HD74LVC16240ATEL 데이터 시트보기 (PDF) - Renesas Electronics

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HD74LVC16240ATEL

16-bit Buffers / Line Drivers with 3-state Outputs

Renesas Electronics 

HD74LVC16240A

Test Circuit

VCC

VCC

Input

Pulse Generator

Zout = 50 Ω

1G to 4G

1Y1 to 4Y4

1A1 to 4A4

Output

CL =

50 pF

500 Ω S1

450 Ω

50 Ω Scope

OPEN

*1 See under table

GND

Note: 1. CL includes probe and jig capacitance.

Symbol

tPLH / t PHL

tZH/ t HZ

tZL / t LZ

S1

Vcc=2.7V,

3.3±0.3V

Vcc=5.0±0.5V

OPEN OPEN

GND

GND

6V

2×Vcc

Waveforms – 1

Input A

10 %

tr

90 %

Vref

tPHL

tf

90 %

Vref

10 %

tPLH

Output Y

Vref

Vref

Notes: 1. tr = 2.5 ns, tf = 2.5 ns

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

VIH

GND

VOH

VOL

Rev.4.00 Jul. 29, 2004 page 5 of 7

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