74LVC14A 데이터 시트보기 (PDF) - Philips Electronics

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74LVC14A

Hex inverting Schmitt-trigger with 5 V tolerant input

Philips Electronics 

Philips Semiconductors

Hex inverting Schmitt-trigger with

5 V tolerant input

Product specification

74LVC14A

handbook, full pagewidth

VCC

PULSE

VI

GENERATOR

VO

D.U.T.

RT

CL

S1

R load

2 × VCC

open

GND

R load

MNA505

VCC

1.2 V

2.3 to 2.7 V

2.7 V

3.0 to 3.6 V

VI

VCC

VCC

2.7 V

2.7 V

CL

30 pF

30 pF

50 pF

50 pF

Rload

500 Ω

500 Ω

500 Ω

500 Ω

tPLH/tPHL

open

open

open

open

Definitions for test circuits:

RL = Load resistor.

CL = Load capacitance including jig and probe capacitance.

RT = Termination resistance should be equal to the output impedance Zo of the pulse generator.

Fig.9 Load circuitry for switching times.

APPLICATION INFORMATION

2.5

handbook, halfpage

average

I CC

(mA)

2.0

1.5

1.0

MNA581

positive-going

edge

negative-going

edge

handbook, halfpage

R

C

MNA035

0.5

2.1 2.4 2.7 3.0 3.3 3.6 3.9

VCC (V)

All values given are typical values; unless otherwise specified.

Linear change of VI between 0.8 to 2.0 V.

Fig.10 Average supply current as a function of

supply voltage.

2003 Feb 28

f = T-1-- ≈ 0----.-8-----×-1----R-----C---

Fig.11 Relaxation oscillator using the 74LVC14.

11

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