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參數(shù)資料
| 型號： | KS8999I |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 33/52頁 |
| 文件大小： | 0K |
| 描述： | IC SWITCH 9-PORT 10/100 208-PQFP |
| 標準包裝： | 100 |
| 系列： | * |
| 類型： | * |
| 應(yīng)用： | * |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 208-MQFP，208-PQFP |
| 供應(yīng)商設(shè)備封裝： | 208-PQFP（28x28） |
| 包裝： | 散裝 |
| 配用： | 576-1023-ND - BOARD EVAL EXPERIMENT FOR KS8999 |
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January 2005
39
KS8999
Micrel
Absolute Maximum Ratings (Note 1)
Supply Voltage
(V
DD_RX, VDD_TX, VDD_RCV, VDD,
V
DD_PLLTX) .............................................. –0.5V to +2.3V
(V
DDIO) .................................................... –0.5V to +3.8V
Input Voltage ............................................... –0.5V to +4.0V
Output Voltage ............................................ –0.5V to +4.0V
Lead Temperature (soldering, 10 sec.) ..................... 270
°C
Storage Temperature (T
S) ....................... –55°C to +150°C
Operating Ratings (Note 2)
Supply Voltage
(V
DD_RX, VDD_TX, VDD_RCV, VDD,
V
DD_PLLTX) .............................................. +2.0V to +2.3V
(V
DDIO) ....................... +2.0V to +2.3V or +3.0V to +3.6V
Ambient Temperature (T
A)
Commercial .............................................. –0
°C to +70°C
Industrial ................................................. –40
°C to +85°C
Package Thermal Resistance, (Note 3)
PQFP
(θ
JA) No Air Flow ................................... 39.1°C/W
Electrical Characteristics (KS8999) (Note 4)
V
DD = 2.0V to 2.3V; TA = 0°C to +70°; unless noted.
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
DD
Supply Voltage
2.00
2.10
2.30
V
Supply Current (including TX output driver current)
100BaseTX Operation—Total
0.64
0.85
A
I
DX
100BaseTX (Transmitter)
0.35
0.40
A
I
DA
100BaseTX (Analog)
0.18
0.25
A
I
DD
100BaseTX (Digital)
0.11
0.20
A
10BaseT Operation—Total
1.04
1.32
A
I
DX
100BaseTX (Transmitter)
0.84
0.95
A
I
DA
100BaseTX (Analog)
0.11
0.17
A
I
DD
100BaseTX (Digital)
0.09
0.20
A
TTL Inputs
V
IH
Input High Voltage
(1/2 V
DDIO)V
+0.4
V
IL
Input Low Voltage
(1/2 V
DDIO)V
–0.4
I
IN
Input Current
V
IN = GND ~ VDD
–10
10
A
TTL Outputs
V
OH
Output High Voltage
I
OH = –4mA
V
DDIO
V
–0.4
V
OL
Output Low Voltage
I
OL = 4mA
+0.4
V
|I
OZ|
Output Tri-State Leakage
10
A
100BaseTX Transmit (measured differentially after 1:1 transformer)
V
O
Peak Differential Output Voltage
50
from each output to V
DD
0.95
1.05
V
IMB
Output Voltage Imbalance
50
from each output to V
DD
2%
t
r, tt
Rise/Fall Time
3
5
ns
Rise/Fall Time Imbalance
0
0.5
ns
Note 1.
Exceeding the absolute maximum rating may damage the device.
Note 2.
The device is not guaranteed to function outside its operating rating. Unused inputs must always be tied to an appropriate logic voltage level
(Ground to V
DD).
Note 3.
No HS (heat spreader) in package.
Note 4.
Specification for packaged product only.
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