AM79C971VCW Advanced Micro Devices, AM79C971VCW Datasheet - Page 202

• Manufacturer Part Number: AM79C971VCW
• Description: PCnet-FAST Single-Chip Full-Duplex 10/100 Mbps Ethernet Controller for PCI Local Bus
• Manufacturer: Advanced Micro Devices

DC CHARACTERISTICS OVER COMMERCIAL OPERATING RANGES UNLESS
OTHERWISE SPECIFIED (CONTINUED)
Notes:
2. OL1 applies to AD[31:00], C/BE[3:0], PAR and REQ
202
Parameter
Symbol
Twisted Pair Interface (10BASE-T) (Cont’d)
V
V
V
V
V
V
V
V
V
V
R
Attachment Unit Interface (AUI)
I
I
V
V
I
V
V
V
V
IAXD
IAXC
AODOFF
AOD
AODOFF
ATH
ASQ
THS-
LTSQ+
LTSQ-
LTHS+
LTHS-
RXDTH
TXH
TXL
TXI
TXOFF
CMT
ODI
TX
OL2 applies to DEVSEL, FRAME, INTA, IRDY, PERR, SERR, STOP, TRDY, EECS, EEDI, EBUA_EBA[7:0], EBDA[15:8],
EBD[7:0], EROMCS, ERAMCS, AS_EBOE, EBWE, TXD[3:0], TX_EN, TX_ER, MDC, MDIO and TDO.
I
EEDO/LED3/SRD, and EEDI/LED0.
OL3
applies to EESK/LED1/SFBD, LED2/SRDCLK,
Parameter Description
RXD post-squelch negative
threshold (peak)
RXD positive squelch threshold
(peak)
RXD negative squelch threshold
(peak)
RXD post-squelch positive threshold
(peak)
RXD post-squelch negative
threshold (peak)
RXD switching threshold
TXD and TXP output HIGH
voltage
TXD and TXP output LOW
voltage
TXD and TXP differential output
voltage imbalance
TXD and TXP idle output voltage
TXD , TXP differential driver
output impedance
Input Current at
DI+ and DI-
Input current at
CI+ and CI-
Differential Output Voltage |(DO+)-
(DO-)|
Transmit Differential Output Idle
Voltage
Transmit Differential Output Idle
Current
Transmit Output Common Mode
Voltage
DO Transmit Differential Output
Voltage Imbalance
Receive Data Differential Input
Threshold
DI and CI Differential Input
Threshold (Squelch)
Test Conditions
Sinusoid 5 MHz
LRT = 0 (CSR15, bit 9)
Sinusoid 5 MHz
LRT = 1 (CSR15, bit 9)
Sinusoid 5 MHz
LRT = 1 (CSR15, bit 9)
Sinusoid 5 MHz
LRT = 1 (CSR15, bit 9)
Sinusoid 5 MHz
LRT = 1 (CSR15, bit 9)
(Note 4)
V
V
(Note 4)
-1V < V
-1V < VIN < AVDD + 0.5 V
RL = 78
RL = 78
(Note 9)
RL = 78
RL = 78
RL = 78
(Note 7)
SS
DD
Am79C971
= 0 V
= 5 V
IN
< AV
(Note 8)
DD
+ 0.5 V
f
f
f
f
f
10 MHz
10 MHz
10 MHz
10 MHz
10 MHz
Min
-293
180
-312
90
-176
-35
V
V
-40
-500
-500
630
-40
-1
2.5
-35
-275
DD
SS
- 0.6
Max
-150
312
-180
176
-90
35
V
V
40
40
80
+500
+500
1200
40
1
AVDD
25
35
-160
DD
SS
+ 0.6
Units
mV
mV
mV
mV
mV
mV
V
V
mV
mV
_
mV
mV
mA
V
mV
mV
mV
A
A