74AHC139PW 데이터 시트보기 (PDF) - NXP Semiconductors.

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74AHC139PW

Dual 2-to-4 line decoder/demultiplexer

NXP Semiconductors. 

NXP Semiconductors

11. Waveforms

74AHC139; 74AHCT139

Dual 2-to-4 line decoder/demultiplexer

VI

nAn input

GND

VOH

nYn output

VOL

VM

t PHL

VM

t PLH

mna782

Fig 5.

Measurement points are given in Table 8.

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

Address input to output propagation delays

VI

nE input

GND

VOH

nYn output

VOL

VM

tPHL

VM

tPLH

mna783

Fig 6.

Measurement points are given in Table 8.

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

Enable input to output propagation delays

Table 8. Measurement points

Type

74AHC139

74AHCT139

Input

VM

0.5 × VCC

1.5 V

Output

VM

0.5 × VCC

0.5 × VCC

74AHC_AHCT139_2

Product data sheet

Rev. 02 — 9 May 2008

© NXP B.V. 2008. All rights reserved.

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