74LVC1G14GV Ver la hoja de datos (PDF) - Philips Electronics

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Fabricante

74LVC1G14GV

Single Schmitt-trigger inverter

Philips Electronics 

Philips Semiconductors

Single Schmitt-trigger inverter

Product specification

74LVC1G14

handbook, halfpage

VI

VT+

VH

VT−

VO

MNA027

handbook,1h0alfpage

I CC

(mA)

8

6

4

2

0

0

1

MNA641

2

VI (V) 3

Fig.9 Definitions of VT+, VT− and VH.

APPLICATION INFORMATION

The slow input rise and fall times cause additional power

dissipation, this can be calculated using the following

formula:

Pad = fi × (tr × ICC(AV) + tf × ICC(AV)) × VCC where:

Pad = additional power dissipation (µW);

fi = input frequency (MHz);

tr = input rise time (ns); 10 % to 90 %;

tf = input fall time (ns); 90 % to 10 %;

ICC(AV) = average additional supply current (µA).

Average ICC differs with positive or negative input

transitions, as shown in Fig.11.

An example of a relaxation circuit using the 74LVC1G14 is

shown in Fig.12.

Remark to the application information

All values given are typical values unless otherwise

specified.

Fig.10 Typical transfer characteristics at

VCC = 3.0 V.

handboo1k2, halfpage

average

I CC

(mA)

10

8

6

4

2

0

0

MNA642

positive-going

edge

negative-going

edge

2

4 VCC (V) 6

Fig.11 Average ICC for 74LVC1G Schmitt-trigger

devices; linear change of VI between

0.8 V to 2.0 V.

2004 Sep 10

11

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