TNETX3110 datasheet(62/65 Pages) TI1

部件名	TNETX3110

功能描述	ThunderSWITCHE 8/3 ETHERNETE SWITCH WITH EIGHT 10-MBIT/S PORTS AND THREE 10-/100-MBIT/S PORTS

PDF	65 Pages

Scroll/Zoom	100%

制造商	TI1 [Texas Instruments]

网页	http://www.ti.com

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62 / 65 page

TNETX3110

ThunderSWITCH

™ 8/3 ETHERNET™ SWITCH

WITH 8 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS

SPWS047A – MARCH 1998 – REVISED APRIL 1999

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

power-up OSCIN and RESET

timing requirements (see Figure 22)

NO.

MIN

NOM

MAX

UNIT

Frequency drift, OSCIN clock

±50

ppm

tc(OSCIN)

Cycle time, OSCIN

tw(OSCINL)

Pulse duration, OSCIN low

4.8

7.2

tw(OSCINH)

Pulse duration, OSCIN high

4.8

7.2

tw(RESET)

Pulse duration, RESET low

200

µs

tsu(RESET)

Setup time, RESET low before OSCIN

↑

th(RESET)

Hold time, RESET low after OSCIN

↑

td(OSCIN)

Delay time, from OSCIN invalid to OSCIN valid (stable)

td(RESET)

Delay time, from OSCIN stable to RESET

↑

tt(OSCIN)

Transition time, OSCIN rise and fall

RESET must be held low at least 25 ms after both power supplies are stable and OSCIN has reached its stable

operating frequency. RESET can be set to 0 for a minimum of 200

µs to reset the device.

OSCIN

(input)

RESET

(input)

VDD(2.5V)

(input)

VDD(3.3V)

(input)

Figure 22. Power-Up OSCIN and RESET

TNETX3110 数据表(PDF) 62 Page - Texas Instruments

TNETX3110 数据表(HTML) 62 Page - Texas Instruments

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