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LAN91C111 Datasheet, PDF (1/125 Pages) SMSC Corporation – 10/100 Non-PCI Ethernet Single Chip MAC + PHY
LAN91C111
10/100 Non-PCI Ethernet Single Chip MAC + PHY
Highlights
• Single Chip Ethernet Controller
• Dual Speed - 10/100 Mbps
• Fully Supports Full Duplex Switched Ethernet
• Supports Burst Data Transfer
• 8 Kbytes Internal Memory for Receive and Trans-
mit FIFO Buffers
• Enhanced Power Management Features
• Optional Configuration via Serial EEPROM Inter-
face
• Supports 8, 16 and 32 Bit CPU Accesses
• Internal 32 Bit Wide Data Path (Into Packet Buffer
Memory)
• Built-in Transparent Arbitration for Slave Sequen-
tial Access Architecture
• Flat MMU Architecture with Symmetric Transmit
and Receive Structures and Queues
• 3.3V Operation with 5V Tolerant IO Buffers (See
Pin List Description for Additional Details)
• Single 25 MHz Reference Clock for Both PHY and
MAC
• External 25Mhz-output pin for an external PHY
supporting PHYs physical media.
• Low Power CMOS Design
• Supports Multiple Embedded Processor Host
Interfaces
- ARM
- SH
- Power PC
- Coldfire
- 680X0, 683XX
- MIPS R3000
• 3.3V MII (Media Independent Interface) MAC-
PHY Interface Running at Nibble Rate
• MII Management Serial Interface
• 128-Pin QFP RoHS compliant package
• 128-Pin TQFP 1.0 mm height RoHS compliant
package
• Commercial Temperature Range from 0C to
70C (LAN91C111)
• Industrial Temperature Range from -40C to 85C
(LAN91C111i)
Network Interface
• Fully Integrated IEEE 802.3/802.3u-100Base-TX/
10Base-T Physical Layer
• Auto-Negotiation: 10/100, Full / Half Duplex
• On Chip Wave Shaping - No External Filters
Required
• Adaptive Equalizer
• Baseline Wander Correction
• LED Outputs (User selectable – Up to 2 LED func-
tions at one time)
- Link
- Activity
- Full Duplex
- 10/100
- Transmit
- Receive
 2011-2016 Microchip Technology Inc.
DS00002276A-page 1