TM8LR64JFN 8 388 608 BY 64BIT

TM16LR64JFN 16 777 216 BY 64BIT

SYNCHRONOUS DYNAMIC RAM MODULES

SMMS710 − MAY 1998

14

POST OFFICE BOX 1443

serial presence detect (continued)

Table 2. Serial Presence-Detect Data for the TM16LR64JFN (Continued)

BYTE

DESCRIPTION OF FUNCTION

TM16LR64JFN-8

TM16LR64JFN-8A

BYTE

NO.

DESCRIPTION OF FUNCTION

ITEM

DATA

ITEM

DATA

31

Density of each bank on module

64M Bytes

10h

64M Bytes

10h

32

Command and address signal input setup time

tIS = 2 ns

20h

tIS = 2 ns

20h

33

Command and address signal input hold time

tIH = 1 ns

10h

tIH = 1 ns

10h

34

Data signal input setup time

tIS = 2 ns

20h

tIS = 2 ns

20h

35

Data signal input hold time

tIH = 1 ns

10h

tIH = 1 ns

10h

36−61

Superset features (may be used in the future)

62

SPD revision

Rev. 1.2

12h

Rev. 1.2

12h

63

Checksum for byte 0 − 62

96

60h

197

C5h

64 − 71

Manufacturer’s JEDEC ID code per JEP − 106E

97h

9700...

00h

97h

9700...

00h

72

Manufacturing location†

TBD

TBD

73

Manufacturer’s part number

T

54h

T

54h

74

Manufacturer’s part number

M

4Dh

M

4Dh

75

Manufacturer’s part number

1

31h

1

31h

76

Manufacturer’s part number

6

36h

6

36h

77

Manufacturer’s part number

L

4Ch

L

4Ch

78

Manufacturer’s part number

R

52h

R

52h

79

Manufacturer’s part number

6

36h

6

36h

80

Manufacturer’s part number

4

34h

4

34h

81

Manufacturer’s part number

J

4Ah

J

4Ah

82

Manufacturer’s part number

F

46h

F

46h

83

Manufacturer’s part number

N

4Eh

N

4Eh

84

Manufacturer’s part number

—

2Dh

—

2Dh

85

Manufacturer’s part number

8

38h

8

38h

86

Manufacturer’s part number

SPACE

20h

A

41h

87 − 90

Manufacturer’s part number

SPACE

20h

SPACE

20h

73 − 90

Manufacturer’s part number†

TBD

TBD

91

Die revision code†

TBD

TBD

92

PCB revision code†

TBD

TBD

93 − 94

Manufacturing date†

TBD

TBD

95 − 98

Assembly serial number†

TBD

TBD

99 − 125

Manufacturer-specific data†

TBD

TBD

126

Clock frequency

100 MHz

64h

100 MHz

64h

127

SDRAM component and clock interconnection details

247

F7h

247

F7h

128−166

System-integrator-specific data‡

TBD

TBD

167−255

Open

† TBD indicates values are determined at manufacturing time and are module-dependent.

‡ These TBD values are determined and programmed by the customer (optional).