74LV138PWDH 查看數據表（PDF） - Philips Electronics

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74LV138PWDH

3-to-8 line decoder/multiplexer; inverting

Philips Electronics 

Philips Semiconductors

3-to-8 line decoder/demultiplexer; inverting

TEST CIRCUIT

Vcc

PULSE

GENERATOR

Vl

RT

D.U.T.

VO

50pF

CL

RL= 1k

Test Circuit for Outputs

DEFINITIONS

RL = Load resistor

CL = Load capacitance includes jig and probe capacitiance

RT = Termination resistance should be equal to ZOUT of pulse generators.

TEST

tPLH/tPHL

VCC

< 2.7V

2.7–3.6V

≥ 4.5 V

VI

VCC

2.7V

VCC

SV00902

Figure 3. Load circuitry for switching times.

Product specification

74LV138

1998 Apr 28

7

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