MICROCHIP ENC28J60

ENC28J60
Stand-Alone Ethernet Controller with SPI™ Product Brief
Features
• IEEE 802.3 Compatible Ethernet Controller
• Integrated MAC and 10BASE-T PHY
• 8-Kbyte Transmit/Receive Packet Dual Port
Buffer SRAM
• Receiver and Collision Squelch Circuit
• Supports one 10BASE-T Port with Automatic
Polarity Detection and Correction
• Programmable Automatic Retransmit on Collision
• Programmable Padding and CRC Generation
• Programmable Automatic Rejection of Erroneous
Packets
• 10 Mbit/s SPI™ Interface
• Buffer:
- Configurable transmit/receive buffer size
- Hardware managed circular receive FIFO
- Byte-wide random and sequential access
- Internal DMA for fast memory copying
- Hardware assisted IP checksum calculation
• MAC:
- Support for Unicast, Multicast and Broadcast
packets
- Programmable pattern matching
- Programmable wake-up on multiple packet
formats, including Magic Packet®, Unicast,
Multicast, Broadcast, specific packet match
or any packet
- Loopback mode
• PHY:
- Wave shaping output filter
- Loopback mode
• Operational:
- Outputs for 2 LED indicators
- Transmit and receive interrupts
- 25 MHz clock
- Clock out pin with programmable prescaler
- Operating voltage range of 3.14V to 3.45V
- Temperature range: -40°C to +85°C Industrial,
0°C to +70°C Commercial (SSOP only)
• 28-pin SSOP, SOIC, SPDIP and QFN packages
Pin Diagrams
18
17
16
15
CLKO
VSS
VCAP
VDD
LEDA
LEDB
VDD
LEDA
LEDB
VDDOSC
OSC2
OSC1
VSSOSC
VSSPLL
VDDPLL
VDDRX
VSSTX
TPOUT+
TPOUTVDDTX
28 27 26 25 24 23 22
WOL
SO
SI
SCK
CS
RESET
VSSRX
1
2
3
4
5
6
7
ENC28J60
 2004 Microchip Technology Inc.
Advance Information
21
20
19
18
17
16
15
VDDOSC
OSC2
OSC1
VSSOSC
VSSPLL
VDDPLL
VDDRX
8 9 10 11 12 13 14
TPOUTTPOUT+
VSSTX
11
12
13
14
28
27
26
25
24
23
22
21
20
19
INT
1
2
3
4
5
6
7
8
9
10
28-pin QFN
TPINTPIN+
RBIAS
VDDTX
VCAP
VSS
CLKO
INT
WOL
SO
SI
SCK
CS
RESET
VSSRX
TPINTPIN+
RBIAS
ENC28J60
28-pin SSOP, SOIC and SPDIP
DS39623E-page 1
ENC28J60
Description
The Microchip Technology Inc. ENC28J60 is a standalone Ethernet controller with an industry standard
Serial Peripheral Interface (SPI™). It is designed to
serve as an Ethernet network interface for any
microcontroller equipped with SPI.
Communication
with
the
microcontroller
is
implemented via SPI, with data rates up to 10 Mbit/s.
Dedicated pins are used for LED link and activity
indication and for transmit and receive interrupts.
The ENC28J60 meets all of the specifications for
IEEE 802.3. It incorporates a number of packet filtering
schemes to limit incoming packets. It also provides
internal DMA for fast data throughput and support for
hardware assisted IP checksum calculation.
Block Diagram
MCU
ENC28J60
I/O
SDO
SDI
SCK
INTX
CS
SI
SO
TPIN+/-
SCK
Tx/Rx
Buffer
MAC
INT, WOL
RJ45
TPOUT+/ETHERNET
TRANSFORMER
LEDA
DS39623E-page 2
PHY
LEDB
Advance Information
 2004 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
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•
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•
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and may be superseded by updates. It is your responsibility to
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RELATED TO THE INFORMATION, INCLUDING BUT NOT
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Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART,
PRO MATE, PowerSmart, rfPIC, and SmartShunt are
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AmpLab, FilterLab, MXDEV, MXLAB, PICMASTER, SEEVAL,
SmartSensor and The Embedded Control Solutions Company
are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, dsPICDEM,
dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR,
FanSense, FlexROM, fuzzyLAB, In-Circuit Serial
Programming, ICSP, ICEPIC, Migratable Memory, MPASM,
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PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial,
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SQTP is a service mark of Microchip Technology Incorporated
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respective companies.
© 2004, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
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Chandler and Tempe, Arizona and Mountain View, California in
October 2003. The Company’s quality system processes and
procedures are for its PICmicro® 8-bit MCUs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
 2004 Microchip Technology Inc.
Advance Information
DS39623E-page 3
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10/20/04
DS39623E-page 4
Advance Information
 2004 Microchip Technology Inc.