LXT971A 3.3V Dual-Speed Fast Ethernet Transceiver
5.0
Test Specifications
Note: Table 17 through Table 40 and Figure 28 through Figure 41 represent the performance
specifications of the LXT971A. These specifications are guaranteed by test except where noted “by
design.” Minimum and maximum values listed in Table 19 through Table 40 apply over the
recommended operating conditions specified in Table 18.
5.1
Electrical Parameters
Table 17. Absolute Maximum Ratings
Parameter
Sym
VCC
Min
-0.3
-15
Max
4.0
Units
Supply voltage
LXT971A_C
V
TOPA
+85
ºC
(Commercial)
Operating temperature
LXT971A_E
TOPA
TST
-55
-65
+100
+150
ºC
ºC
(Extended)
Storage temperature
Caution: Exceeding these values may cause permanent damage.
Functional operation under these conditions is not implied.
Exposure to maximum rating conditions for extended periods may affect device
reliability.
Table 18. Operating Conditions
1
Parameter
Sym
Min
Typ
Max
Units
LXT971A_C
(Commercial)
TOPA
0
–
70
ºC
Recommended operating
temperature
LXT971A_E
(Extended)
TOPA
-40
–
85
ºC
Analog & Digital
I/O
Vcca, Vccd
Vccio
ICC
3.14
3.3
–
3.45
3.45
110
82
V
Recommended supply voltage2
2.35
–
V
100BASE-TX
10BASE-T
92
66
72
40
–
mA
mA
mA
mA
mA
mA
mA
ICC
–
100BASE-FX
Sleep Mode
ICC
–
95
VCC current
ICC
–
45
Hard Power Down
Soft Power Down
Auto-Negotiation
ICC
–
1
Icc
–
51
90
–
ICC
–
110
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production
testing.
2. Voltages with respect to ground unless otherwise specified.
56
Datasheet
Document #: 249414
Revision #: 002
Rev. Date: August 7, 2002