K4B2G1646C-HCF8 View Datasheet(PDF) - Samsung

Part Name

Description

MFG CO.

K4B2G1646C-HCF8

2Gb C-die DDR3 SDRAM

Samsung 

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K4B2G1646C

datasheet

Rev. 1.11

DDR3 SDRAM

[ Table 50 ] Timing Parameters by Speed Bins for DDR3-1600 to DDR3-2133

Speed

Parameter

Clock Timing

Minimum Clock Cycle Time (DLL off mode)

Average Clock Period

Clock Period

Average high pulse width

Average low pulse width

Clock Period Jitter

Clock Period Jitter during DLL locking period

Cycle to Cycle Period Jitter

Cycle to Cycle Period Jitter during DLL locking period

Cumulative error across 2 cycles

Cumulative error across 3 cycles

Cumulative error across 4 cycles

Cumulative error across 5 cycles

Cumulative error across 6 cycles

Cumulative error across 7 cycles

Cumulative error across 8 cycles

Cumulative error across 9 cycles

Cumulative error across 10 cycles

Cumulative error across 11 cycles

Cumulative error across 12 cycles

Cumulative error across n = 13, 14 ... 49, 50 cycles

Absolute clock HIGH pulse width

Absolute clock Low pulse width

Data Timing

DQS,DQS to DQ skew, per group, per access

DQ output hold time from DQS, DQS

DQ low-impedance time from CK, CK

DQ high-impedance time from CK, CK

Data setup time to DQS, DQS referenced

to VIH(AC)VIL(AC) levels

Data hold time to DQS, DQS referenced

to VIH(AC)VIL(AC) levels

DQ and DM Input pulse width for each input

Data Strobe Timing

DQS, DQS differential READ Preamble

DQS, DQS differential READ Postamble

DQS, DQS differential output high time

DQS, DQS differential output low time

DQS, DQS differential WRITE Preamble

DQS, DQS differential WRITE Postamble

DQS, DQS rising edge output access time from rising CK, CK

DQS, DQS low-impedance time (Referenced from RL-1)

DQS, DQS high-impedance time (Referenced from RL+BL/2)

DQS, DQS differential input low pulse width

DQS, DQS differential input high pulse width

DQS, DQS rising edge to CK, CK rising edge

DQS,DQS falling edge setup time to CK, CK rising edge

DQS,DQS falling edge hold time to CK, CK rising edge

Symbol

DDR3-1600

MIN

MAX

DDR3-1866

MIN

MAX

DDR3-2133

MIN

MAX

Units

NOTE

tCK(DLL_OFF)

8

-

8

-

8

-

ns

6

tCK(avg)

See Speed Bins Table

ps

tCK(abs)

tCK(avg)min + tCK(avg)max + tCK(avg)min + tCK(avg)max + tCK(avg)min + tCK(avg)max +

tJIT(per)min

tJIT(per)max

tJIT(per)min

tJIT(per)max

tJIT(per)min

tJIT(per)max

ps

tCH(avg)

0.47

0.53

0.47

0.53

0.47

0.53

tCK(avg)

tCL(avg)

0.47

0.53

0.47

0.53

0.47

0.53

tCK(avg)

tJIT(per)

-70

70

-60

60

-50

50

ps

tJIT(per, lck)

-60

60

-50

50

-40

40

ps

tJIT(cc)

140

120

100

ps

tJIT(cc, lck)

120

100

80

ps

tERR(2per)

-103

103

-88

88

-74

74

ps

tERR(3per)

-122

122

-105

105

-87

87

ps

tERR(4per)

-136

136

-117

117

-97

97

ps

tERR(5per)

-147

147

-126

126

-105

105

ps

tERR(6per)

-155

155

-133

133

-111

111

ps

tERR(7per)

-163

163

-139

139

-116

116

ps

tERR(8per)

-169

169

-145

145

-121

121

ps

tERR(9per)

-175

175

-150

150

-125

125

ps

tERR(10per)

-180

180

-154

154

-128

128

ps

tERR(11per)

-184

184

-158

158

-132

132

ps

tERR(12per)

-188

188

-161

161

-134

134

ps

tERR(nper)

tERR(nper)min = (1 + 0.68ln(n))*tJIT(per)min

tERR(nper)max = (1 = 0.68ln(n))*tJIT(per)max

ps

24

tCH(abs)

0.43

-

0.43

-

0.43

-

tCK(avg)

25

tCL(abs)

0.43

-

0.43

-

0.43

-

tCK(avg)

26

tDQSQ

-

100

-

85

-

75

ps

13

tQH

0.38

-

0.38

-

0.38

-

tCK(avg) 13, g

tLZ(DQ)

-450

225

-390

195

-360

180

ps

13,14, f

tHZ(DQ)

-

225

-

195

-

180

ps

13,14, f

tDS(base)

AC175

-

-

-

-

-

-

ps

d, 17

tDS(base)

AC150

10

-

-

-

-

-

ps

d, 17

tDS(base)

AC135

-

-

0

-

-15

-

ps

d, 17

tDH(base)

DC100

45

-

20

-

5

-

ps

d, 17

tDIPW

360

-

320

-

280

-

ps

28

tRPRE

tRPST

tQSH

tQSL

tWPRE

tWPST

tDQSCK

tLZ(DQS)

tHZ(DQS)

tDQSL

tDQSH

tDQSS

tDSS

tDSH

0.9

0.3

0.4

0.4

0.9

0.3

-225

-450

-

0.45

0.45

-0.27

0.18

0.18

NOTE 19

NOTE 11

-

-

-

-

225

225

225

0.55

0.55

0.27

-

-

0.9

0.3

0.4

0.4

0.9

0.3

-195

-390

-

0.45

0.45

-0.27

0.18

0.18

NOTE 19

NOTE 11

-

-

-

-

195

195

195

0.55

0.55

0.27

-

-

0.9

0.3

0.4

0.4

0.9

0.3

-180

-360

-

0.45

0.45

-0.27

0.18

0.18

NOTE 19

NOTE 11

-

-

-

-

180

180

180

0.55

0.55

0.27

-

-

tCK

tCK

tCK(avg)

tCK(avg)

tCK

tCK

ps

ps

ps

tCK

tCK

tCK(avg)

tCK(avg)

tCK(avg)

13, 19, g

11, 13, b

13, g

13, g

13,f

13,14,f

12,13,14

29, 31

30, 31

c

c, 32

c, 32

- 47 -

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