MC74LCX646DW Ver la hoja de datos (PDF) - Motorola => Freescale

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componentes Descripción

Fabricante

MC74LCX646DW

Low−Voltage CMOS Octal Transceiver/Registered Transceiver

Motorola => Freescale 

MC74LCX646

CAPACITIVE CHARACTERISTICS

Symbol

Parameter

CIN

CI/O

CPD

Input Capacitance

Input/Output Capacitance

Power Dissipation Capacitance

Condition

Typical

Unit

VCC = 3.3V, VI = 0V or VCC

7

pF

VCC = 3.3V, VI = 0V or VCC

8

pF

10MHz, VCC = 3.3V, VI = 0V or VCC

25

pF

2.7V

An, Bn,

1.5V

SBA, SAB

0V

tPLH, tPHL

VOH

Bn, An

1.5V

VOL

WAVEFORM 1 – SAB to B and SBA to A, An to Bn PROPAGATION DELAYS

tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns

OE

1.5V

DIR

tPZH

An, Bn

1.5V

tPHZ

1.5V

2.7V

0V

VOH – 0.3V

≈ 0V

tPZL

tPLZ

≈ 3.0V

An, Bn

1.5V

VOL + 0.3V

WAVEFORM 2 – OE/DIR to An/Bn OUTPUT ENABLE AND DISABLE TIMES

tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns

Figure 1. AC Waveforms

MOTOROLA

6

LCX DATA

BR1339 — REV 3

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