KSZ8001L Micrel Inc, KSZ8001L Datasheet - Page 9

IC TXRX PHY 10/100 3.3V 48-LQFP

KSZ8001L

Manufacturer Part Number
KSZ8001L
Description
IC TXRX PHY 10/100 3.3V 48-LQFP
Manufacturer
Micrel Inc
Type
Transceiverr
Datasheets

Specifications of KSZ8001L

Protocol
MII, RMII, SMII
Voltage - Supply
1.8V, 3.3V
Mounting Type
Surface Mount
Package / Case
48-LQFP
Data Rate
100Mbps
No. Of Ports
1
Ethernet Type
IEEE 802.3u
Supply Current
52mA
Supply Voltage Range
1.71V To 1.89V, 3.135V To 3.465V
Operating Temperature Range
0°C To +70°C
Digital Ic Case
RoHS Compliant
Interface Type
MII, RMII
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
576-1620 - BOARD EVALUATION FOR KSZ8001L
Number Of Drivers/receivers
-
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Other names
576-1508
576-1508-5
576-1508-5
KSZ8001L

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March 2006
Micrel
Pin Number
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Note 1:
Pwr = power supply;
Gnd = ground;
I = input;
O = output;
I/O = bi-directional
Ipu = input w/ internal pull up;
Ipd = input w/ internal pull down;
Note 2:
MII Rx Mode: The RXD[3..0] bits are synchronous with RXCLK. When RXDV is asserted, RXD [3..0]
presents valid data to MAC through the MII. RXD [3..0] is invalid when RXDV is de-asserted.
Note 3:
RMII Rx Mode: The RXD[1..0] bits are synchronous with REF_CLK. For each clock period in which
CRS_DV is asserted, two bits of recovered data are sent from the PHY.
Note 4:
SMII Rx Mode: Receive data and control information are sent in 10 bit segments. In 100MBit mode, each
segment represents a new byte of data. In 10MBit mode, each segment is repeated ten times; therefore,
every ten segments represents a new byte of data. The MAC can sample any one of every 10 segments in
10MBit mode.
Pin Name
VDDRX
RX-
RX+
FXSD/
FXEN
GND
GND
REXT
VDDRCV
GND
TX-
TX+
NC
NC
GND
XO
XI
VDDPLL
RST#
Type
Pwr
I/O
I/O
Ipd/O
Gnd
Gnd
I
Pwr
Gnd
I/O
I/O
Gnd
O
I
Pwr
Ipu
(Note 1)
Pin Function
1.8V analog VDD
(See “Circuit Design Reference for Power Supply” section for details)
Physical receive or transmit ‘-’ differential signal
Physical receive or transmit ‘+’ differential signal
Fiber Mode Enable / Signal Detect in Fiber Mode
If FXEN=0, FX mode is disable. The default is “0”.
(See “100BASE-FX Mode” section for details)
Ground
Ground
Connect a 6.65KΩ external resistor from this pin to ground
3.3V analog VDD
(See “Circuit Design Reference for Power Supply” section for details)
Ground
Physical transmit or receive ‘-’ differential signal
Physical transmit or receive ‘+’ differential signal
No Connect
No Connect
Ground
25MHz crystal/oscillator clock connections
Pins (XI, XO) connect to a crystal. If an oscillator is used, XI connects to a
3.3V tolerant oscillator and XO is a no connect.
Clock is +/- 50ppm for both crystal and oscillator.
1.8V analog PLL VDD
(See “Circuit Design Reference for Power Supply” section for details)
Chip Reset
Active low, minimum of 50 us pulse is required
Ipu/O = input w/ internal pull up during
Ipd/O = input w/ internal pull down during
PD = strap pull down;
PU = strap pull up;
reset, output pin otherwise;
reset, output pin otherwise;
9
Revision 1.03
KSZ8001

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