收藏本站
W9425G6JH
11. SYSTEM CHARACTERISTICS FOR DDR SDRAM
The following specification parameters are required in systems using DDR500, DDR400 & DDR333
devices to ensure proper system performance. These characteristics are for system simulation
purposes and are guaranteed by design.
11.1 Table 1: Input Slew Rate for DQ, DQS, and DM
AC CHARACTERISTICS
PARAMETER
SYM.
DDR500
MIN. MAX.
DDR400
MIN. MAX.
UNIT
NOTES
DQ/DM/DQS input slew rate measured between
VIH(DC), VIL(DC) and VIL(DC), VIH(DC)
DCSLEW
0.5
4.0
0.5
4.0
V/nS
a, m
11.2 Table 2: Input Setup & Hold Time Derating for Slew Rate
INPUT SLEW RATE
0.5 V/nS
0.4 V/nS
0.3 V/nS
Δ t IS
0
+50
+100
Δ t IH
0
0
0
UNIT
pS
pS
pS
NOTES
i
i
i
11.3 Table 3: Input/Output Setup & Hold Time Derating for Slew Rate
INPUT SLEW RATE
0.5 V/nS
0.4 V/nS
0.3 V/nS
Δ t DS
0
+75
+150
Δ t DH
0
0
0
UNIT
pS
pS
pS
NOTES
k
k
k
11.4 Table 4: Input/Output Setup & Hold Derating for Rise/Fall Delta Slew Rate
INPUT SLEW RATE
±0.0 nS/V
±0.25 nS/V
±0.5 nS/V
Δ t DS
0
+50
+100
Δ t DH
0
0
0
UNIT
pS
pS
pS
NOTES
j
j
j
11.5 Table 5: Output Sle w Rate Characteristics (X16 Devices only)
SLEW RATE
CHARACTERISTIC
Pullup Slew Rate
Pulldown Slew Rate
TYPICAL
RANGE (V/NS)
1.2 ~ 2.5
1.2 ~ 2.5
MINIMUM
(V/NS)
0.7
0.7
MAXIMUM
(V/NS)
5.0
5.0
NOTES
a, c, d, f, g, h
b, c, d, f, g, h
Publication Release Date: Aug. 27, 2013
- 29 -
Revision A03
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
W947D2HBJX5E IC LPDDR SDRAM 128MBIT 90VFBGA
W948D2FBJX5E IC LPDDR SDRAM 256MBIT 90VFBGA
W949D2CBJX5E IC LPDDR SDRAM 512MBIT 90VFBGA
W971GG6JB25I IC DDR2 SDRAM 1GBIT 84WBGA
W971GG8JB-25 IC DDR2 SDRAM 1GBIT 60WBGA
W9725G6IB-25 IC DDR2-800 SDRAM 256MB 84-WBGA
W9725G6JB25I IC DDR2 SDRAM 256MBIT 84WBGA
W9725G6KB-25I IC DDR2 SDRAM 256MBIT 84WBGA
相关代理商/技术参数
W9425G6JH5ITR 制造商:Winbond Electronics Corp 功能描述:256M DDR SDRAM X16, 200MHZ, IN
W9425G6JH5TR 制造商:Winbond Electronics Corp 功能描述:256M DDR SDRAM X16, 200MHZ, 65
W9425G6JH-5TR 制造商:Winbond Electronics Corp 功能描述:256M DDR SDRAM X16, 200MHZ, 65
W9425G8EH 制造商:WINBOND 制造商全称:Winbond 功能描述:8M × 4 BANKS × 8 BITS DDR SDRAM
W946432AD 制造商:WINBOND 制造商全称:Winbond 功能描述:512K X 4 BANKS X 32 BITS DDR SDRAM
W9464G6IB 制造商:WINBOND 制造商全称:Winbond 功能描述:1M × 4 BANKS × 16 BITS DDR SDRAM
W9464G6IH 制造商:WINBOND 制造商全称:Winbond 功能描述:1M ?? 4 BANKS ?? 16 BITS DDR SDRAM
W9464G6JH 制造商:WINBOND 制造商全称:Winbond 功能描述:1M ? 4 BANKS ? 16 BITS DDR SDRAM