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參數(shù)資料
| 型號(hào)： | 82595TX |
| 廠商： | INTEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | ISA/PCMCIA HIGH INTEGRATION ETHERNET CONTROLLER |
| 中文描述： | 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP144 |
| 封裝： | TQFP-144 |
| 文件頁數(shù)： | 36/54頁 |
| 文件大小： | 643K |
| 代理商： | 82595TX |
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82595FX
11.1.1 PACKAGE THERMAL SPECIFICATIONS
The 82595FX is specified for operation when case
temperature is within the range of 0
§
C to 85
§
C. The
case temperature may be measured in any environ-
ment to determine whether the 82595FX is within
the specified operating range. The case temperature
should be measured at the center of the top surface
opposite the pins.
The ambient temperature is guaranteed as long as
T
C
is not violated. The ambient temperature can be
calculated from the
i
JA
and the
i
JC
from the follow-
ing equations:
T
J
e
T
C
a
P
*
i
JC
T
A
e
T
J
b
P
*
i
JA
T
C
e
T
A
a
P
*
à
i
JA
b
i
JC
ó
i
JA
and
i
JC
values for the 160 QFP package are as
follows:
Thermal Resistance (
§
C/Watt)
i
JA
b
VS
b
Airflow ft/min (m/Sec)
i
JC
0 (0)
4.9
34.4
11.2 AC Timing Characteristics
281732–11
Figure 11-1. Voltage Levels for Differential Input
Timing Measurements (RCV and CLSN Pairs)
281732–12
Figure 11-2. Voltage Levels for
TDH, TDL, TDH and TDL
281732–13
Figure 11-3. Voltage Levels for TRMT
Pair Output Timing Measurements
281732–14
Figure 11-4. Voltage Levels for Differential Input
Timing Measurements (RD Pair)
11.3 AC Measurement Conditions
1. T
C
e
0
§
C to
a
85
§
C, V
CC
e
5V
g
5%
2. The signal levels are referred to in Figures 1, 2, 3
and 4.
3. AC Loads:
a) AUI Differential: a 10 pF total capacitance
from each terminal to ground and a load resis-
tor of 78
X
g
1% in parallel with a 27
m
H
g
5% inductor between terminals.
b) TPE: 20 pF total capacitance to ground.
281732–15
Figure 11-5. X1 Input Voltage Levels
for Timing Measurements
36
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