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Am79C940B-25JC Fiches technique(PDF) 7 Page - Rochester Electronics

No de pièce Am79C940B-25JC
Description  Media Access Controller for Ethernet (MACE) 84-pin PLCC and 100-pin PQFP Packages
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Fabricant  ROCHESTER [Rochester Electronics]
Site Internet  http://www.rocelec.com/
Logo ROCHESTER - Rochester Electronics

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79C940
Specification Number 79C940B-CI (A) Rev C
Page 7 of 13
90
ABSOLUTE MAXIMUM RATINGS
Storage Temperature . . . . . . . . . . . . -65°C to +150°C
Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . .
Under Bias . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
Supply Voltage to AVSS
or DVss (AVDD, DVDD) . . . . . . . . . . .-0.3 V to +6.0 V
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 Max-
imum Ratings for extended periods may affect device reliabil-
ity. Programming conditions may differ.
OPERATING RANGES
Commercial (C) Devices
Ambient Temperature (TA) . . . . . . . . . . .0°C to +70°C
Industrial (I) Devices
Ambient Temperature (TA) . . . . . . . . .–40°C to +85°C
VCC Supply Voltages
. . . . . . . . . . . . . . . . . . . . . . (AVDD, DVDD) 5 V ±5%
All inputs within the range: . . AVDD – 0.5 V ≤ Vin ≤
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . AVSS + 0.5 V, or
. . . . . . . . . . . . . . . . . . . . . . . . . DVDD – 0.5 V ≤ Vin ≤
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DVSS + 0.5 V
Operating ranges define those limits between which the func-
tionality of the device is guaranteed.
DC CHARACTERISTICS (Unless otherwise noted, parametric values are the same
between Commercial devices and Industrial devices.)
Parameter
Symbol
Parameter Description
Test Conditions
Min
Max
Unit
VIL
Input LOW Voltage
0.8
V
VIH
Input HIGH Voltage
2.0
V
VILX
XTAL1 Input LOW Voltage
(External Clock Signal)
VSS = 0.0 V
–0.5
0.8
V
VIHX
XTAL1 Input HIGH Voltage
(External Clock Signal)
VSS = 0.0 V
VDD–
0.8
VDD+
0.5
V
VOL
Output LOW Voltage
IOL = 3.2 mA
0.45
V
VOH
Output HIGH Voltage
IOH = -0.4 mA (Note 1)
2.4
V
IIL1
Input Leakage Current
VDD = 5 V, VIN = 0 V
(Note 2)
–10
10
µA
IIL2
Input Leakage Current
VDD = 5 V, VIN = 0 V
(Note 2)
–200
200
µA
IIH
Input Leakage Current
VDD = 5 V, VIN = 2.7 V
(Note 3)
–100
µA
IIAXD
Input Current at DI+
and DI–
–1 V < VIN < AVDD + 0.5 V
–500
+500
µA
IIAXC
Input Current at CI+
and CI–
–1 V < VIN < AVDD + 0.5 V
–500
+500
µA
IILXN
XTAL1 Input LOW Current
during normal operation
VIN = 0 V
SLEEP = HIGH
–92
(Note 9)
µA
IIHXN
XTAL1 Input HIGH Current
during normal operation
VIN = 5.5 V
SLEEP = HIGH
92
(Note 10)
µA
IILXS
XTAL1 Input LOW Current
during Sleep
VIN = 0 V
SLEEP = LOW
<10
µA
IIHXS
XTAL1 Input HIGH Current
during Sleep
VIN = 5.5 V
SLEEP = LOW
410
µA
IOZ
Output Leakage Current
0.4 V < VOUT < VDD
(Note 4)
–10
10
µA
VAOD
Differential Output Voltage
|(DO+)–(DO–)|
RL = 78 Ω
630
1200
mV
VAODOFF
Transmit Differential Output
Idle Voltage
RL = 78 Ω (Note 5)
–40
+40
mV
TABLE 5
SPECIFICATION NUMBER: 79C940-CI (A) REV -
Page 7 of 13


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