Samsung M391B5773DH0, M391B5273DH0 specifications Min Max

Speed

DDR3-800

DDR3-1066

DDR3-1333

DDR3-1600

Units

NOTE

Parameter

Symbol

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

Data Strobe Timing

DQS,

differential READ Preamble

tRPRE

0.9

Note 19

0.9

Note 19

0.9

Note 19

0.9

Note 19

tCK

13, 19, g

DQS

DQS,

differential READ Postamble

tRPST

0.3

Note 11

0.3

Note 11

0.3

Note 11

0.3

Note 11

tCK

11, 13, b

DQS

DQS,

differential output high time

tQSH

0.38

-

0.38

-

0.4

-

0.4

-

tCK(avg)

13, g

DQS

DQS,

differential output low time

tQSL

0.38

-

0.38

-

0.4

-

0.4

-

tCK(avg)

13, g

DQS

DQS,

differential WRITE Preamble

tWPRE

0.9

-

0.9

-

0.9

-

0.9

-

tCK

DQS

DQS,

differential WRITE Postamble

tWPST

0.3

-

0.3

-

0.3

-

0.3

-

tCK

DQS

DQS,

rising edge output access time from rising

DQS

tDQSCK

-400

400

-300

300

-255

255

-225

225

ps

13,f

CK, CK

DQS,

low-impedance time (Referenced from RL-

DQS

tLZ(DQS)

-800

400

-600

300

-500

250

-450

225

ps

13,14,f

1)

DQS,

high-impedance time (Referenced from

DQS

tHZ(DQS)

-

400

-

300

-

250

-

225

ps

12,13,14

RL+BL/2)

DQS,

differential input low pulse width

tDQSL

0.45

0.55

0.45

0.55

0.45

0.55

0.45

0.55

tCK

29, 31

DQS

DQS,

differential input high pulse width

tDQSH

0.45

0.55

0.45

0.55

0.45

0.55

0.45

0.55

tCK

30, 31

DQS

DQS,

rising edge to CK,

rising edge

tDQSS

-0.25

0.25

-0.25

0.25

-0.25

0.25

-0.27

0.27

tCK(avg)

c

DQS

CK

falling edge setup time to CK,

rising edge

tDSS

0.2

-

0.2

-

0.2

-

0.18

-

tCK(avg)

c, 32

DQS,DQS

CK

falling edge hold time to CK,

rising edge

tDSH

0.2

-

0.2

-

0.2

-

0.18

-

tCK(avg)

c, 32

DQS,DQS

CK

Command and Address Timing

DLL locking time

tDLLK

512

-

512

-

512

-

512

-

nCK

internal READ Command to PRECHARGE Command

tRTP

max

-

max

-

max

-

max

-

e

delay

(4nCK,7.5ns)

(4nCK,7.5ns)

(4nCK,7.5ns)

(4nCK,7.5ns)

Delay from start of internal write transaction to internal

tWTR

max

-

max

-

max

-

max

-

e,18

read command

(4nCK,7.5ns)

(4nCK,7.5ns)

(4nCK,7.5ns)

(4nCK,7.5ns)

WRITE recovery time

tWR

15

-

15

-

15

-

15

-

ns

e

Mode Register Set command cycle time

tMRD

4

-

4

-

4

-

4

-

nCK

Mode Register Set command update delay

tMOD

max

-

max

-

max

-

max

-

(12nCK,15ns)

(12nCK,15ns)

(12nCK,15ns)

(12nCK,15ns)

CAS# to CAS# command delay

tCCD

4

-

4

-

4

-

4

-

nCK

Auto precharge write recovery + precharge time

tDAL(min)

WR + roundup (tRP / tCK(AVG))

nCK

Multi-Purpose Register Recovery Time

tMPRR

1

-

1

-

1

-

1

-

nCK

22

ACTIVE to PRECHARGE command period

tRAS

See “Speed Bins and CL, tRCD, tRP, tRC and tRAS for corresponding Bin”

ns

e

ACTIVE to ACTIVE command period for 1KB page size

tRRD

max

-

max

-

max

-

max

-

e

(4nCK,10ns)

(4nCK,7.5ns)

(4nCK,6ns)

(4nCK,6ns)

ACTIVE to ACTIVE command period for 2KB page size

tRRD

max

-

max

-

max

-

max

-

e

(4nCK,10ns)

(4nCK,10ns)

(4nCK,7.5ns)

(4nCK,7.5ns)

Four activate window for 1KB page size

tFAW

40

-

37.5

-

30

-

30

-

ns

e

Four activate window for 2KB page size

tFAW

50

-

50

-

45

-

40

-

ns

e

1.35V

tIS(base)

215

-

140

-

80

-

60

-

ps

b,16

AC160

Command and Address setup time to CK, CK refer-

enced to VIH(AC) / VIL(AC) levels

1.5V

tIS(base)

200

-

125

-

65

-

45

-

ps

b,16

AC175

1.35V

tIH(base)

285

-

210

-

150

-

130

-

ps

b,16

DC90

Command and Address hold time from CK, CK refer-

enced to VIH(AC) / VIL(AC) levels

1.5V

tIH(base)

275

200

140

120

-

ps

b,16

DC100

1.35V

tIS(base)

365

-

290

-

205

-

185

-

ps

b,16,27

AC135

Command and Address setup time to CK, CK refer-

enced to VIH(AC) / VIL(AC) levels

1.5V

tIS(base)

350

-

275

-

190

-

170

-

ps

b,16,27

AC150

Control & Address Input pulse width for each input

tIPW

900

-

780

-

620

-

560

-

ps

28

Calibration Timing

Power-up and RESET calibration time

tZQinitI

512

-

512

-

512

-

512

-

nCK

Normal operation Full calibration time

tZQoper

256

-

256

-

256

-

256

-

nCK

Normal operation short calibration time

tZQCS

64

-

64

-

64

-

64

-

nCK

23