5962-9680101QCX

更新时间： 2024-01-13 21:39:39

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5962-9680101QCX 数据手册

SN54AHCT14, SN74AHCT14

HEX SCHMITT-TRIGGER INVERTERS

SCLS246P − OCTOBER 1995 − REVISED JULY 2003

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

T = 25°C

SN54AHCT14 SN74AHCT14

PARAMETER

TEST CONDITIONS

UNIT

MIN

TYP

MAX

MIN

MAX

MIN

MAX

4.5 V

5.5 V

4.5 V

5.5 V

4.5 V

5.5 V

0.9

1.9

0.9

1.9

0.9

1.9

T+

Positive-going input

threshold voltage

0.5

0.6

0.4

2.1

1.5

1.7

1.4

1.5

0.5

0.6

0.4

2.1

1.5

1.7

1.4

1.5

0.5

0.6

0.4

2.1

1.5

1.7

1.4

1.5

T−

Negative-going input

threshold voltage

ΔV

Hysteresis

(V − V

T+

)

T−

= −50 mA

= −8 mA

= 50 mA

= 8 mA

4.5 V

4.4

4.5

4.4

3.8

4.4

3.8

3.94

4.5 V

0.1

0.36

0.1

0.44

0.1

0.44

4.5 V

V = 5.5 V or GND

0 V to 5.5 V

5.5 V

V = V or GND,

I = 0

One input at 3.4 V,

Other inputs at V or GND

†

5.5 V

5 V

1.35

1.5

ΔI

V = V or GND

* On products compliant to MIL-PRF-38535, this parameter is not production tested at V = 0 V.

†

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

switching characteristics over recommended operating free-air temperature range

_CC= 5 V 0.5 V (unless otherwise noted) (see Figure 1)

T = 25°C

SN54AHCT14 SN74AHCT14

FROM

(INPUT)

(OUTPUT)

LOAD

CAPACITANCE

PARAMETER

UNIT

MIN

TYP

4**

MAX

7**

MIN

1**

MAX

8**

MIN

MAX

PLH

PHL

PLH

PHL

C = 15 pF

4**

5.5

C = 50 pF

** On products compliant to MIL-PRF-38535, this parameter is not production tested.

noise characteristics, V_CC= 5 V, C_L= 50 pF, T_A= 25°C (see Note 5)

SN74AHCT14

PARAMETER

UNIT

MIN

TYP

0.9

MAX

OL(P)

OL(V)

OH(V)

IH(D)

IL(D)

Quiet output, maximum dynamic V

Quiet output, minimum dynamic V

High-level dynamic input voltage

Low-level dynamic input voltage

−0.7

4.3

2.1

0.5

NOTE 5: Characteristics are for surface-mount packages only.

operating characteristics, V_CC= 5 V, T_A= 25°C

PARAMETER

TEST CONDITIONS

No load, f = 1 MHz

TYP

UNIT

Power dissipation capacitance

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

1 234 5 6 7...21

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