參數(shù)資料
型號(hào)： K4H640438A-TLA2
廠(chǎng)商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： Euronord Enclosure; NEMA Type:1, 4, 4X, 12, 13; Enclosure Material:Polycarbonate; External Height:4.7"; External Width:3.1"; External Depth:2.2"; Enclosure Color:Gray
中文描述： 128MB DDR SDRAM的
文件頁(yè)數(shù)： 52/53頁(yè)
文件大?。?/td> 669K
代理商： K4H640438A-TLA2
- 52 -
REV. 1.0 November. 2. 2000
128Mb DDR SDRAM
QFC timing on Write operation
QFC on writes is enabled as soon as possible after the clock edge of write command and disabled as soon
as possible after the last DQS-in low going edge.
2
0
1
5
3
4
6
7
Hi-Z
DQS@tDQSSmax
QFC
t
QCSW
*1
t
QCHW min.
Dout 0Dout 1
BL = 2
Write
DQ’S@tDQSSmax
Command
CK
CK
DQS@tDQSSmin
DQ’S@tDQSSmin
2
0
1
5
3
4
6
7
Hi-Z
QFC
t
QCSW
*1
t
QCHW min.
Dout 0 Dout 1
BL = 2
Write
Command
CK
CK
Figure 27. : QFC timing on write operation with tDQSSmax
Figure 28. : QFC timing on write operation with tDQSSmin
*2
t
QCHW max.
*2
t
QCHW max.
1. The value of tQCSW min. is 1.25ns from the last low going data strobe edge to QFC tri-state.
2. The value of tQCSW max. is 0.5tcK from the first high going clock edge after the last low going data strobe
edge to QFC tri-state.
相關(guān)PDF資料
PDF描述
K4H640438A-TLB0 Euronord Enclosure; NEMA Type:1, 4, 4X, 12, 13; Enclosure Material:Polycarbonate; External Height:4.7"; External Width:3.1"; External Depth:3.3"; Enclosure Color:Gray
K4H640438B-TCA0 Euronord Enclosure; NEMA Type:1, 4, 4X, 12, 13; Enclosure Material:Polycarbonate; External Height:6.2"; External Width:3.1"; External Depth:2.1"; Enclosure Color:Gray; Cover Color:Gray RoHS Compliant: Yes
K4H640438B-TCA2 Euronord Enclosure; NEMA Type:1, 4, 4X, 12, 13; Enclosure Material:Polycarbonate; External Height:6.2"; External Width:3.1"; External Depth:3.3"; Enclosure Color:Gray
K4H640438B-TCB0 MNX Series Enclosure; NEMA Type:1, 4, 4X, 6; Enclosure Material:Polycarbonate; External Height:1.4"; External Width:3.1"; External Depth:5.1"; Enclosure Color:Light Gray
K4H640438B-TLA0 MNX Series Enclosure; NEMA Type:1, 4, 4X, 6; Enclosure Material:Polycarbonate; External Height:1.4"; External Width:3.1"; External Depth:5.1"; Enclosure Color:Light Gray
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
K4H640438A-TLB0 制造商:SAMSUNG 制造商全稱(chēng):Samsung semiconductor 功能描述:128Mb DDR SDRAM
K4H640438B-TCA0 制造商:SAMSUNG 制造商全稱(chēng):Samsung semiconductor 功能描述:128Mb DDR SDRAM
K4H640438B-TCA2 制造商:SAMSUNG 制造商全稱(chēng):Samsung semiconductor 功能描述:128Mb DDR SDRAM
K4H640438B-TCB0 制造商:SAMSUNG 制造商全稱(chēng):Samsung semiconductor 功能描述:128Mb DDR SDRAM
K4H640438B-TLA0 制造商:SAMSUNG 制造商全稱(chēng):Samsung semiconductor 功能描述:128Mb DDR SDRAM
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