K4B1G0446G Datasheet, PDF (44/64 Pages) Samsung semiconductor – 1Gb G-die DDR3 SDRAM

K4B1G0446G
K4B1G0846G
datasheet
Rev. 1.01
DDR3 SDRAM
14. Timing Parameters by Speed Grade
[ Table 48 ] Timing Parameters by Speed Bins for DDR3-800 to DDR3-1333
Speed
Parameter
Clock Timing
Minimum Clock Cycle Time (DLL off mode)
Symbol
DDR3-800
MIN
MAX
tCK(DLL_OFF)
8
-
DDR3-1066
MIN
MAX
8
-
DDR3-1333
MIN
MAX
8
-
Units
NOTE
ns
6
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 V_IH(AC)V_IL(AC) levels
Data hold time to DQS, DQS referenced
to V_IH(AC)V_IL(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
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)
-100
100
-90
90
-80
80
ps
tJIT(per, lck)
-90
90
-80
80
-70
70
ps
tJIT(cc)
200
180
160
ps
tJIT(cc, lck)
180
160
140
ps
tERR(2per)
- 147
147
- 132
132
- 118
118
ps
tERR(3per)
- 175
175
- 157
157
- 140
140
ps
tERR(4per)
- 194
194
- 175
175
- 155
155
ps
tERR(5per)
- 209
209
- 188
188
- 168
168
ps
tERR(6per)
- 222
222
- 200
200
- 177
177
ps
tERR(7per)
- 232
232
- 209
209
- 186
186
ps
tERR(8per)
- 241
241
- 217
217
- 193
193
ps
tERR(9per)
- 249
249
- 224
224
- 200
200
ps
tERR(10per)
- 257
257
- 231
231
- 205
205
ps
tERR(11per)
- 263
263
- 237
237
- 210
210
ps
tERR(12per)
- 269
269
- 242
242
- 215
215
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
-
200
-
150
-
125
ps
13
tQH
0.38
-
0.38
-
0.38
-
tCK(avg) 13, g
tLZ(DQ)
-800
400
-600
300
-500
250
ps
13,14, f
tHZ(DQ)
-
400
-
300
-
250
ps
13,14, f
tDS(base)
AC175
75
-
25
-
-
-
ps
d, 17
tDS(base)
AC150
125
-
75
-
30
-
ps
d, 17
tDH(base)
DC100
150
-
100
-
65
-
ps
d, 17
tDIPW
600
-
490
-
400
-
ps
28
tRPRE
tRPST
tQSH
tQSL
tWPRE
tWPST
tDQSCK
tLZ(DQS)
tHZ(DQS)
tDQSL
tDQSH
tDQSS
tDSS
tDSH
0.9
0.3
0.38
0.38
0.9
0.3
-400
-800
-
0.45
0.45
-0.25
0.2
0.2
NOTE 19
NOTE 11
-
-
-
-
400
400
400
0.55
0.55
0.25
-
-
0.9
0.3
0.38
0.38
0.9
0.3
-300
-600
-
0.45
0.45
-0.25
0.2
0.2
NOTE 19
NOTE 11
-
-
-
-
300
300
300
0.55
0.55
0.25
-
-
0.9
0.3
0.4
0.4
0.9
0.3
-255
-500
-
0.45
0.45
-0.25
0.2
0.2
NOTE 19
NOTE 11
-
-
-
-
255
250
250
0.55
0.55
0.25
-
-
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
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