4.4 Electrical Characteristics

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

PARAMETER

TEST CONDITIONS

VCC

TA = 25°C

SNx4ACT08

SNx4ACT08

UNIT

MIN

TYP

MAX

MIN

MAX

MIN

MAX

VOH

IOH = –50µA

4.5V

4.4

4.49

4.4

4.4

V

5.5V

5.4

5.49

5.4

5.4

IOH = –24mA

4.5V

3.86

3.7

3.76

5.5V

4.86

4.7

4.76

IOH = –50mA(1)

5.5V

3.85

IOH = –75mA(1)

5.5V

3.85

VOL

IOL = 50µA

4.5V

0.001

0.1

0.1

0.1

V

5.5V

0.001

0.1

0.1

0.1

IOL = 24mA

4.5V

0.36

0.5

0.44

5.5V

0.36

0.5

0.44

IOL = 50mA(1)

5.5V

1.65

IOL = 75mA(1)

5.5V

1.65

II

VI = VCC or GND

5.5V

±0.1

±1

±1

µA

ICC

VI = VCC or GND, IO = 0

5.5V

2

80

20

µA

ΔICC (2)

One input at 3.4V,

Other inputs at GND or VCC

5.5V

0.6

1.6

1.5

mA

Ci

VI = VCC or GND

5V

4.5

pF

(1)

Not more than one output should be tested at a time, and the duration of the test should not exceed 2ms.

(2)

This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0V or VCC.

4.5 Switching Characteristics

over recommended operating free-air temperature range, VCC = 5V ±0.5V (unless otherwise noted) (see Load Circuit and

Voltage Waveforms)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

TA = 25°C

SNx4ACT08

SNx4ACT08

UNIT

MIN

TYP

MAX

MIN

MAX

MIN

MAX

tPLH

A or B

Y

1

6.5

9

1

10

1

10

ns

tPHL

1

6.5

9

1

10

1

10

4.6 Operating Characteristics

VCC = 5 V, TA = 25°C

PARAMETER

TEST CONDITIONS

TYP

UNIT

Cpd

Power dissipation capacitance

CL = 50pF,

f = 1MHz

20

pF

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SN54ACT08, SN74ACT08

SCAS535E – SEPTEMBER 1995 – REVISED FEBRUARY 2025

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