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SMSC FEAST LAN91C100FD Specifications

Fast ethernet controller with full duplex capability
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PRODUCT FEATURES

Dual Speed CSMA/CD Engine (10 Mbps and 100
Mbps)
Compliant with IEEE 802.3 100BASE-T Specification
Supports 100BASE-TX, 100BASE-T4, and 10BASE-
T Physical Interfaces
32 Bit Wide Data Path (into Packet Buffer Memory)
Support for 32 and 16 Bit Buses
Support for 32, 16 and 8 Bit CPU Accesses
Synchronous, Asynchronous and Burst DMA
Interface Mode Options
128 Kbyte External Memory
LAN91C100-FD-SS FOR 208-PIN QFP LEAD-FREE ROHS COMPLIANT PACKAGE
LAN91C100-FD-ST FOR 208-PIN TQFP LEAD-FREE ROHS COMPLIANT PACKAGE
SMSC LAN91C100FD REV D
ORDER NUMBER(S):
LAN91C100-FD 208-PIN QFP PACKAGE
LAN91C100-FD FOR 208-PIN TQFP PACKAGE
PRODUCT PREVIEW
LAN91C100FD REV. D
FEAST Fast Ethernet
Controller with Full
Duplex Capability
Built-In Transparent Arbitration for Slave Sequential
Access Architecture
Flat MMU Architecture with Symmetric Transmit and
Receive Structures and Queues
MII (Media Independent Interface) Compliant MAC-
PHY Interface Running at Nibble Rate
MII Management Serial Interface
Seven Wire Interface to 10 Mbps ENDEC
EEPROM-Based Setup
Full Duplex Capability
Data Brief
Revision 1.0 (09-22-08)

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Summary of Contents for SMSC FEAST LAN91C100FD

  • Page 1: Product Features

    LAN91C100-FD 208-PIN QFP PACKAGE LAN91C100-FD-SS FOR 208-PIN QFP LEAD-FREE ROHS COMPLIANT PACKAGE LAN91C100-FD FOR 208-PIN TQFP PACKAGE LAN91C100-FD-ST FOR 208-PIN TQFP LEAD-FREE ROHS COMPLIANT PACKAGE SMSC LAN91C100FD REV D LAN91C100FD REV. D FEAST Fast Ethernet Controller with Full Duplex Capability...
  • Page 2 Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSC’s website at http://www.smsc.com.

  • Page 3: General Description

    4 bit wide data transfers at the nibble rate. This interface is applicable to 10 Mbps or 100 Mbps networks. Three of the LAN91C100FD’s pins are used to interface to the two-line MII serial management protocol. Four I/O ports (one input and three output pins) are provided for LAN83C694 configuration.

  • Page 4: Block Diagram

    Revision 1.0 (09-22-08) FEAST Fast Ethernet Controller with Full Duplex Capability ARBITER DIRECT MEMORY ACCESS MEMOR Y MANAGEMENT UNIT 25 MHz Figure 1 LAN91C100FD Block Diagram PRODUCT PREVIEW 10 Mb Interface MEDIA Medi a ACCESS Independent Interface CONTROL SMSC LAN91C100FD REV D...
  • Page 5 4. Dimension for foot length L measured at the gauge plane 0.25 mm above the seating plane. 5. Details of pin 1 identifier are optional but must be located within the zone indicated. SMSC LAN91C100FD REV D Figure 2 208 Pin QFP Package Outline Table 1 208 Pin QFP Package Parameters 4.07...
  • Page 6 Overall Package Height Standoff Body Thickness X Span X Body Size Y Span Y body Size Lead Frame Thickness Lead Foot Length Lead Length Lead Pitch Lead Foot Angle Lead Width Lead Shoulder Radius Lead Foot Radius Coplanarity SMSC LAN91C100FD REV D...

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