LAN8720A-CP SMSC, LAN8720A-CP Datasheet - Page 13

• Manufacturer Part Number: LAN8720A-CP
• Description: TXRX ETHERNET 10/100 RMII
• Manufacturer: SMSC
• Type: Transceiverr

Specifications of LAN8720A-CP

• Number Of Drivers/receivers: 4/4
• Protocol: RMII
• Voltage - Supply: 1.6 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 24-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1080

Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
SMSC LAN8720A/LAN8720Ai
NUM PINS
NUM PINS
1
1
1
1
1
1
Clock Output
Clock Input
Channel 2
Channel 2
Reference
Negative
Ethernet
Ethernet
Interrupt
External
External
External
External
Positive
Crystal
Crystal
NAME
TX/RX
TX/RX
NAME
Output
Output
Reset
Input
REFCLKO
SYMBOL
SYMBOL
XTAL1
XTAL2
CLKIN
nRST
nINT
RXP
RXN
Table 2.4 Ethernet Pins (continued)
Table 2.5 Miscellaneous Pins
DATASHEET
BUFFER
BUFFER
TYPE
TYPE
OCLK
VOD8
ICLK
ICLK
(PU)
(PU)
VO8
AIO
AIO
VIS
13
Transmit/Receive Positive Channel 2
Transmit/Receive Negative Channel 2
External crystal input
Single-ended clock oscillator input.
Note:
External crystal output
System reset. This signal is active low.
Active low interrupt output. Place an external
resistor pull-up to VDDIO.
Note:
Note:
This optional 50MHz clock output is derived from
the 25MHz crystal oscillator. REFCLKO is
selectable via the nINTSEL configuration strap.
Note:
Note:
When using a single ended clock
oscillator, XTAL2 should be left
unconnected.
Refer to
Management," on page 29
details on device interrupts.
Refer to
LED2 Polarity Selection," on page 37
details on how the nINTSEL
configuration strap is used to determine
the function of this pin.
Refer
Mode," on page 34
Refer to
LED2 Polarity Selection," on page 37
details on how the nINTSEL
configuration strap is used to determine
the function of this pin.
Section 3.7.4.2, "REF_CLK Out
DESCRIPTION
DESCRIPTION
Section 3.8.1.2, "nINTSEL and
Section 3.8.1.2, "nINTSEL and
Section 3.6, "Interrupt
for additional details.
Revision 1.2 (11-10-10)
for additional
for
for