參數(shù)資料
型號(hào)： AM79C985KCW
廠商： ADVANCED MICRO DEVICES INC
元件分類： 網(wǎng)絡(luò)接口
英文描述： enhanced Integrated Multiport Repeater Plus (eIMR+⑩)
中文描述： DATACOM, ETHERNET TRANSCEIVER, PQFP100
封裝： PLASTIC, QFP-100
文件頁(yè)數(shù)： 35/48頁(yè)
文件大小： 260K
代理商： AM79C985KCW
Am79C985
35
P R E L I M I N A R Y
ABSOLUTE MAXIMUM RATINGS
Storage Temperature . . . . . . . . . . –65
Ambient Temperature Under Bias . . . . 0
Supply Voltage referenced to
AV
SS
or DV
SS
(AV
DD
Stresses above those listed under ABSOLUTE MAXI-
MUM RATINGS may cause permanent device failure.
Functionality at or above these limits is not implied.
Exposure to Absolute Maximum Ratings for extended
periods may affect reliability. Programming conditions
may differ.
°
C to +150
°
C to +70
°
°
C
C
, DV
DD
). . . . . . . –0.3 V to +6.0 V
OPERATING RANGES
Commercial (C) Devices
Temperature (T
A
) . . . . . . . . . . . . . . . . . 0
°
C to +70
°
C
Supply Voltages (V
DD
) . . . . . . . . . . . . . . . . .+5 V
±
5%
Operating ranges define those limits between which
the functionality of the device is guaranteed.
DC CHARACTERISTICS over Commercial operating ranges unless otherwise specified
Parameter
Symbol
Digital I/O
V
IL
V
IH
V
OL
V
OH
I
IL
I
ILSTR
V
OLOD
AUI Ports
I
IAXD
V
AICM
V
AIDV
Parameter Description
Test Conditions
Min
Max
Unit
Input LOW Voltage
Input HIGH Voltage
Output LOW Voltage
Output HIGH Voltage
Input Leakage Current
Input Leakage Current for STR pin
Open Drain Output LOW Voltage (LED pins)
V
SS
V
SS
I
OL
I
OH
V
SS
V
SS
I
OLOD
= 0.0 V
= 0.0 V
= 4.0 mA
= –0.4 mA
<V
IN
<V
DD
<V
IN
<V
DD
= 12 mA
–0.5
2.0
–
2.4
–
–
–
0.8
V
V
V
V
μ
μ
V
0.5 + V
DD
0.4
–
10
50
0.4
A
A
Input Current at DI
±
and CI
±
Pairs
V
SS
<V
IN
I
IN
<V
DD
= 0
–500
500
μ
V
A
DI
Differential Mode Input Voltage Range
(DI, CI)
DI, CI Squelch Threshold
±
, CI
±
Open Circuit Input Voltage Range
V
DD
– 3.0
V
DD
– 1.0
V
DD
= 5.0 V
–2.5
+2.5
V
V
ASQ
V
ATH
V
AOD
V
AOC
–
–275
–160
mV
DI Switching Threshold
(Note 1)
-35
+35
mV
Differential Output Voltage
Differential Output Voltage
(Reverse Mode)
DO Differential Output Voltage Imbalance
(DO+) – (DO)
(CI+) – (CI–)
R
L
= 78
620
1100
mV
R
L
= 78
620
1100
mV
V
AODI
V
AOD
I
AOD
V
AOCM
Twisted Pair Ports
I
IRXD
R
L
R
L
= 78
= 78
–25
+25
mV
OFF
DO Differential Idle Output Voltage
= 78
–40
+40
mV
OFF
DO Differential Idle Output Current
R
L
= 78
(Note 1)
–1.0
+1.0
mA
DO+, DO- Common Mode Output Voltage
R
L
2.5
V
DD
V
Input Current at RXD
and CI
±
Pairs
RXD Differential Input
RXD+, RXD– Open Circuit
Input Voltage (bias)
Differential Mode Input
Range (RXD)
±
AV
SS
<V
IN
<V
DD
–500
500
μ
A
R
RXD
V
TIVB
(Note 1)
10
–
k
V
DD
– 3.0
V
DD
– 1.5
V
V
TID
V
DD
= 5.0 V
–3.1
+3.1
V
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