1893AFLF IDT, 1893AFLF Datasheet - Page 16

• Manufacturer Part Number: 1893AFLF
• Description: Ethernet ICs 3.3V 10/100 BASE TX INTEGRATED PHYCEIVER
• Manufacturer: IDT
• Type: Integrated PHY Transceiverr

Specifications of 1893AFLF

• Rohs: yes
• Product: Ethernet Transceivers
• Data Rate: 10 Mb/s, 100 Mb/s
• Supply Voltage - Max: 3.47 V
• Supply Voltage - Min: 3.14 V
• Maximum Operating Temperature: + 70 C
• Package / Case: SSOP-48
• Ethernet Connection Type: 100Base-TX, 10Base-T
• Maximum Supply Current: 160 mA
• Minimum Operating Temperature: 0 C
• Standard Supported: 802.3
• Part # Aliases: ICS1893AFLF

Chapter 4 Overview of the ICS1893AF
ICS1893AF, Rev D 10/26/04
The ICS1893AF is a stream processor. During data transmission, it accepts sequential nibbles from its
MAC (Media Access Control) converts them into a serial bit stream, encodes them, and transmits them
over the medium through an external isolation transformer. When receiving data, the ICS1893AF converts
and decodes a serial bit stream (acquired from an isolation transformer that interfaces with the medium)
into sequential nibbles. It subsequently presents these nibbles to its MAC Interface.
The ICS1893AF implements the OSI model’s physical layer, consisting of the following, as defined by the
ISO/IEC 8802-3 standard:
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The ICS1893AF is transparent to the next layer of the OSI model, the link layer. The link layer has two
sublayers: the Logical Link Control sublayer and the MAC sublayer. The ICS1893AF can interface directly
to the MAC.
The ICS1893AF transmits framed packets acquired from its MAC Interface and receives encapsulated
packets from another PHY, which it translates and presents to its MAC Interface.
Note:
Physical Coding sublayer (PCS)
Physical Medium Attachment sublayer (PMA)
Physical Medium Dependent sublayer (PMD)
Auto-Negotiation sublayer
ICS1893AF Data Sheet - Release
As per the ISO/IEC standard, the ICS1893AF does not affect, nor is it affected by, the underlying
structure of the MAC/repeater frame it is conveying.
Copyright © 2004, Integrated Circuit Systems, Inc.
All rights reserved.
16
Chapter 4 Overview of the ICS1893AF
October, 2004