74LVC3G14DP datasheet(8/17 Pages) PHILIPS

8 / 17 page

9397 750 14543

Product data sheet

Rev. 03 — 31 January 2005

8 of 17

Philips Semiconductors

74LVC3G14

Triple inverting Schmitt trigger with 5 V tolerant input

14. Waveforms

Measurement points are given in Table 10.

Logic levels: VOL and VOH are typical output voltage drop that occur with the output load.

Fig 6.

Input (nA) to output (nY) propagation delays

Table 10:

Measurement points

Supply voltage

Input

Output

VCC

1.65 V to 1.95 V

0.5

× VCC

0.5

× VCC

2.3 V to 2.7 V

0.5

× VCC

0.5

× VCC

2.7 V

1.5 V

3.0 V to 3.6 V

1.5 V

4.5 V to 5.5 V

0.5

× VCC

0.5

× VCC

Test data is given in Table 11.

Deﬁnitions for test circuit:

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

CL = Load capacitance including jig and probe capacitance.

RL = Load resistor.

Fig 7.

Load circuitry for switching times

mna344

tPHL

tPLH

nA input

nY output

GND

VOH

VOL

VEXT

VCC

mna616

D.U.T.

PULSE

GENERATOR

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