Hynix HMT31GR7CFR4A-PBT8 Datasheet download pdf (Page 49)

Rev. 1.1 / May. 2013 49

DDR3L-1333 Speed Bins

For specific Notes See "Speed Bin Table Notes" on page 51.

Speed Bin DDR3L-1333H

Unit Note

CL - nRCD - nRP 9-9-9

Parameter Symbol min max

Internal read

command to first data

13.5

(13.125)

5,10

20 ns

ACT to internal read or

write delay time

RCD

13.5

(13.125)

5,10

—ns

PRE command period

13.5

(13.125)

5,10

—ns

ACT to ACT or REF

command period

49.5

(49.125)

5,10

—ns

ACT to PRE command

period

RAS

36 9 * tREFI ns

CL = 6

CWL = 5

CK(AVG)

2.5 3.3 ns 1,2,3,7

CWL = 6

CK(AVG)

Reserved ns 1,2,3,4,7

CWL = 7

CK(AVG)

Reserved ns 4

CL = 7

CWL = 5

CK(AVG)

Reserved ns 4

CWL = 6

CK(AVG)

1.875 < 2.5

ns 1,2,3,4,7

(Optional)

5,10

CWL = 7

CK(AVG)

Reserved ns 1,2,3,4

CL = 8

CWL = 5

CK(AVG)

Reserved ns 4

CWL = 6

CK(AVG)

1.875 < 2.5 ns 1,2,3,7

CWL = 7

CK(AVG)

Reserved ns 1,2,3,4

CL = 9

CWL = 5, 6

CK(AVG)

Reserved ns 4

CWL = 7

CK(AVG)

1.5 <1.875 ns 1,2,3,4

CL = 10

CWL = 5, 6

CK(AVG)

Reserved ns 4

CWL = 7

CK(AVG)

1.5 <1.875 ns 1,2,3

(Optional) ns 5

Supported CL Settings 6, 7, 8, 9, 10

Supported CWL Settings 5, 6, 7

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 75 76

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Hynix HMT31GR7CFR4A-PBT8 Datasheet Page 49

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