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參數(shù)資料
| 型號(hào)： | LXT972A |
| 廠商： | Intel Corp. |
| 英文描述： | 3.3V Dual-Speed Fast Ethernet Transceiver Datasheet |
| 中文描述： | 3.3雙速快速以太網(wǎng)收發(fā)器數(shù)據(jù)表 |
| 文件頁(yè)數(shù)： | 54/70頁(yè) |
| 文件大小： | 833K |
| 代理商： | LXT972A |
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LXT972A
—
3.3V Dual-Speed Fast Ethernet Transceiver Datasheet
54
Datasheet
Figure 34. Power-Up Timing
Table 33. Power-Up Timing Parameters
Parameter
Sym
Min
Typ
1
Max
Units
Test Conditions
Voltage threshold
v1
–
2.9
–
V
–
Power Up delay
2
t1
–
–
300
μ
s
–
1. Typical values are at 25
°
C and are for design aid only; not guaranteed and not subject to production testing.
2. Power Up Delay is specified as a maximum value because it refers to the PHY's guaranteed performance - the PHY comes
out of reset after a delay of No MORE Than 300
μ
s
. System designers should consider this as a minimum value - After
threshold v1 is reached, the MAC should delay No LESS Than 300
μ
s
before accessing the MDIO port.
Figure 35. RESET Pulse Width and Recovery Timing
Table 34. RESET Pulse Width and Recovery Timing Parameters
Parameter
Sym
Min
Typ
1
Max
Units
Test Conditions
RESET pulse width
t1
10
–
–
ns
–
RESET recovery delay
2
t2
–
–
300
μ
s
–
1. Typical values are at 25
°
C and are for design aid only; not guaranteed and not subject to production testing.
2. Reset Recovery Delay is specified as a maximum value because it refers to the PHY's guaranteed performance - the PHY
comes out of reset after a delay of No MORE Than 300
μ
s
. System designers should consider this as a minimum value -
After de-asserting RESET*, the MAC should delay No LESS Than 300
μ
s
before accessing the MDIO port.
t1
VCC
MDIO,etc
v1
t2
RESET
MDIO,etc
t1
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PDF描述 |
|---|---|
| LXT972ALC | 3.3V Dual-Speed Fast Ethernet Transceiver Datasheet |
| LXT972M | Single-Port 10/100 Mbps PHY Transceiver |
| LXT9763 | Fast Ethernet 10/100 Hex Transceiver with Full MII |
| LXT9763HC | LAN TRANSCEIVER|HEX|QFP|208PIN|PLASTIC |
| LXT9784 | Transceiver Hardware Integrity Function Overview |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LXT972ALC | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:3.3V Dual-Speed Fast Ethernet Transceiver Datasheet |
| LXT972LCHFB8 | 制造商:LEVEL_ONE 功能描述: |
| LXT972M | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Single-Port 10/100 Mbps PHY Transceiver |
| LXT973QC | 制造商:Intel 功能描述:LAN Transceiver, Dual, 100 Pin, Plastic, QFP |
| LXT974 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Fast Ethernet 10/100 Quad Transceivers |
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