4.4 Thermal Information

THERMAL METRIC(1)

CD74AC32

UNIT

D (SOIC)

N (PDIP)

14 PINS

14 PINS

RθJA

Junction-to-ambient thermal resistance

119.9

80

°C/W

(1)

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

report, SPRA953.

4.5 Electrical Characteristics

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

PARAMETER

TEST CONDITIONS

VCC

TA = 25 °C

-55°C to 125°C

-40°C to 85°C

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

VOH

VI = VIH or VIL

IOH = -50 μΑ

1.5 V

1.4

1.4

1.4

V

3 V

2.9

2.9

2.9

4.5 V

4.4

4.4

4.4

IOH = -4 mA

3 V

2.58

2.4

2.48

IOH = -24 mA

4.5 V

3.94

3.7

3.8

IOH = -50 mA(1)

5.5 V

3.85

IOH = -75 mA(1)

5.5 V

3.85

VOL

VI = VIH or VIL

IOL = 50 μA

1.5 V

0.1

0.1

0.1

V

3 V

0.1

0.1

0.1

4.5 V

0.1

0.1

0.1

IOL = 12 mA

3 V

0.36

0.5

0.44

IOL = 24 mA

4.5 V

0.36

0.5

0.44

IOL = 50 mA(1)

5.5 V

1.65

IOL = 75 mA(1)

5.5 V

1.65

II

VI = VCC or GND

5.5 V

±0.1

±1

±1

μA

ICC

VI = VCC or GND,

IO = 0

5.5 V

4

80

40

μA

Ci

10

10

10

pF

(1)

Test one output at a time, not exceeding 1-second duration. Measurement is made by forcing indicated current and measuring voltage

to minimize power dissipation. Test verifies a minimum 50-Ω transmission-line drive capability at 85°C and 75-Ω transmission-line drive

capability at 125°C.

4.6 Switching Characteristics, VCC = 1.5V

over recommended operating free-air temperature range, VCC = 1.5V, CL = 50pF (unless otherwise noted) (see Figure 5-1)

PARAMETER

FROM (INPUT)

TO (OUTPUT)

-55°C to 125°C

-40°C to 85°C

UNIT

MIN

MAX

MIN

MAX

tPLH

A or B

Y

119

108

ns

tPHL

119

108

4.7 Switching Characteristics, VCC = 3.3V ± 0.3V

over recommended operating free-air temperature range, VCC = 3.3V ± 0.3V, CL = 50pF (unless otherwise noted) (see Figure

5-1)

PARAMETER

FROM (INPUT)

TO (OUTPUT)

-55°C to 125°C

-40°C to 85°C

UNIT

MIN

MAX

MIN

MAX

tPLH

A or B

Y

3.3

13.3

3.4

12.1

ns

tPHL

3.3

13.3

3.4

12.1

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CD54AC32, CD74AC32

SCHS343A – MARCH 2003 – REVISED AUGUST 2024

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