HD74LVC14TELL 查看數據表（PDF） - Renesas Electronics

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HD74LVC14TELL

Hex Schmitt-trigger Inverters

Renesas Electronics 

HD74LVC14

Test Circuit

Input

VCC

Pulse Generator

Zout = 50 Ω

Notes: 1. CL includes probe and jig capacitance.

CL =

50 pF

Output

450 Ω

50 Ω Scope

Waveforms

Input A

Output Y

10 %

tr

90 %

Vref

tPHL

Vref

tf

90 %

Vref

10 %

tPLH

Vref

VIH

GND

VOH

VOL

Notes:

TEST

VIH

VCC = 2.7 V,

3.3±0.3 V VCC = 5.0±0.5 V

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%.

REJ03D0345-0400 Rev.4.00 Nov 01, 2007

Page 4 of 5

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