74LVC1G99GD datasheet(17/29 Pages) NXP

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74LVC1G99_4

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Product data sheet

Rev. 04 — 16 April 2010

17 of 29

NXP Semiconductors

74LVC1G99

Ultra-configurable multiple function gate; 3-state

12. Waveforms

Measurement points are given in Table 25.

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

Fig 21. The data input (A, B, C, D) to output (Y) propagation delays

001aah341

tPLH

tPHL

GND

A, B, C, D input

Y output

VOH

VOL

VOH

VOL

tPLH

Measurement points are given in Table 25.

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

Fig 22. 3-state enable and disable times

mna644

tPLZ

tPHZ

outputs

disabled

outputs

enabled

outputs

enabled

output

LOW-to-OFF

OFF-to-LOW

output

HIGH-to-OFF

OFF-to-HIGH

OE input

VOL

VOH

VCC

GND

tPZL

tPZH

Table 25.

Measurement points

Supply voltage

Input

Output

VCC

1.65 V to 1.95 V

0.5VCC

VOL + 0.15 V

VOH − 0.15 V

2.3 V to 2.7 V

0.5VCC

VOL + 0.15 V

VOH − 0.15 V

2.7 V

1.5 V

VOL + 0.3 V

VOH − 0.3 V

3.0 V to 3.6 V

1.5 V

VOL + 0.3 V

VOH − 0.3 V

4.5 V to 5.5 V

0.5VCC

VOL + 0.3 V

VOH − 0.3 V

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