參數(shù)資料
型號: AM79C974KCW
廠商: ADVANCED MICRO DEVICES INC
元件分類: 微控制器/微處理器
英文描述: PCnetTM-SCSI Combination Ethernet and SCSI Controller for PCI Systems
中文描述: 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP132
封裝: PLASTIC, QFP-132
文件頁數(shù): 92/153頁
文件大小: 838K
代理商: AM79C974KCW
AMD
P R E L I M I N A R Y
92
Am79C974
DC CHARACTERISTICS (continued)
Attachment Unit Interface
Parameter
Symbol
Attachment Unit Interface (AUI)
I
IAXD
Input Current at DI+ and DI–
I
IAXC
Input Current at CI+ and CI–
V
AOD
Differential Output Voltage |(DO+)–(DO–)|
V
AODOFF
Transmit Differential Output Idle Voltage
I
AODOFF
Transmit Differential Output Idle Current
V
CMT
Transmit Output Common Mode Voltage
V
ODI
DO
±
Transmit Differential Output
Voltage Imbalance
V
ATH
Receive Data Differential Input Threshold
V
ASQ
DI
±
and CI
±
Differential Input Threshold
(Squelch)
V
IRDVD
DI
±
and CI
±
Differential Mode Input
Voltage Range
V
ICM
DI
±
and CI
±
Input Bias Voltage
V
OPD
DO
±
Undershoot Voltage at ZERO
Differential on Transmit Return to
ZERO (ETD)
Twisted Pair Interface (10BASE-T)
I
IRXD
Input Current at RXD
±
R
RXD
RXD
±
Differential Input Resistance
V
TIVB
RXD
±
, RXD– Open Circuit Input
Voltage (Bias)
V
TIDV
Differential Mode Input Voltage
Range (RXD
±
)
V
TSQ+
RXD Positive Squelch Threshold (peak)
V
TSQ-
RXD Negative Squelch Threshold (peak)
V
THS+
RXD Post-Squelch Positive Threshold
(peak)
V
THS-
RXD Post-Squelch Negative Threshold
(peak)
V
LTSQ+
RXD Positive Squelch Threshold (peak)
V
LTSQ-
RXD Negative Squelch Threshold (peak)
V
LTHS+
RXD Post-Squelch Positive Threshold
(peak)
V
LTHS-
RXD Post-Squelch Negative Threshold
(peak)
V
RXDTH
RXD Switching Threshold
V
TXH
TXD
±
and TXP
±
Output HIGH Voltage
V
TXL
TXD
±
and TXP
±
Output LOW Voltage
V
TXI
TXD
±
and TXP
±
Differential Output
Voltage Imbalance
V
TX
OFF
TXD
±
and TXP
±
Idle Output Voltage
R
TX
TXD
±
, TXP
±
Differential Driver Output
Impedance
Parameter Description
Test Conditions
Min
Max
Unit
–1 V < V
IN
< AV
DD
+0.5V
–1 V < V
IN
< AV
DD
+0.5V
R
L
= 78
R
L
= 78
(Note 9)
R
L
= 78
(Note 8)
R
L
= 78
R
L
= 78
(Note 7)
–500
–500
630
–40
–1
2.5
+500
+500
1200
40
1
A
VDD
25
μ
A
μ
A
mV
mV
mA
V
mV
–35
–275
35
mV
mV
–160
–1.5
1.5
V
I
IN
= 0 mA
(Note 9)
AV
DD
–3.0 AV
DD
–1.0
V
–100
mV
AV
DD
< V
IN
< AV
DD
–500
10
AV
DD
–3.0 AV
DD
–1.5
500
μ
A
K
V
I
IN
= 0 mA
AV
DD
= 5.0 V
–3.1
3.1
V
Sinusoid, 5 MHz
f
10 MHz
Sinusoid, 5 MHz
f
10 MHz
Sinusoid, 5 MHz
f
10 MHz
300
–520
150
520
–300
293
mV
mV
mV
Sinusoid, 5 MHz
f
10 MHz
–293
–150
mV
LRT = LOW
LRT = LOW
LRT = LOW
180
–312
90
312
–180
176
mV
mV
mV
LRT = LOW
–176
–90
mV
(Note 4)
V
SS
= 0 V
V
DD
= 5 V
–35
35
V
DD
mV
V
V
mV
V
DD
–0.6
V
SS
–40
V
SS
+0.6
40
40
80
mV
(Note 4)
40
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