74LV138

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© NXP Semiconductors N.V. 2016. All rights reserved.

Product data sheet

Rev. 4 — 4 March 2016

8 of 16

NXP Semiconductors

74LV138

3-to-8 line decoder/demultiplexer; inverting

Table 8.

Measurement points

Supply voltage

Input

Output

VCC

VM

VM

< 2.7 V

0.5VCC

0.5VCC

2.7 V to 3.6 V

1.5 V

1.5 V

 4.5 V

0.5VCC

0.5VCC

Test data is given in Table 9.

Definitions test circuit:

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

RL = Load resistance.

CL = Load capacitance including jig and probe capacitance.

Fig 8.

Test circuit for measuring switching times

Table 9.

Test data

Supply voltage

Input

VCC

VI

tr, tf

< 2.7 V

VCC

 2.5 ns

2.7 V to 3.6 V

2.7 V

 2.5 ns

 4.5 V

VCC

 2.5 ns