Nexperia

74ALVC244

Octal buffer/line driver; 3-state

10.1. Waveforms and test circuit

mna171

nAn input

nYn output

tPLH

tPHL

GND

VI

VM

VM

VM

VM

VOH

VOL

Measurement points are given in Table 8.

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

Fig. 7. Inputs nAn to output nYn propagation delays

001aae014

tPLZ

tPHZ

outputs

disabled

outputs

enabled

VY

VX

outputs

enabled

nYn output

LOW-to-OFF

OFF-to-LOW

nYn output

HIGH-to-OFF

OFF-to-HIGH

nOE input

VI

VOL

VOH

VCC

VM

GND

GND

tPZL

tPZH

VM

VM

Measurement points are given in Table 8.

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

Fig. 8. 3-state enable and disable times

Table 8. Measurement points

Supply voltage

Input

Output

VCC

VI

VM

VM

VX

VY

1.65 V to 1.95 V

VCC

0.5 x VCC

0.5VCC

VOL + 0.15 V

VOH - 0.15 V

2.3 V to 2.7 V

VCC

0.5 x VCC

0.5VCC

VOL + 0.15 V

VOH - 0.15 V

2.7 V

2.7 V

1.5 V

1.5 V

VOL + 0.3 V

VOH - 0.3 V

3.0 V to 3.6 V

2.7 V

1.5 V

1.5 V

VOL + 0.3 V

VOH - 0.3 V

74ALVC244

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 5 — 30 April 2021

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