HD74LVC574A Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HD74LVC574A

Octal D-type Flip Flops with 3-state Outputs

Hitachi -> Renesas Electronics 

HD74LVC574A

Test Circuit

VCC

Input

Pulse generator

Zout = 50 Ω

Input

Pulse generator

Zout = 50 Ω

VCC

Output

OC

1Q to 8Q

500 Ω S1

CL =

450 Ω

50 pF 50 Ω Scope

OPEN

*1 See under table

GND

1D to 8D

CK

Symbol

tPLH / t PHL

tsu / t h / t w

tZH/ t HZ

tZL / t LZ

S1

Vcc=2.7V,

3.3±0.3V

Vcc=5.0±0.5V

OPEN OPEN

GND

6V

GND

2×Vcc

Note:

1. CL includes probe and jig capacitance.

Waveforms – 1

Input CK

Input D

Output Q

tr

tf

10 %

tr

90 % 90 %

Vref

10 %

tf

90 %

90 %

10 %

tPLH

10 %

Vref

Vref

tPHL

Vref

VIH

GND

VIH

GND

VOH

VOL

6

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