TNETX4080 datasheet(50/64 Pages) TI1

50 / 64 page

TNETX4080

ThunderSWITCH II™ 8-PORT 10-/100-MBIT/S ETHERNET™ SWITCH

SPWS050A – AUGUST 1998 – REVISED NOVEMBER 1998

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†

Supply voltage range, VDD(2.5) (see Note 1)

–0.5 V to 2.7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply voltage range, VDD(3.3) (see Note 1)

–0.5 V to 3.6 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply voltage range, VDDa (see Note 1)

–0.5 V to 2.7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range, VI

–0.5 V to VDD(3.3) + 0.4 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output voltage range, VO

–0.5 V to VDD(3.3) + 0.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range (RSL), VIR

VREF – 0.35 to VREF + 0.8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output voltage range (RSL), VOR

0.0 to VDD

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Thermal impedance, junction-to-ambient package, ZθJA: Airflow = 0

11.11

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . .

Airflow = 100 ft/min

9.61

°C/W

. . . . . . . . . . . . . . . . .

Thermal impedance, junction-to-case package, ZθJC

0.94

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating case temperature range, TC

°C to 95°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, Tstg

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” can cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods can affect device reliability.

NOTE 1: All voltage values are with respect to GND.

recommended operating conditions

MIN

NOM

MAX

UNIT

VDD(2.5)

Supply voltage

2.25

2.5

2.7

VDD(3.3)

Supply voltage

3.3

3.6

VREF

RSL reference voltage

1.8

2.0

2.2

Input voltage

VDD(3.3)

Output voltage

VDD(3.3)

VIH

High-level input voltage

VDD(3.3)

VIL

Low-level input voltage (see Note 2)

0.8

IOH

High-level output current

–2

IOL

Low-level output current (except LED_DATA)

IOL

LED_DATA (pin AE19)

VIHR

High-level input voltage (RSL)

VREF+0.35

VREF+0.8

VILR

Low-level input voltage (RSL) (see Note 2)

VREF–0.35

VREF–0.8

IOHR

High-level output current (RSL)

–10

µA

IOLR

Low-level output current (RSL)

NOTE 2: The algebraic convention, in which the more-negative (less-positive) limit is designated as a minimum, is used for logic-voltage levels

only.

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