参数资料
型号: W631GG6KB-15
厂商: Winbond Electronics
文件页数: 116/159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: 667MHz
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
10.10 ODT Timing Definitions
10.10.1 Test Load for ODT Timings
Different than for timing measurements, the reference load for ODT timings is defined in Figure 98.
VDDQ
CK, CK#
DUT
DQ, DM
DQS, DQS#
VTT = VSSQ
RTT = 25 Ω
VSSQ
Timing reference point
Figure 98 – ODT Timing Reference Load
10.10.2 ODT Timing Definitions
Definitions for t AON , t AONPD , t AOF , t AOFPD and t ADC are provided in Table 36 and subsequent figures.
Measurement reference settings are provided in Table 37.
Table 36 – ODT Timing Definitions
Symbol
t AON
t AONPD
t AOF
t AOFPD
t ADC
Begin Point Definition
Rising edge of CK - CK# defined by the end
point of ODTLon
Rising edge of CK - CK# with ODT being first
registered high
Rising edge of CK - CK#defined by the end
point of ODTLoff
Rising edge of CK - CK# with ODT being first
registered low
Rising edge of CK - CK# defined by the end
point of ODTLcnw, ODTLcwn4 or ODTLcwn8
End Point Definition
Extrapolated point at V SSQ
Extrapolated point at V SSQ
End point: Extrapolated point at VRtt_Nom
End point: Extrapolated point at VRtt_Nom
End point: Extrapolated point at VRtt_WR and
VRtt_Nom respectively
Figure
Figure 99
Figure 100
Figure 101
Figure 102
Figure 103
Table 37 – Reference Settings for ODT Timing Measurements
Measured Parameter
t AON
t AONPD
t AOF
t AOFPD
t ADC
Rtt_Nom Setting
R ZQ /4
R ZQ /12
R ZQ /4
R ZQ /12
R ZQ /4
R ZQ /12
R ZQ /4
R ZQ /12
R ZQ /12
Rtt_WR Setting
NA
NA
NA
NA
NA
NA
NA
NA
RZQ/2
V SW1 [V]
0.05
0.10
0.05
0.10
0.05
0.10
0.05
0.10
0.20
V SW2 [V]
0.10
0.20
0.10
0.20
0.10
0.20
0.10
0.20
0.30
Publication Release Date: Dec. 09, 2013
Revision A05
- 116 -
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