74LVC14APWDH datasheet(5/10 Pages) PHILIPS

номер детали	74LVC14APWDH

подробное описание детали	Hex inverting Schmitt-trigger with 5V tolerant input

PDF	10 Pages

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производитель	PHILIPS [NXP Semiconductors]

домашняя страница	http://www.nxp.com

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Philips Semiconductors

Product specification

74LVC14A

Hex inverting Schmitt-trigger with 5V

tolerant input

1998 Apr 28

TRANSFER CHARACTERISTICS

Voltages are referenced to GND (ground = 0 V).

Tamb (°C)

TEST CONDITIONS

SYMBOL

PARAMETER

–40 TO +85

UNIT

VCC

WAVEFORMS

MIN

TYP1

MAX

(V)

WAVEFORMS

iti

–

1.2

VT+

Positive-going

threshold

1.1

–

2.0

2.7

Figures 1 and 2

threshold

1.1

–

2.0

2.7 to 3.6

Nti

–

1.2

VT–

Negative-going

threshold

0.8

–

1.5

2.7

Figures 1 and 2

threshold

0.8

–

1.5

2.7 to 3.6

–

1.2

Hysteresis

(VT+ – VT )

0.3

0.4

–

2.7

Figures 1, 2 and 3

(VT+

VT-)

0.3

0.45*

–

2.7 to 3.6

NOTES:

1. All typical values are measured at Tamb = 25°C

2. The VIH and VIL from the DC family characteristics are superseded by the VT+ and VT-.

TRANSFER CHARACTERISTIC WAVEFORMS

SV00427

VT+

VT–

Figure 1. Transfer characteristic.

SV00428

VT–

VT+

Figure 2. Definition of VT), VT- and VH;

where VT+ and VT- are between limits of 20% and 70%

(mA)

0.6

1.8

1.2

2.4

(V)

3.0

SV00444

Figure 3. Typical 74LVC14 transfer characteristics; VCC = 3.3 V.

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