AM79C985 Advanced Micro Devices, AM79C985 Datasheet - Page 35

• Manufacturer Part Number: AM79C985
• Description: enhanced Integrated Multiport Repeater Plus (eIMR+)
• Manufacturer: Advanced Micro Devices

ABSOLUTE MAXIMUM RATINGS
Storage Temperature . . . . . . . . . . –65 C to +150 C
Ambient Temperature Under Bias . . . . 0 C to +70 C
Supply Voltage referenced to
AV
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.
DC CHARACTERISTICS over Commercial operating ranges unless otherwise specified
Digital I/O
AUI Ports
Twisted Pair Ports
Parameter
V
I
Symbol
AOD
SS
AOD
V
V
V
I
V
V
V
V
V
I
V
ILSTR
V
AOCM
R
V
V
OLOD
IAXD
I
V
AICM
V
V
AODI
AIDV
AOD
AOC
ASQ
IRXD
I
ATH
OH
OL
TIVB
IL
RXD
or DV
IH
TID
IL
OFF
OFF
SS
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)
Input Current at DI and CI Pairs
DI , CI Open Circuit Input Voltage Range
Differential Mode Input Voltage Range
(DI, CI)
DI, CI Squelch Threshold
DI Switching Threshold
Differential Output Voltage (DO+) – (DO)
Differential Output Voltage (CI+) – (CI–)
(Reverse Mode)
DO Differential Output Voltage Imbalance
DO Differential Idle Output Voltage
DO Differential Idle Output Current
DO+, DO- Common Mode Output Voltage
Input Current at RXD
and CI Pairs
RXD Differential Input
RXD+, RXD– Open Circuit
Input Voltage (bias)
Differential Mode Input
Range (RXD)
(AV
DD
, DV
Parameter Description
DD
) . . . . . . . –0.3 V to +6.0 V
P R E L I M I N A R Y
Am79C985
R
Test Conditions
L
AV
I
V
V
V
I
OLOD
OH
= 78
I
OPERATING RANGES
Commercial (C) Devices
Temperature (T
Supply Voltages (V
Operating ranges define those limits between which
the functionality of the device is guaranteed.
V
V
V
V
OL
SS
SS
SS
R
R
R
R
R
SS
DD
DD
SS
SS
(Note 1)
(Note 1)
L
L
L
L
L
<V
<V
<V
I
= –0.4 mA
= 4.0 mA
IN
<V
= 78
= 78
= 78
= 78
= 78
= 0.0 V
= 0.0 V
= 5.0 V
= 5.0 V
= 12 mA
–
IN
IN
IN
= 0
IN
(Note 1)
<V
<V
<V
<V
DD
DD
DD
DD
A
) . . . . . . . . . . . . . . . . . 0 C to +70 C
DD
V
V
DD
DD
–500
–275
–500
–0.5
–2.5
–1.0
–3.1
) . . . . . . . . . . . . . . . . .+5 V 5%
Min
620
620
–25
–40
2.4
-35
2.5
2.0
10
–
–
–
–
– 3.0
– 3.0
V
V
0.5 + V
DD
DD
–160
1100
1100
Max
+2.5
+1.0
+3.1
V
500
+35
+25
+40
500
0.8
0.4
10
50
0.4
–
DD
–
– 1.0
– 1.5
DD
Unit
mV
mV
mV
mV
mV
mV
mA
k
V
V
V
V
V
V
V
V
V
V
A
A
A
A
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