HD74HC191RPEL Ver la hoja de datos (PDF) - Renesas Electronics

Número de pieza

componentes Descripción

Lista de partido

HD74HC191RPEL

HD74HC190P HD74HC191P HD74HC190FPEL HD74HC191FPEL HD74HC190RPEL HD74HC191RPEL

Renesas Electronics 

HD74HC190, HD74HC191

Test Circuit

VCC

Input

Pulse Generator

Zout = 50 Ω

VCC

Output

G

Load

Ripple

Clock

Down/Up

Clock Max/Min

A

B

C

QA to QD

D

Output

Output

CL = 50 pF

CL = 50 pF

CL = 50 pF

Note : 1. CL includes probe and jig capacitance.

Waveforms

• Wavwform – 1

Data

Load

tr

50%

tsu

50%

10%

90%

tr

tf

50%

tsu

50%

10%

90%

tr

Output

(Corresponding to data input)

Note : 1. Input : PRR ≤ 1 MHz, Zo = 50 Ω, tr ≤ 6 ns, tf ≤ 6 ns

VCC

0V

VCC

0V

VOH

VOL

Rev.3.00, Jan 31, 2006 page 8 of 12

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