revision code

0

1

0

1

0

12H

Rev. 1.2

63

Checksum for bytes 0 to 62

(-7A)

1

0

1

0

1

B7H

183

(-75)

1

FFH

255

64 to 65

Manufacturer’s JEDEC ID code

0

1

7FH

Continuation code

66

Manufacturer’s JEDEC ID code

1

0

FEH

Elpida Memory

67 to 71

Manufacturer’s JEDEC ID code

0

00H

72

Manufacturing location

×

××

*

2 (ASCII-8bit code)

73

Manufacturer’s part number

0

1

0

1

0

1

45H

E

74

Manufacturer’s part number

0

1

0

1

0

42H

B

75

Manufacturer’s part number

0

1

0

1

0

1

53H

S

76

Manufacturer’s part number

0

1

0

1

0

1

35H

5

77

Manufacturer’s part number

0

1

0

1

31H

1

78

Manufacturer’s part number

0

1

0

1

0

1

0

52H

R

79

Manufacturer’s part number

0

1

0

1

43H

C

80

Manufacturer’s part number

0

1

0

1

0

34H

4

81

Manufacturer’s part number

0

1

0

1

41H

A

82

Manufacturer’s part number

0

1

0

1

43H

C

83

Manufacturer’s part number

0

1

0

1

0

46H

F

84

Manufacturer’s part number

0

1

0

1

43H

C

85

Manufacturer’s part number

0

1

0

1

0

1

2DH

—

86

Manufacturer’s part number

0

1

0

1

37H

7

87

Manufacturer’s part number

(-7A)

0

1

0

1

41H

A

(-75)

0

1

0

1

0

1

35H

5

88

Manufacturer’s part number

0

1

0

20H

(Space)

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