参数资料
型号: W631GG6KB-12
厂商: Winbond Electronics
文件页数: 107/159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
10.7 DC and AC Output Measurement Levels
Table 24 – Single-ended DC and AC Output Levels
PARAMETER
DC output high measurement level (for IV curve linearity)
DC output mid measurement level (for IV curve linearity)
DC output low measurement level (for IV curve linearity)
AC output high measurement level (for output slew rate)
AC output low measurement level (for output slew rate)
SYMBOL
V OH(DC)
V OM(DC)
V OL(DC)
V OH(AC)
V OL(AC)
VALUE
0.8 x V DDQ
0.5 x V DDQ
0.2 x V DDQ
V TT + 0.1 x V DDQ
V TT - 0.1 x V DDQ
UNIT
V
V
V
V
V
NOTES
1
1
Note:
1. The swing of ± 0.1 × V DDQ is based on approximately 50% of the static single-ended output high or low swing with a
driver impedance of 34 Ω and an effective test load of 25 Ω to V TT = V DDQ /2.
Table 25 – Differential DC and AC Output Levels
PARAMETER
AC differential output high measurement level (for output
slew rate)
AC differential output low measurement level (for output
slew rate)
SYMBOL
V OH.DIFF(AC)
V OL.DIFF(AC)
VALUE
MIN. MAX.
+0.2 x V DDQ
-0.2 x V DDQ
UNIT
V
V
NOTES
1
1
Note:
1. The swing of ± 0.2 × V DDQ is based on approximately 50% of the static single-ended output high or low swing with a
driver impedance of 34 Ω and an effective test load of 25 Ω to V TT = V DDQ /2 at each of the differential outputs.
10.7.1 Output Slew Rate Definition and Requirements
The slew rate definition depends if the signal is single-ended or differential. For the relevant AC output
reference levels see above Table 24 and Table 25.
Table 26 – Output Slew Rate
PARAMETER
SYMBOL
DDR3-1333,
DDR3-1600
MIN.
MAX.
DDR3-1866
MIN.
MAX.
UNIT
NOTES
Single-ended Output Slew Rate
Differential Output Slew Rate
SRQse
SRQdiff
2.5
5
5
10
2.5
5
5* 1
12
V/nS
V/nS
1, 2, 3
2, 3
Notes:
1. In two cases, a maximum slew rate of 6 V/nS applies for a single DQ signal within a byte lane.
- Case 1 is defined for a single DQ signal within a byte lane which is switching into a certain direction (either from high
to low or low to high) while all remaining DQ signals in the same byte lane are static (i.e they stay at either high or low).
- Case 2 is defined for a single DQ signal within a byte lane which is switching into a certain direction (either from high
to low or low to high) while all remaining DQ signals in the same byte lane are switching into the opposite direction (i.e.
from low to high or high to low respectively). For the remaining DQ signal switching into the opposite direction, the
regular maximum limit of 5 V/nS applies.
2. Background for Symbol Nomenclature: SR: Slew Rate; Q: Query Output (like in DQ, which stands for Data-in, Query-
Output); se: Single-ended Signals; diff: Differential Signals.
3. For R ON = RZQ/7 settings only.
Publication Release Date: Dec. 09, 2013
Revision A05
- 107 -
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