Timing Parameters By Speed Grade - Samsung M471B1G73AH0 Hardware User Manual

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16. Timing Parameters by Speed Grade

[ Table 17 ] Timing Parameters by Speed Bin
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
V (AC)V (AC) levels
IH IL
Data hold time to DQS, DQS referenced to
V (AC)V (AC) levels
IH IL
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
datasheet
DDR3-800
Symbol MIN MAX
tCK(DLL_OF
8 -
F)
tCK(avg)
tCK(avg)min + tCK(avg)max + tCK(avg)min +
tCK(abs)
tJIT(per)min tJIT(per)max
tCH(avg) 0.47 0.53
tCL(avg) 0.47 0.53
tJIT(per) -100 100
tJIT(per, lck) -90 90
tJIT(cc) 200
tJIT(cc, lck) 180
tERR(2per) - 147 147
tERR(3per) - 175 175
tERR(4per) - 194 194
tERR(5per) - 209 209
tERR(6per) - 222 222
tERR(7per) - 232 232
tERR(8per) - 241 241
tERR(9per) - 249 249
tERR(10per) - 257 257
tERR(11per) - 263 263
tERR(12per) - 269 269
tERR(nper)
tCH(abs) 0.43 -
tCL(abs) 0.43 -
tDQSQ - 200
tQH 0.38 -
tLZ(DQ) -800 400
tHZ(DQ) - 400
tDS(base)
-
75
AC175
tDS(base)
-
125
AC150
tDH(base)
-
150
DC100
-
tDIPW 600
tRPRE 0.9 NOTE 19
tRPST 0.3 NOTE 11
tQSH 0.38 -
tQSL 0.38 -
tWPRE 0.9 -
tWPST 0.3 -
tDQSCK -400 400
tLZ(DQS) -800 400
tHZ(DQS) - 400
tDQSL 0.45 0.55
tDQSH 0.45 0.55
tDQSS -0.25 0.25
tDSS 0.2 -
tDSH 0.2 -
DDR3-1066 DDR3-1333
MIN MAX MIN
8 - 8
See Speed Bins Table
tCK(avg)max + tCK(avg)min + tCK(avg)max +
tJIT(per)min tJIT(per)max tJIT(per)min tJIT(per)max
0.47 0.53 0.47
0.47 0.53 0.47
-90 90 -80
-80 80 -70
180 160
160 140
- 132 132 - 118
- 157 157 - 140
- 175 175 - 155
- 188 188 - 168
- 200 200 - 177
- 209 209 - 186
- 217 217 - 193
- 224 224 - 200
- 231 231 - 205
- 237 237 - 210
- 242 242 - 215
tERR(nper)min = (1 + 0.68ln(n))*tJIT(per)min
tERR(nper)max = (1 = 0.68ln(n))*tJIT(per)max
0.43 - 0.43
0.43 - 0.43
- 150 -
0.38 - 0.38
-600 300 -500
- 300 -
-
25 -
-
75 30
-
100 65
-
490 400
0.9 NOTE 19 0.9 NOTE 19
0.3 NOTE 11 0.3 NOTE 11
0.38 - 0.4
0.38 - 0.4
0.9 - 0.9
0.3 - 0.3
-300 300 -255
-600 300 -500
- 300 -
0.45 0.55 0.45
0.45 0.55 0.45
-0.25 0.25 -0.25
0.2 - 0.2
0.2 - 0.2
- 26 -
DDR3 SDRAM
DDR3-1600
Units
MAX MIN MAX
- 8 - ns
ps
tCK(avg)min + tCK(avg)max +
ps
tJIT(per)min tJIT(per)max
0.53 0.47 0.53 tCK(avg)
0.53 0.47 0.53 tCK(avg)
80 -70 70 ps
70 -60 60 ps
140 ps
120 ps
118 -103 103 ps
140 -122 122 ps
155 -136 136 ps
168 -147 147 ps
177 -155 155 ps
186 -163 163 ps
193 -169 169 ps
200 -175 175 ps
205 -180 180 ps
210 -184 184 ps
215 -188 188 ps
ps
- 0.43 - tCK(avg)
- 0.43 - tCK(avg)
125 - 100 ps
- 0.38 - tCK(avg)
250 -450 225 ps
250 - 225 ps
- - ps
- 10 ps
- 45 ps
-
360 ps
0.9 NOTE 19 tCK
0.3 NOTE 11 tCK
- 0.4 - tCK(avg)
- 0.4 - tCK(avg)
- 0.9 - tCK
- 0.3 - tCK
255 -225 225 ps
250 -450 225 ps
250 - 225 ps
0.55 0.45 0.55 tCK
0.55 0.45 0.55 tCK
0.25 -0.27 0.27 tCK(avg)
- 0.18 - tCK(avg)
- 0.18 - tCK(avg)
Rev. 1.0
NOTE
6
24
25
26
13
13, g
13,14, f
13,14, f
d, 17
d, 17
d, 17
28
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