74AHCT14S14 datasheet(3/8 Pages) DIODES

部件名	74AHCT14S14

功能描述	HEX INVERTERS WITH SCHMITT TRIGGER INPUTS

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制造商	DIODES [Diodes Incorporated]

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74AHCT14

Document number: DS35352 Rev. 3 - 2

3 of 8

www.diodes.com

January 2013

74AHCT14

Recommended Operating Conditions (Note 5) (@TA = +25°C, unless otherwise specified.)

Symbol

Parameter

Min

Max

Unit

VCC

Supply Voltage

4.5

5.5

V

VI

Input Voltage

0

5.5

V

VO

Output Voltage

0

VCC

V

Δt/ΔV

Input Transition Rise or Fall Rate

20

ns/V

TA

Operating Free-Air Temperature

-40

+125

°C

Note:

5. Unused inputs should be held at VCC or Ground.

Electrical Characteristics (@TA = +25°C, unless otherwise specified.)

Symbol

Parameter

Test Conditions

VCC

TA = -40°C to +85°C

TA = -40°C to +125°C

Unit

Min

Max

Min

Max

VT+

Positive-Going Input

Threshold Voltage

4.5V

1.9

V

5.5V

2.1

VT-

Negative-Going

Input Threshold

Voltage

4.5V

0.5

V

5.5V

0.6

0.55

∆VT

Hysteresis

(VT+ - VT-)

4.5V

0.5

V

5.5V

0.6

VOH

High-Level Output

Voltage

IOH = -50μA

4.5V

4.4

V

IOH = -8mA

4.5V

3.80

3.70

VOL

Low-Level Output

Voltage

IOL = 50μA

4.5V

0.1

V

IOL = 8mA

4.5V

0.44

0.55

II

Input Current

VI = GND to 5.5V

3.6V

±1

±2

μA

ICC

Supply Current

VI = GND or VCC, IO = 0

3.6V

20

40

μA

ΔICC

Additional Supply

Current

One input at VCC -2.1V

Other pins at VCC or

GND.

4.5V to 5.5V

1.35

5

mA

Operating Characteristics

Parameter

Test

Conditions

VCC = 5.5V

Unit

Typ

Cpd

Power Dissipation

Capacitance per Gate

f = 1 MHz

14.8

pF

Ci

Input Capacitance

Vi = VCC – or

GND

4.0

pF

Switching Characteristics

Symbol

Parameter

Test

Conditions

VCC

TA = +25°C

-40°C to +85°C

-40°C to +125°C

Unit

Min

Typ

Max

Min

Max

Min

Max

tPD

Propagation

Delay AN to YN

Figure 1

CL = 15pF

4.5V to 5.5V

0.5

3.4

6.9

0.5

8.0

0.5

9.0

ns

Figure 1

CL = 50pF

4.5V to 5.5V

0.5

4.9

10.0

0.5

10.0

0.5

11.0

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