MC74LVQ646DT データシートの表示（PDF） - Motorola => Freescale

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MC74LVQ646DT

Low-Voltage Quiet CMOS Octal Transceiver/Registered Transceiver (3-State, Non-Inverting)

Motorola => Freescale 

MC74LVQ646

CAPACITIVE CHARACTERISTICS

Symbol

Parameter

CPD

CIN

CI/O

Power Dissipation Capacitance

Input Capacitance

Input/Output Capacitance

Condition

Typical

Unit

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

50

pF

VCC = Open, VI = 0V or VCC

4.5

pF

VCC = 3.3V, VI = 0V or VCC

15

pF

VCC

An, Bn,

SBA, SAB

50% VCC

0V

tPLH, tPHL

VOH

Bn, An

50% VCC

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

50% VCC

DIR

tPZH

An, Bn

tPHZ

50% VCC

50% VCC

VCC

0V

VOH – 0.3V

≈ 0V

tPZL

tPLZ

≈ 3.0V

An, Bn

50% VCC

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

LVQ DATA

BR1478

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