am79c981 Advanced Micro Devices, am79c981 Datasheet - Page 25

• Manufacturer Part Number: am79c981
• Description: Integrated Multiport Repeater Plus? Imr+? ??9
• Manufacturer: Advanced Micro Devices

ABSOLUTE MAXIMUM RATINGS
Storage Temperature
Ambient Temperature Under Bias
Supply Voltage referenced to
AV
Stresses above those listed under ABSOLUTE MAXIMUM
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 device
reliability.
DC CHARACTERISTICS over operating ranges unless otherwise specified
Parameter
Digital I/O
AUI Port
V
Symbol
I
AOD
SS
AOD
V
V
V
V
V
V
V
I
V
V
V
V
AOCM
I
IAXD
V
I
V
AICM
AODI
AIDV
IHX
ASQ
AOD
I
ILX
ATH
or DV
IHX
OH
ILX
OL
IL
IH
OFF
IL
OFF
SS
Parameter Description
Input LOW Voltage
Input HIGH Voltage
Output LOW Voltage
Output HIGH Voltage
Input Leakage Current
(also DAT and JAM as inputs)
X
X
Crystal Input LOW Current
Crystal Input HIGH Current
Input Current at DI+/-
and CI+/- pairs
DI+,DI-,CI+,CI- Open Circuit Input
Common Mode Voltage (bias)
Differential Mode Input
Voltage Range (DI, CI)
DI, CI Squelch Threshold
DI Switching Threshold
Differential Output Voltage
|(DO+) – (DO-)|
DO Differential Output
Voltage Imbalance
DO Differential Idle Output Voltage
DO Differential Idle Output Current
DO+/- Common Mode Output Voltage
(AV
1
1
Crystal Input LOW Voltage
Crystal Input HIGH Voltage
DD
, DV
. . . . . . . . . . .
DD
)
. . . . . . . . . .
. . . . . . .
–65 C to +150 C
–0.3 to +6 V
0 to 70 C
PRELIMINARY
Am79C981
Test Conditions
DV
I
I
DV
DV
DV
V
V
AV
I
AV
(Note 1)
R
R
R
R
R
OL
OH
IN
IN
IN
L
L
L
L
L
SS
= 0A, AV
DD
= 78
SS
SS
SS
SS
= 78
= 78
= 78
= 78
= 4.0 mA
= –0.4 mA
= DV
= DV
<V
< V
= 0.0 V
= 0.0 V
= 0.0 V
= 5.0 V
OPERATING RANGES
Commercial (C) Devices
Operating ranges define those limits between which the fun-
tionality of the device is guaranteed
.
IN
SS
DD
IN
<DV
Temperature (T
Supply Voltage (AV
(Note 1)
< AV
SS
DD
= 0 V
DD
A
)
. . . . . . . . . . . . . . . .
DD
AV
, DV
–500
DD
–275
–0.5
–0.5
–2.5
Min
–35
620
–25
–40
2.0
2.4
3.8
2.5
–1
–
–
–
–
– 3.0
DD
)
. . . . . . .
DV
DV
AV
AV
+500
–160
1100
Max
+2.5
DD
DD
DD
+35
+25
+40
0.8
0.4
1.0
10
10
10
+1
–
DD
+0.5
+0.5
–1.0
5 V to 5%
0 to +70 C
AMD
Unit
mV
mV
mV
mV
mV
mA
1–95
V
V
V
V
V
V
V
V
V
A
A
A
A