参数资料
型号: W631GG6KB-12
厂商: Winbond Electronics
文件页数: 104/159页
文件大小: 0K
描述: IC DDR3 SDRAM 1GBIT 96WBGA
标准包装: 200
格式 - 存储器: RAM
存储器类型: DDR3 SDRAM
存储容量: 1G(64M x 16)
速度: 800MHz
接口: 并联
电源电压: 1.425 V ~ 1.575 V
工作温度: 0°C ~ 85°C
封装/外壳: 96-TFBGA
供应商设备封装: 96-WBGA(9x13)
包装: 托盘
W631GG6KB
Table 20 – Allowed time before ringback (t DVAC ) for CK - CK# and DQS - DQS#
DDR3-1333/1600
DDR3-1866
Slew Rate
[V/nS]
t DVAC [pS]
@ V IH/LDIFF(AC) =
350mV
t DVAC [pS]
@ V IH/LDIFF(AC) =
300mV
t DVAC [pS]
@ V IH/LDIFF(AC) =
300mV
t DVAC [pS]
@ V IH/LDIFF(AC) =
(CK - CK#) only
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
> 4.0
4.0
3.0
2.0
1.8
1.6
1.4
1.2
1.0
< 1.0
75
57
50
38
34
29
Note
Note
Note
Note
-
-
-
-
-
-
-
-
-
-
175
170
167
119
102
81
54
19
Note
Note
-
-
-
-
-
-
-
-
-
134
134
112
67
52
33
9
Note
Note
Note
-
-
-
-
-
-
-
-
-
-
139
139
118
77
63
45
23
Note
Note
Note
-
-
-
-
-
-
-
-
-
-
Note:
Rising input differential signal shall become equal to or greater than V IHDIFF(AC) level and Falling input differential signal shall
become equal to or less than V ILDIFF(AC) level.
10.6.4 Single-ended requirements for differential signals
Each individual component of a differential signal (CK, DQSL, DQSU, CK#, DQSL#, DQSU#) has also
to comply with certain requirements for single-ended signals.
CK and CK# have to approximately reach V SEH min / V SEL max (approximately equal to the AC-levels
(V IH.CA(AC) / V IL.CA(AC) ) for ADD/CMD signals) in every half-cycle.
DQSL, DQSU, DQSL#, DQSU# have to reach V SEH min / V SEL max (approximately the AC-levels
(V IH.DQ(AC) / V IL.DQ(AC) ) for DQ signals) in every half-cycle preceding and following a valid transition.
Note that the applicable ac- levels for ADD/CMD and DQ‘s might be differ ent per speed-bin etc. E.g., if
V IH.CA(AC150) /V IL.CA(AC150) is used for ADD/CMD signals, then these AC-levels apply also for the
single-ended signals CK and CK#.
Table 21 – Single-ended levels for CK, DQSL, DQSU, CK#, DQSL# o r DQSU#
PARAMETER
SYM.
DDR3-1333, DDR3-1600 & DDR3-1866
MIN. MAX.
UNIT
NOTES
Single-ended high level for strobes
Single-ended high level for CK, CK#
Single-ended low level for strobes
Single-ended low level for CK, CK#
V SEH
V SEL
(V DD /2) + 0.175
(V DD /2) + 0.175
Note 3
Note 3
Note 3
Note 3
(V DD /2) - 0.175
(V DD /2) - 0.175
V
V
V
V
1, 2
1, 2
1, 2
1, 2
Notes:
1. For CK, CK# use V IH.CA(AC) / V IL..CA(AC) of ADD/CMD; for strobes (DQSL, DQSL#, DQSU, DQSU#) use V IH.DQ(AC) /
V IL.DQ(AC) of DQs.
2. V IH.DQ(AC) / V IL.DQ(AC) for DQs is based on V REFDQ ; V IH.CA(AC) / V IL.CA(AC) for ADD/CMD is based on V REFCA ; if a
reduced AC-high or AC-low level is used for a signal group, then the reduced level applies also here.
3. These values are not defined; however, the single-ended signals CK, CK#, DQSL, DQSL#, DQSU, DQSU# need to be within
the respective limits (V IH(DC) max, V IL(DC)min ) for single-ended signals as well as the limitations for overshoot and
undershoot. Refer to section 10.12 “ Overshoot and Undershoot Specifications ” on page 121.
Publication Release Date: Dec. 09, 2013
Revision A05
- 104 -
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