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74ALVCH16843

18-bit bus-interface D-type latch (3-State)

Philips Electronics 

Philips Semiconductors

18-bit bus interface D-type latch (3-State)

TEST CIRCUIT

VCC

PULSE

GENERATOR

VI

RT

VO

D.U.T.

CL

S1

2 * VCC

Open

GND

RL = 500 Ω

RL = 500 Ω

Test Circuit for switching times

DEFINITIONS

RL = Load resistor

CL = Load capacitance includes jig and probe capacitance

RT = Termination resistance should be equal to ZOUT of pulse generators.

SWITCH POSITION

TEST

S1

VCC

VI

tPLH/tPHL

Open

< 2.7V

VCC

tPLZ/tPZL

tPHZ/tPZH

2 < VCC

GND

2.7–3.6V

2.7V

SV00906

Waveform 6. Load circuitry for switching times

Product specification

74ALVCH16843

1998 Aug 04

9

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