74LV423D 查看數據表（PDF） - Philips Electronics

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74LV423D

Dual retriggerable monostable multivibrator with reset

Philips Electronics 

Philips Semiconductors

Dual retriggerable monostable multivibrator

with reset

Preliminary specification

74LV423

TEST CIRCUIT

VCC

PULSE

GENERATOR

VI

RT

VO

D.U.T.

CL

S1

2 < VCC

Open

GND

RL

RL

Test Circuit for switching times

SWITCH POSITION

TEST

S1

tPLH/tPHL

tPLZ/tPZL

tPHZ/tPZH

Open

2 < VCC

GND

VCC

< 2.7V

2.7–3.6V

w 4.5V

VI

VCC

2.7V

VCC

DEFINITIONS

RL = Load resistor; see AC CHARACTERISTICS for value.

CL = Load capacitance includes jig and probe capacitance:

See AC CHARACTERISTICS for value.

RT = Termination resistance should be equal to ZOUT of

pulse generators.

SV00755

Figure 9. Load circuitry for switching times

1997 Feb 04

11

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