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AM79C981 数据表(PDF) 25 Page - Advanced Micro Devices

部件名 AM79C981
功能描述  Integrated Multiport Repeater Plus??(IMR??
PDF  40 Pages
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制造商  AMD [Advanced Micro Devices]
网页  http://www.amd.com
标志 AMD - Advanced Micro Devices

AM79C981 数据表(HTML) 25 Page - Advanced Micro Devices

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AMD
PRELIMINARY
1–95
Am79C981
ABSOLUTE MAXIMUM RATINGS
Storage Temperature
–65
°C to +150°C
. . . . . . . . . . .
Ambient Temperature Under Bias
0 to 70
°C
. . . . . . .
Supply Voltage referenced to
AVSS or DVSS (AVDD, DVDD)
–0.3 to +6 V
. . . . . . . . . .
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.
OPERATING RANGES
Commercial (C) Devices
Temperature (TA)
0 to +70
°C
. . . . . . . . . . . . . . . .
Supply Voltage (AVDD, DVDD)
5 V to
±5%
. . . . . . .
Operating ranges define those limits between which the fun-
tionality of the device is guaranteed
.
DC CHARACTERISTICS over operating ranges unless otherwise specified
Parameter
Symbol
Parameter Description
Test Conditions
Min
Max
Unit
Digital I/O
VIL
Input LOW Voltage
DVSS = 0.0 V
–0.5
0.8
V
VIH
Input HIGH Voltage
2.0
DVDD+0.5
V
VOL
Output LOW Voltage
IOL = 4.0 mA
–
0.4
V
VOH
Output HIGH Voltage
IOH = –0.4 mA
2.4
–
V
IIL
Input Leakage Current
DVSS<VIN<DVDD
–
10
µA
(also DAT and JAM as inputs)
VILX
X1 Crystal Input LOW Voltage
DVSS = 0.0 V
–0.5
1.0
V
VIHX
X1 Crystal Input HIGH Voltage
DVSS = 0.0 V
3.8
DVDD+0.5
V
IILX
Crystal Input LOW Current
VIN = DVSS
–
10
µA
IIHX
Crystal Input HIGH Current
VIN = DVDD
–
10
µA
AUI Port
IIAXD
Input Current at DI+/-
AVSS < VIN < AVDD
–500
+500
µA
and CI+/- pairs
VAICM
DI+,DI-,CI+,CI- Open Circuit Input
IIN = 0A, AVSS = 0 V
AVDD – 3.0
AVDD–1.0
V
Common Mode Voltage (bias)
VAIDV
Differential Mode Input
AVDD = 5.0 V
–2.5
+2.5
V
Voltage Range (DI, CI)
VASQ
DI, CI Squelch Threshold
–275
–160
mV
VATH
DI Switching Threshold
(Note 1)
–35
+35
mV
VAOD
Differential Output Voltage
RL = 78
Ω
620
1100
mV
|(DO+) – (DO-)|
VAODI
DO Differential Output
RL = 78
Ω
–25
+25
mV
Voltage Imbalance
VAODOFF
DO Differential Idle Output Voltage
RL = 78
Ω
–40
+40
mV
IAODOFF
DO Differential Idle Output Current
RL = 78
Ω (Note 1)
–1
+1
mA
VAOCM
DO+/- Common Mode Output Voltage
RL = 78
Ω
2.5
AVDD
V



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