1893AFLF IDT, 1893AFLF Datasheet - Page 130

• 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

10.5.17 10Base-T: Heartbeat Timing (SQE)
ICS1893AF, Rev D 10/26/04
Table 10-24
The time periods consist of timings of signals on the following pins:
•
•
•
Figure 10-18
Note:
1. For more information on 10Base-T SQE operations, see
2. In 10Base-T mode, one bit time = 100 ns.
Table 10-24. 10Base-T Heartbeat (SQE) Timing
Figure 10-18. 10Base-T Heartbeat (SQE) Timing Diagram
TXEN
TXCLK
COL
Period
Time
TXEN
TXCLK
COL
t1
t2
Test”.
ICS1893AF Data Sheet - Release
COL Heartbeat Assertion Delay from
TXEN De-Assertion
COL Heartbeat Assertion Duration
lists the significant time periods for the 10Base-T heartbeat (that is, the Signal Quality Error).
shows the timing diagram for the time periods.
Parameter
Copyright © 2004, Integrated Circuit Systems, Inc.
All rights reserved.
t1
130
10Base-T Half Duplex
10Base-T Half Duplex
Conditions
Section 7.5.10, “10Base-T Operation: SQE
t2
Chapter 10 DC and AC Operating Conditions
Min.
–
–
1000
Typ.
850
Max.
1500
1500
October, 2004
Units
ns
ns