參數(shù)資料
型號： AM79C940VCW
廠商： ADVANCED MICRO DEVICES INC
元件分類： 微控制器/微處理器
英文描述： Media Access Controller for Ethernet (MACE)
中文描述： 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP80
封裝： TQFP-80
文件頁數(shù)： 90/122頁
文件大?。?/td> 914K
代理商： AM79C940VCW
AMD
90
Am79C940
DC CHARACTERISTICS over COMMERCIAL operating ranges unless otherwise
specified (continued)
Parameter
Symbol
Parameter Description
Test Conditions
V
AOCM
DO
±
Common Mode
R
L
= 78
Output Voltage
V
OD
I
DO
±
Differential Output
R
L
= 78
(Note 6)
Voltage Imbalance
V
ATH
Receive Data Differential
RL = 78
(Note 6)
Input Threshold
V
ASQ
DI
±
and CI
±
Differential
Input Threshold Squelch
RL = 78
(Note 6)
V
IRDVD
DI
±
and CI
±
Differential
Mode Input Voltage Range
V
ICM
DI
±
and CI
±
Input Bias
I
IN
= 0 mA
Voltage
V
OPD
DO
±
Undershoot Voltage
(Note 5)
at Zero Differential on
Transmit Return to
Zero (ETD)
I
DD
Power Supply Current
SCLK = 25 MHz
XTAL1 = 20 MHz
I
DDSLEEP
Power Supply Current
SLEEP
Asserted, AWAKE = 0
RWAKE = 0 (Note 7)
I
DDSLEEP
Power Supply Current
SLEEP
Asserted, AWAKE = 1
RWAKE = 0 (Note 7)
I
DDSLEEP
Power Supply Current
SLEEP
Asserted, AWAKE = 0
RWAKE = 1 (Note 7)
Twisted Pair Interface
I
IRXD
Input Current at RXD
±
AV
SS
< V
IN
< AV
DD
R
RXD
RXD
±
Differential Input
(Note 8)
Resistance
V
TIVB
RXD+, RXD– Open Circuit
I
IN
= 0 mA
Input Voltage (Bias)
V
TIDV
Differential Mode Input
AV
DD
= +5 V
Voltage Range (RXD
±
)
V
TSQ+
RXD Positive Squelch
Sinusoid
Threshold (Peak)
5 MHz
≤
f
≤
10 MHz
V
TSQ-
RXD Negative Squelch
Sinusoid
Threshold (Peak)
5 MHz
≤
f
≤
10 MHz
V
THS+
RXD Post-Squelch
Sinusoid
Positive Threshold (Peak)
5 MHz
≤
f
≤
10 MHz
V
THS-
RXD Post-Squelch
Sinusoid
Negative Threshold (Peak)
5 MHz
≤
f
≤
10 MHz
V
LTSQ+
RXD Positive Squelch
LRT
= LOW
Threshold (Peak)
V
LTSQ-
RXD Negative Squelch
LRT
= LOW
Threshold (Peak)
V
LTHS+
RXD Post-Squelch Positive
LRT
= LOW
Threshold (Peak)
V
LTHS-
RXD Post-Squelch
LRT
= LOW
Negative Threshold (Peak)
Min
2.5
Max
AVDD
Unit
V
–25
25
mV
–35
35
mV
–160
–275
mV
1.5
V
AV
DD
–3.0
AV
DD
–0.8
V
–100
mV
75
mA
100
μ
A
10
mA
20
mA
–500
10
500
μ
A
K
AV
DD
– 3.0
AV
DD
– 1.5
V
–3.1
+3.1
V
300
520
mV
–520
–300
mV
150
293
mV
–293
180
–150
312
mV
mV
–312
–180
mV
90
156
mV
–156
–90
mV
相關(guān)PDF資料
PDF描述
AM79C940 Media Access Controller for Ethernet (MACE)
AM79C940JCW Media Access Controller for Ethernet (MACE)
AM79C940KCW Media Access Controller for Ethernet (MACE)
AM79C960 PCnetTM-ISA Single-Chip Ethernet Controller
AM79C960KC PCnetTM-ISA Single-Chip Ethernet Controller
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