74LVC_LVCH244A

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Product data sheet

Rev. 8 — 26 June 2013

9 of 19

NXP Semiconductors

74LVC244A; 74LVCH244A

Octal buffer/line driver; 3-state

11. AC waveforms

Measurement points are given in Table 8.

Fig 6.

The input (nAn) to output (nYn) propagation delays

mna171

nAn input

nYn output

GND

Measurement points are given in Table 8.

Fig 7.

3-state enable and disable times.

mna362

outputs

disabled

outputs

enabled

outputs

enabled

output

LOW-to-OFF

OFF-to-LOW

output

HIGH-to-OFF

OFF-to-HIGH

nOE input

GND

GND

Table 8.

Measurement points

Supply voltage

Input

Output

1.2 V

0.5

 V

CC

0.5

 V

CC

1.65 V to 1.95 V

0.5

 V

CC

0.5

 V

CC

2.3 V to 2.7 V

0.5

 V

CC

0.5

 V

CC

2.7 V

2.7 V

1.5 V

1.5 V

3.0 V to 3.6 V

2.7 V

1.5 V

1.5 V