SN74HC244APWLE datasheet(5/32 Pages) TI1

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SN54HC244, SN74HC244

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SCLS130E – DECEMBER 1982 – REVISED MAY 2016

Product Folder Links: SN54HC244 SN74HC244

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

report, SPRA953.

6.4 Thermal Information

THERMAL METRIC(1)

SN54HC244, SN74HC244

UNIT

DB (SSOP)

DW (SOIC)

N (PDIP)

NS (SOP)

PW (TSSOP)

20 PINS

RθJA

Junction-to-ambient thermal

resistance

89.5

76.8

44.9

71.9

97.5

°C/W

RθJC(top)

Junction-to-case (top) thermal

resistance

50.9

42.2

30.9

38.2

32.6

°C/W

RθJB

Junction-to-board thermal resistance

44.6

25.8

39.3

48.4

°C/W

ψJT

Junction-to-top characterization

parameter

15.6

16.4

14.9

1.7

°C/W

ψJB

Junction-to-board characterization

parameter

44.2

44.1

25.7

47.9

°C/W

6.5 Electrical Characteristics

TA = 25°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOH

VI = VIH or VIL

IOH = –20 µA

VCC = 2 V

1.9

1.998

VCC = 4.5 V

4.4

4.499

VCC = 6 V

5.9

5.999

IOH = –6 mA, VCC = 4.5 V

3.98

4.3

IOH = –7.8 mA, VCC = 6 V

5.48

5.8

VOL

VI = VIH or VIL

IOL = 20 µA

VCC = 2 V

0.002

0.1

VCC = 4.5 V

0.001

0.1

VCC = 6 V

0.001

0.1

IOL = 6 mA, VCC = 4.5 V

0.17

0.26

IOL = 7.8 mA, VCC = 6 V

0.15

0.26

VI = VCC or 0, VCC = 6 V

±0.1

±100

IOZ

VO = VCC or 0, VI = VIH or VIL, VCC = 6 V

±0.01

±0.5

µA

ICC

VI = VCC or 0, IO = 0, VCC = 6 V

µA

VCC = 2 V to 6 V

6.6 Electrical Characteristics – SN54HC244

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

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOH

VI = VIH or VIL

IOH = –20 µA

VCC = 2 V

1.9

VCC = 4.5 V

4.4

VCC = 6 V

5.9

IOH = –6 mA, VCC = 4.5 V

3.7

IOH = –7.8 mA, VCC = 6 V

5.2

VOL

VI = VIH or VIL

IOL = 20 µA

VCC = 2 V

0.1

VCC = 4.5 V

0.1

VCC = 6 V

0.1

IOL = 6 mA, VCC = 4.5 V

0.4

IOL = 7.8 mA, VCC = 6 V

0.4

VI = VCC or 0, VCC = 6 V

±1000

IOZ

VO = VCC or 0, VI = VIH or VIL, VCC = 6 V

±10

µA

ICC

VI = VCC or 0, IO = 0, VCC = 6 V

160

µA

VCC = 2 V to 6 V

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