5

SN74LVCH8T245

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SCES637B – AUGUST 2005 – REVISED FEBRUARY 2016

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Recommended Operating Conditions (continued)

over operating free-air temperature range (unless otherwise noted)

(1)(2)(3)

MIN

MAX

UNIT

(5)

High-level input voltage

Control inputs

(5)

V

1.7

2

Low-level input voltage

Control inputs

(5)

V

0.7

0.8

Input voltage

0

5.5

V

Active state

0

V

3-State

0

5.5

High-level output current

–4

mA

–8

–24

–32

Low-level output current

4

mA

8

24

32

Δt/Δv

Input transition rise or fall rate

Data inputs

20

ns/V

20

10

5

Operating free-air temperature

–40

85

°C

(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report, SPRA953.

6.4 Thermal Information

SN74LVCH8T245

UNIT

DB (SSOP)

DGV (TVSOP)

PW (TSSOP)

RHL (VQFN)

24 PINS

24 PINS

24 PINS

24 PINS

Junction-to-ambient thermal resistance

88.5

91.1

90.6

37.4

°C/W

Junction-to-case (top) thermal resistance

48.7

23.7

27.6

38.1

°C/W

Junction-to-board thermal resistance

44.1

44.5

45.3

15.2

°C/W

Junction-to-top characterization parameter

12.8

0.6

1.3

0.7

°C/W

Junction-to-board characterization

parameter

43.6

44.1

44.8

15.2

°C/W

Junction-to-case (bottom) thermal

resistance

—

—

—

4.3

°C/W