CD74AC14

HEX SCHMITT TRIGGER INVERTER

SCHS228B − SEPTEMBER 1998 − REVISED MARCH 2004

3

POST OFFICE BOX 655303

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

PARAMETER

TEST CONDITIONS

VCC

MIN

MAX

MIN

MAX

MIN

MAX

UNIT

VT+

Positive-going

threshold

5 V

2.6

3.4

2.6

3.4

2.6

3.4

V

VT−

Negative-going

threshold

5 V

1.6

2.4

1.6

2.4

1.6

2.4

V

∆VT

Hysteresis

(VT+ − VT−)

5 V

0.5

0.5

0.5

V

1.5 V

1.4

1.4

1.4

IOH = −50 µA

3 V

2.9

2.9

2.9

IOH = −50 µA

4.5 V

4.4

4.4

4.4

VOH

VI = VT+

IOH = −4 mA

3 V

2.58

2.4

2.48

V

VOH

VI = VT+

IOH = −24 mA

4.5 V

3.94

3.7

3.8

V

IOH = −50 mA†

5.5 V

3.85

IOH = −75 mA†

5.5 V

3.85

1.5 V

0.1

0.1

0.1

IOL = 50 µA

3 V

0.1

0.1

0.1

IOL = 50 µA

4.5 V

0.1

0.1

0.1

VOL

VI = VT−

IOL = 12 mA

3 V

0.36

0.5

0.44

V

VOL

VI = VT−

IOL = 24 mA

4.5 V

0.36

0.5

0.44

V

IOL = 50 mA†

5.5 V

1.65

IOL = 75 mA†

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

† 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.

switching characteristics over recommended operating free-air temperature range,

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

−55

°C TO

125

°C

−40

°C TO

85

°C

UNIT

PARAMETER

(INPUT)

(OUTPUT)

MIN

MAX

MIN

MAX

UNIT

tPLH

A

Y

2.6

10.5

2.7

9.5

ns

tPHL

A

Y

2.6

10.5

2.7

9.5

ns

PARAMETER

TYP

UNIT

Cpd

Power dissipation capacitance

45

pF