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參數(shù)資料
| 型號(hào)： | DNC3X3125 |
| 廠商： | Lineage Power |
| 英文描述： | 10/100 Mbits/s Ethernet Transceiver Macrocell(10M位/秒和100 M位/秒以太網(wǎng)收發(fā)器宏單元) |
| 中文描述： | 10/100 Mbits /秒以太網(wǎng)收發(fā)器宏單元（1000萬位/秒和100海里位/秒以太網(wǎng)收發(fā)器宏單元） |
| 文件頁數(shù)： | 14/32頁 |
| 文件大?。?/td> | 460K |
| 代理商： | DNC3X3125 |
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14
DNC3X3125
10/100 Mbits/s Ethernet Transceiver Macrocell
Advance Data Sheet
March 2000
4
MII Interface Design
The chip layout will affect MII electrical specifications. Figures 3, 4, and 5 show the PHY logic on the interfaces. If
the MAC logic follows the rules below, then the interface should function properly:
1. Transmit signals should change on the positive edge of TxClk.
2. Receive signals should be captured on the positive edge of RxClk.
3. Management output should change on the negative edge of MDC (and be stable on its positive edge) manage-
ment inputs should be latched on the positive edge of MDC.
Absolute Maximum Ratings
(T
A
= 25
°
C)
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Table 10. Absolute Maximum Ratings
Table 11. Operating Conditions
* Typical power dissipations are specified at 5 V and 25 °C. This is the power dissipated by the DNC3X3125. An additional 0.2 W of power is
required for the external twisted-pair driver termination resistors.
Parameter
Symbol
T
A
T
stg
P
D
—
—
Min
0
–40
—
–0.5
—
Max
70
125
3.5
Unit
°
C
°
C
W
V
V
Ambient Operating Temperature
Storage Temperature
Power Dissipation
Voltage on Any Pin with Respect to Ground
Maximum Supply Voltage
V
DD
+ 0.5
3.5
Parameter
Symbol
—
Min
—
Typ*
—
Max
3.465
Unit
V
Operating Supply Voltage
Power Dissipation:
All Ports Autonegotiating
All Ports 10Base-T Link
10Base-T TX/RX 100%
100Base-T TX
P
D
P
D
P
D
P
D
—
—
—
—
40
90
370
440
50
110
400
500
mW
mW
mW
mW
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