LAN9218I-MT Standard Microsystems (SMSC), LAN9218I-MT Datasheet - Page 10

• Manufacturer Part Number: LAN9218I-MT
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LAN9218I-MT

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 2.97V
• Operating Supply Voltage (max): 3.63V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 100
• Lead Free Status / RoHS Status: Compliant

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Revision 2.7 (03-15-10)
1.1
1.2
Microprocessor/
Microcontroller
The SMSC LAN9218i integrated 10/100 MAC/PHY controller is a peripheral chip that performs the
function of translating parallel data from a host controller into Ethernet packets. The LAN9218i Ethernet
MAC/PHY controller is designed and optimized to function in an embedded environment. All
communication is performed with programmed I/O transactions using the simple SRAM-like host
interface bus.
The diagram shown above, describes a typical system configuration of the LAN9218i in a typical
embedded environment.
The LAN9218i is a general purpose, platform independent, Ethernet controller. The LAN9218i consists
of four major functional blocks. The four blocks are:
The LAN9218i is driver-, register-, and footprint-compatible with previous generation LAN9118 Family
devices. Drivers written for these products will work with the LAN9218i. However, in order to support
HP Auto-MDIX, other components such as the magnetics and the passive components around the
magnetics need to change, and supporting these changes does require a minor PCB change. A
reference design for the LAN9218i will be available on SMSC’s website.
Block Diagram
Compatibility with First-generation LAN9118 Family Devices
10/100 Ethernet PHY
10/100 Ethernet MAC
RX/TX FIFOs
Host Bus Interface (HBI)
System Bus
Figure 1.1 System Block Diagram
High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX and Industrial Temperature Support
DATASHEET
System Memory
LAN9218i
25MHz
XTAL
Peripherals
System
10
(Optional)
EEPROM
Magnetics
LEDS/
GPIO
Ethernet
SMSC LAN9218i
Datasheet