83C694D datasheet(21/33 Pages) SMSC

21 / 33 page

5.0

AC OPERATING CHARACTERISTICS

Ta = 0°C (32°F) to 70°C (158°F)

Vcc = 5V

± 5%

NOTE

All typical values are given for Vcc = 5V and Ta = 25°C (77°F).

SYMBOL

PARAMETER

MIN

TYP

MAX

UNITS

Oscillator Specification

tXTH

X1 rising edge to Transmit Clock High

–

nsec

tXTL

X1 rising edge to Transmit Clock Low

–

nsec

Transmit Specification

tTCD

Transmit Clock Duty Cycle at 50% (10 MHz)

tTCR

Transmit Clock Rise Time (20 to 80%)

–

nsec

tTCF

Transmit Clock Fall Time (20 to 80%)

–

nsec

tTDS

Transmit Data Setup Time to Transmit Clock Rising

Edge

–

nsec

tTDH

Transmit Data Hold Time from Transmit Clock

Rising Edge

–

nsec

tTES

Transmit Enable Setup Time to Transmit Clock

Rising Edge

–

nsec

tTEH

Transmit Enable Hold Time from Transmit Clock

Rising Edge

–

nsec

tTOD

Transmit Output Delay from Transmit Clock Rising

Edge

–

nsec

tTOR

Transmit Output Rise Time (20% to 80%) (TX

±)

–

nsec

Transmit Output Rise Time (TPX

±)

–

4.5

–

nsec

tTOF

Transmit Output Fall Time (80% to 20%) (TX

±)

–

nsec

Transmit Output Fall Time (TPX

±)

–

4.5

–

nsec

tTOJ

Transmit Output Jitter (TX

±)–

±0.25

–

nsec

tTOH

Transmit Output High before Idle in Half Step Mode 200

–

nsec

tTOI

Transmit Output Idle Time in Half Step Mode

–

350

nsec

tLTPW

Link Test Pulse Width

100

nsec

Receive Specification

tRCD

Receive Clock Duty Cycle at 50% (10 MHz)

tRCR

Receive Clock Rise Time (20% to 80%)

–

nsec

tRCF

Receive Clock Fall Time (20% to 80%)

–

nsec

tRDR

Receive Data Rise Time (20% to 80%)

–

nsec

tRDF

Receive Data Fall Time (80% to 20%)

–

nsec

tRDS

Receive Data Stable from Receive Clock

Rising Edge

±40

–

nsec

tCSON

Carrier Sense Turn on Delay (AUI)

–

nsec

Carrier Sense Turn on Delay (TP)

–

300

nsec

tCSOFF

Carrier Sense Turn off Delay (AUI)

–

160

nsec

Carrier Sense Turn off Delay (TP)

–

160

nsec

83C694D

AC OPERATING CHARACTERISTICS

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