EBD25EC8AAFA-6B

Preliminary Data Sheet E0391E10 (Ver. 1.0)

6

Byte No.

Function described

Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value

Comments

35

Data input hold time after clock (tDH)

0

1

0

0

0

1

0

1

45H

0.45ns

*1

36 to 40

Superset information

0

0

0

0

0

0

0

0

00H

Future use

41

Active command period (tRC)

0

0

1

1

1

1

0

0

3CH

60ns

*1

42

Auto refresh to active/

Auto refresh command cycle (tRFC)

0

1

0

0

1

0

0

0

48H

72ns

*1

43

SDRAM tCK cycle max. (tCK max.)

0

0

1

1

1

1

0

0

3CH

15ns

*1

44

Dout to DQS skew

0

0

1

0

1

1

0

1

2DH

0.45ns

*1

45

Data hold skew (tQHS)

0

1

0

1

0

1

0

1

55H

0.55ns

*1

46 to 61

Superset information

0

0

0

0

0

0

0

0

00H

Future use

62

SPD Revision

0

0

0

0

0

0

0

0

00H

63

Checksum for bytes 0 to 62

0

0

1

1

0

1

0

0

34H

64 to 65

Manufacturer’s JEDEC ID code

0

1

1

1

1

1

1

1

7FH

Continuation

code

66

Manufacturer’s JEDEC ID code

1

1

1

1

1

1

1

0

FEH

Elpida Memory

67 to 71

Manufacturer’s JEDEC ID code

0

0

0

0

0

0

0

0

00H

72

Manufacturing location

×

×

×

×

×

×

×

×

××

(ASCII-8bit

code)

73

Module part number

0

1

0

0

0

1

0

1

45H

E

74

Module part number

0

1

0

0

0

0

1

0

42H

B

75

Module part number

0

1

0

0

0

1

0

0

44H

D

76

Module part number

0

0

1

1

0

0

1

0

32H

2

77

Module part number

0

0

1

1

0

1

0

1

35H

5

78

Module part number

0

1

0

0

0

1

0

1

45H

E

79

Module part number

0

1

0

0

0

0

1

1

43H

C

80

Module part number

0

0

1

1

1

0

0

0

38H

8

81

Module part number

0

1

0

0

0

0

0

1

41H

A

82

Module part number

0

1

0

0

0

0

0

1

41H

A

83

Module part number

0

1

0

0

0

1

1

0

46H

F

84

Module part number

0

1

0

0

0

0

0

1

41H

A

85

Module part number

0

0

1

0

1

1

0

1

2DH

—

86

Module part number

0

0

1

1

0

1

1

0

36H

6

87

Module part number

0

1

0

0

0

0

1

0

42H

B

88 to 90

Module part number

0

0

1

0

0

0

0

0

20H

(Space)

91

Revision code

0

0

1

1

0

0

0

0

30H

Initial

92

Revision code

0

0

1

0

0

0

0

0

20H

(Space)

93

Manufacturing date

×

×

×

×

×

×

×

×

××

Year code

(HEX)

94

Manufacturing date

×

×

×

×

×

×

×

×

××

Week code

(HEX)

95 to 98

Module serial number

99 to 127 Manufacture specific data

Note: 1.These specifications are defined based on component specification, not module.