HD74LVC138TELL View Datasheet(PDF) - Renesas Electronics

Part Name

Description

Manufacturer

HD74LVC138TELL

3-to-8-line Decoder / Demultiplexer

Renesas Electronics 

HD74LVC138

Test Circuit

VCC

Input

Pulse Generator

Zout = 50 Ω

VCC

A

B

Y0 to Y 7

Output

C

CL =

50 pF

450 Ω

50 Ω Scope

G1

G 2A

G 2B

Note: 1. CL includes probe and jig capacitance.

Waveforms

Notes:

Input

In phase output

10 %

tr

90 %

Vref

tPLH

Vref

tPHL

tf

90 %

Vref

10 %

tPHL

Vref

tPLH

VIH

GND

VOH

VOL

Out of

phase output

Vref

Vref

VOH

VOL

Symbol

VCC = 2.7 V,

3.3±0.3 V VCC = 5.0±0.5 V

VIH

2.7 V

VCC

Vref

1.5 V

50%VCC

1. tr = 2.5 ns, tf = 2.5 ns

2. Input waveform : PRR = 10 MHz, duty cycle 50%

Rev.3.00 Jul. 23, 2004 page 4 of 5

Share Link: