5.5 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

4.5 V

4.4

4.4

4.4

V

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

4.5 V

0.1

0.1

0.1

V

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

8

160

80

μA

ΔICC

(2)

VI = VCC - 2.1 V

4.5 V to 5.5 V

2.4

3

2.8

mA

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.

(2)

Additional quiescent supply current per input pin, TTL inputs high, 1 unit load

Table 5-1. Act Input Loading Table

INPUT

UNIT LOAD

A or B

0.37

G

0.83

A/B

1.33

5.6 Switching Characteristics

over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V, CL = 50 pF (unless otherwise noted) (see Load

Circuit and Voltage Waveforms)

PARAMETER

FROM (INPUT)

TO (OUTPUT)

–55°C to 125°C

–40°C to 85°C

UNIT

MIN

MAX

MIN

MAX

tPLH

A or B

Any Y

2.4

9.5

2.5

8.6

ns

tPHL

2.4

9.5

2.5

8.6

tPLH

A/B

Any Y

3.6

14.5

3.8

13.2

ns

tPHL

3.6

14.5

3.8

13.2

tPLH

G

Any Y

3.4

13.5

3.6

12.3

ns

tPHL

3.4

13.5

3.6

12.3

5.7 Operating Characteristics

VCC = 5 V, TA = 25°C

PARAMETER

TYP

UNIT

Cpd

Power dissipation capacitance

156

pF

www.ti.com

CD74ACT157

SCHS340D – MARCH 2003 – REVISED JULY 2025

Copyright © 2025 Texas Instruments Incorporated

Submit Document Feedback

5

Product Folder Links: CD74ACT157