1893AFLF IDT, 1893AFLF Datasheet - Page 104

• 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

9.2.3 Configuration Pins
ICS1893AF, Rev D 10/26/04
Table 9-7
Table 9-7. Configuration Pins
10/100SEL
10TCSR
100TCSR
REF_IN
REF_OUT
RESETn
Name
ICS1893AF Data Sheet - Release
Pin
lists the configuration pins.
Number
Pin
15
16
47
46
22
9
Output
Output
Type
Input
Input
Input
Input
Pin
Copyright © 2004, Integrated Circuit Systems, Inc.
10Base-T / 100Base-TX Select.
10M Transmit Current Set Resistor.
100M Transmit Current Set Resistor.
(Frequency) Reference Input.
This pin is connected to a 25-MHz oscillator. For a tolerance, see
Section 10.5.1, “Timing for Clock Reference In (REF_IN)
(Frequency) Reference Output.
This pin is used with a crystal.
(System) Reset (Active Low).
•
•
•
•
•
•
•
This pin acts as an output that indicates the current status of this
pin. In this case, when the signal on this pin is logic:
– Low, this pin indicates 10Base-T operations are selected.
– High, this pin indicates 100Base-TX operations are selected.
A resistor, connected between this pin and ground, is required to
establish the value of the transmit current used in 10Base-T mode.
The value and tolerance of this resistor is specified in
“Recommended Component
A resistor, connected between this pin and ground, is required to
establish the value of the transmit current used in 100Base-TX
mode.
The value and tolerance of this resistor is specified in
“Recommended Component
When the signal on this active-low pin is logic:
– Low, the ICS1893AF is in hardware reset.
– High, the ICS1893AF is operational.
For more information on hardware resets, see the following:
–
–
Section 5.1.2.1, “Hardware Reset”
Section 10.5.16, “Reset: Hardware Reset and Power-Down”
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104
Chapter 9 Pin Diagram, Listings, and Descriptions
Pin Description
Values”.
Values”.
Section 10.3,
Section 10.3,
Pin”.
October, 2004