AM79C970A Advanced Micro Devices, AM79C970A Datasheet - Page 176

• Manufacturer Part Number: AM79C970A
• Description: PCnet-PCI II Single-Chip Full-Duplex Ethernet Controller for PCI Local Bus Product
• Manufacturer: Advanced Micro Devices

DC CHARACTERISTICS over COMMERCIAL operating ranges unless otherwise
specified (continued)
176
Twisted Pair Interface (10BASE-T) (Continued)
Attachment Unit Interface (AUI)
Notes:
1. I OL1 applies to AD[31:0], C/ BE [3:0], PAR and REQ.
2. V OH does not apply to open-drain output pins.
3. Outputs are CMOS and will be driven to rail if the load is not resistive.
4. I IX applies to all input pins except XTAL1.
5. I OZL and I OZH apply to all three-state output pins and bi-directional pins.
6. Parameter not tested. Value determined by characterization.
7. Tested, but to values in excess of limits. Test accuracy not sufficient to allow screening guard bands.
8. Correlated to other tested parameters—not tested directly.
9. Test not implemented to data sheet specification.
10. The power supply current in Magic Packet mode is linear. For example, at CLK = 20 MHz the maximum Magic Packet mode
Parameter
Symbol
V
V
I
V
V
I OL2 applies to DEVSEL, FRAME, INTA, IRDY, PERR, SERR, STOP, TRDY, EECS , ERA[7:0], ERACLK , EROE, DXCVR/
NOUT, ERD7/TXDAT, ERD6/TXEN and TDO.
I OL3 applies to EESK/ LED1 /SFBD, LED2 /SRDCLK, EEDO/ LED3 /SRD, and EEDI/ LNKST.
power supply current would be 67 mA.
AMD
AODOFF
V
V
V
V
V
V
V
AODOFF
V
V
V
I
I
R
RXDTH
TXOFF
IRDVD
IAXD
IAXC
AOD
CMT
ASQ
OPD
TXH
TXL
ATH
ODI
ICM
TXI
TX
Parameter Description
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)
DI and CI Differential Mode Input
Voltage Range
DI and CI Input Bias Voltage
DO Undershoot Voltage at ZERO
Differential on Transmit Return
to ZERO (ETD)
P R E L I M I N A R Y
Am79C970A
Test Conditions
(Note 6)
AV
AV
(Note 6)
–1V < V
–1V < V
R
R
R
R
R
–275
–1.5
I
(Note 9)
IN
L
L
L
L
L
= 0 mA
SS
DD
= 78
= 78
= 78
= 78
= 78
= 0 V
= 5 V
IN
IN
< AV
< AV
(Note 9)
(Note 8)
(Note 7)
DD
DD
+ 0.5 V
+ 0.5 V
AV
AV
–500
–500
–160
AV
Min
–35
–40
630
–40
–35
DD
2.5
1.5
DD
–1
–0.6
–3.0 AV
SS
AV
+500
+500
1200
–100
AV
AV
Max
SS
mV
DD
35
40
40
80
40
25
35
V
1
+0.6
–1.0
DD
DD
Units
mV
mV
mV
mV
mV
mA
mV
mV
mV
V
V
V
V
A
A