KSZ8842-16MBLI TR Micrel Inc, KSZ8842-16MBLI TR Datasheet - Page 123
KSZ8842-16MBLI TR
Manufacturer Part Number
KSZ8842-16MBLI TR
Description
2-Port Ethernet Switch + Generic (8, 16-Bit) Bus Interface (I-Temp)
Manufacturer
Micrel Inc
Datasheet
1.KSZ8842-16MBLI_TR.pdf
(141 pages)
Specifications of KSZ8842-16MBLI TR
Number Of Primary Switch Ports
2
Internal Memory Buffer Size
32
Operating Supply Voltage (typ)
3.3V
Fiber Support
Yes
Integrated Led Drivers
Yes
Phy/transceiver Interface
MII
Power Supply Type
Analog/Digital
Data Rate (typ)
10/100Mbps
Vlan Support
Yes
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
3.5V
Operating Supply Voltage (min)
3.1V
Operating Temperature Classification
Industrial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Compliant
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Electrical Characteristics
Micrel, Inc.
October 2007
Parameter
Supply Current for 100BASE-TX Operation
100BASE-TX
(analog core + PLL + digital core +
transceiver + digital I/O)
Supply Current for 10BASE-T Operation
10BASE-T
(analog core + PLL + digital core +
transceiver + digital I/O)
TTL Inputs
Input High Voltage
Input Low Voltage
Input Current
Output High Voltage
Output Low Voltage
Output Tri-state Leakage
100Base-TX Transmit (measured differentially after 1:1 transformer)
Peak Differential Output Voltage
Output Voltage Imbalance
Rise/Fall Time
Rise/Fall Time Imbalance
Duty Cycle Distortion
Overshoot
Reference Voltage of ISET
Output Jitter
10Base-T Receive
Squelch Threshold
10Base-T Transmit (measured differentially after 1:1 transformer)
Peak Differential Output Voltage
Output Jitter
Notes:
1. TA = 25°C, specification for packaged product only.
2. A single port’s transformer consumes an additional 45mA at 3.3V for 100BASE-T and 70mA at 3.3V for 10BASE-T.
(1)
Symbol
I
I
V
V
I
V
V
|I
V
V
T
V
V
V
Table 23. Electrical Characteristics
ddxio
ddxio
in
(2)
oz
r
ih
il
oh
ol
o
imb
set
sq
o
/T
|
(All Ports@100% Utilization)
(2)
f
(All Ports@100% Utilization)
VDDATX, VDDARX, VDDIO = 3.3V;
Chip only (no transformer)
VDDATX, VDDARX, VDDIO = 3.3V;
Chip only (no transformer)
V
I
I
100Ω termination on the differential
output.
100Ω termination on the differential
output
5MHz square wave
100Ω termination on the differential
output
Condition
Peak to peak
Peak to peak
TTL Outputs
oh
ol
in
123
= 8 mA
= -8 mA
= GND ~ VDDIO
KSZ8842-16/32 MQL/MVL/MVLI/MBL
+0.95V
-10µA
2.0V
2.4V
Min
3ns
0ns
122mA
400mV
90mA
0.7ns
1.8ns
0.5V
2.4V
Typ
M9999-102207-1.9
+1.05V
0.25ns
0.5ns
1.4ns
3.5ns
10µA
10µA
0.8V
0.4V
Max
5ns
2%
5%
+
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