KSZ8873MLL Micrel Inc, KSZ8873MLL Datasheet - Page 11
![IC ETHERNET SWITCH 3PORT 64-LQFP](/photos/6/81/68149/64-lqfp-micrel_sml.jpg)
KSZ8873MLL
Manufacturer Part Number
KSZ8873MLL
Description
IC ETHERNET SWITCH 3PORT 64-LQFP
Manufacturer
Micrel Inc
Specifications of KSZ8873MLL
Data Rate
100Mbps
Controller Type
Ethernet Switch Controller
Interface
MII
Voltage - Supply
1.8V, 2.5V, 3.3V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
64-LQFP
No. Of Ports
3
Ethernet Type
IEEE 802.3u
Supply Current
115mA
Supply Voltage Range
2.5V, 3.3V
Digital Ic Case Style
LQFP
No. Of Pins
64
Svhc
No SVHC (15-Dec-2010)
Base
RoHS Compliant
Number Of Primary Switch Ports
3
Internal Memory Buffer Size
32
Fiber Support
No
Integrated Led Drivers
Yes
Phy/transceiver Interface
MII
Power Supply Type
Analog/Digital
Data Rate (typ)
10/100Mbps
Vlan Support
Yes
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
1.89/3.465V
Operating Temperature Classification
Commercial
Interface Type
MII, RMII
Operating Temperature Range
0°C To +70°C
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Other names
576-3459
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
KSZ8873MLL
Manufacturer:
Micrel Inc
Quantity:
1 934
Company:
Part Number:
KSZ8873MLL
Manufacturer:
ADI
Quantity:
27
Company:
Part Number:
KSZ8873MLL AM
Manufacturer:
Micrel
Quantity:
1 638
Company:
Part Number:
KSZ8873MLLJ
Manufacturer:
Micrel
Quantity:
323
Micrel, Inc.
Pin Description and I/O Assignment
September 2009
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
RXM1
RXP1
AGND
TXM1
TXP1
VDDA_3.3
AGND
ISET
VDDA_1.8
RXM2
RXP2
AGND
TXM2
TXP2
FXSD2
PWRND
X1
X2
SMTXEN3
SMTXD33/
EN_REFCLKO_3
SMTXD32/
NC
SMTXD31
SMTXD30
GND
VDDIO
SMTXC3/
REFCLKI_3
SMTXER3/
MII_LINK_3
Pin Name
Type
I/O
I/O
Gnd
I/O
I/O
P
Gnd
O
P
I/O
I/O
Gnd
I/O
I/O
I
Ipu
I
O
I
lpu/I
I
I
I
Gnd
P
I/O
I
(1)
Description
Physical receive or transmit signal (– differential)
Physical receive or transmit signal (+ differential)
Analog ground
Physical transmit or receive signal (– differential)
Physical transmit or receive signal (+ differential)
3.3V analog V
Analog ground.
Set physical transmit output current.
Pull-down this pin with a 11.8K 1% resistor to ground.
1.8 analog VDD input power supply from VDDCO (pin 56) through
external Ferrite bead and capacitor.
Physical receive or transmit signal (– differential)
Physical receive or transmit signal (+ differential)
Analog ground.
Physical transmit or receive signal (– differential)
Physical transmit or receive signal (+ differential)
MLL/RLL: connect to analog ground.
FLL: Fiber signal detect / factory test pin
Chip power down input (active low).
25 or 50MHz crystal/oscillator clock connections.
Pins (X1, X2) connect to a crystal. If an oscillator is used, X1 connects to
a 3.3V tolerant oscillator and X2 is a no connect.
Note: Clock is +/- 50ppm for both crystal and oscillator.
Switch MII transmit enable
MLL/FLL: Switch MII transmit data bit 3
RLL: Strap option: RMII mode Clock selection
PU = Enable REFCLKO_3 output
PD = Disable REFCLKO_3 output
MLL/FLL: Switch MII transmit data bit 2
RLL: No connection
Switch MII transmit data bit 1
Switch MII transmit data bit 0
Digital ground
3.3V, 2.5V or 1.8V digital VDD input power supply for IO with well
decoupling capacitors.
MLL/FLL: Switch MII transmit clock (MII modes only)
RLL: Reference clock input
Note: pull up or down is needed if internal reference clock is used in RLL.
Switch MII transmit error in MII MAC mode
MII link indicator from host in MII PHY mode. High = No link.
Output in PHY MII mode and SNI mode
Input in MAC MII and RMII mode.
11
DD
KSZ8873MLL/FLL/RLL
M9999-092309-1.2