am79c940 Advanced Micro Devices, am79c940 Datasheet - Page 89

• Manufacturer Part Number: am79c940
• Description: Media Access Controller For Ethernet Mace
• Manufacturer: Advanced Micro Devices

ABSOLUTE MAXIMUM RATINGS
Storage Temperature
Ambient Temperature
Under Bias
Supply Voltage to AVSS
or DVss (AVDD, DVDD)
Stresses above those listed under Absolute Maximum Rat-
ings may cause permanent device failure. Functionality at or
above these limits is not implied. Exposure to Absolute Maxi-
mum Ratings for extended periods may affect device reliabil-
ity. Programming conditions may differ.
DC CHARACTERISTICS over COMMERCIAL operating ranges unless otherwise
specified
Parameter
Symbol
VAODOFF
IAODOFF
VAOD
IIHXN
VIHX
IIAXD
IIAXC
IILXN
IILXS
IIHXS
VILX
VOH
VOL
VIH
VIL
IIL1
IIL2
IOZ
IIH
. . . . . . . . . . . . . . . . . . . . . .
Input LOW Voltage
Input HIGH Voltage
XTAL1 Input LOW Voltage
(External Clock Signal)
XTAL1 Input HIGH Voltage
(External Clock Signal)
Output LOW Voltage
Output HIGH Voltage
Input Leakage Current
Input Leakage Current
Input Leakage Current
Input Current at DI+
and DI–
Input current at
CI+ and CI–
XTAL1 Input LOW Current
during normal operation
XTAL1 Input HIGH Current
during normal operation
XTAL1 Input LOW Current
during Sleep
XTAL1 Input HIGH Current
during Sleep
Output Leakage Current
Differential Output Voltage
Transmit Differential Output
Idle Voltage
Transmit Differential
Output Idle Current
|(DO+)–(DO–)|
Parameter Description
. . . . . . . . . . .
. . . . . . . . . . .
–65 C to +150 C
–0.3 V to +6.0 V
0 C to +70 C
VSS = 0.0 V
VSS = 0.0 V
IOL = 3.2 mA
IOH = –0.4 mA (Note 1)
VDD = 5 V, VIN = 0 V
(Note 2)
VDD = 5 V, VIN = 0 V
(Note 2)
VDD = 5 V, VIN = 2.7 V
–1 V < VIN < AVDD + 0.5 V
–1 V < VIN < AVDD + 0.5 V
VIN = 0 V
SLEEP = HIGH
VIN = 5.5 V
SLEEP = HIGH
VIN = 0 V
SLEEP = LOW
VIN = 5.5 V
SLEEP = LOW
0.4 V < VOUT < VDD
(Note 4)
RL = 78
RL = 78
RL = 78
(Note 3)
Test Conditions
Am79C940
(Note 5)
OPERATING RANGES
Commercial (C) Devices
Operating ranges define those limits between which the func-
tionality of the device is guaranteed.
Temperature (TA)
Supply Voltages
All inputs within the range:
(AVDD, DVDD)
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VDD –
–200
–500
–500
. . . . . . . . . . . . . . . . . . . . .
–0.5
Min
–10
–10
630
–40
2.0
0.8
2.4
–1
. . . . . . . . . . . . . .
. .
DVDD = 0.5 V
VDD +
AVDD + 0.5 V
–100
+500
+500
1200
Max
0.45
200
–92
<10
410
+40
0.8
0.8
0.5
10
92
10
+1
AVSS – 0.5 V, or
0 C to +70 C
DVSS – 0.5 V
AMD
5 V 5%
Unit
mV
mV
mA
V
V
V
V
V
V
A
A
A
A
A
A
A
A
A
A
Vin
Vin
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