MC74LVQ646 Datasheet, PDF (6/10 Pages) Motorola, Inc – LOW-VOLTAGE CMOS OCTAL TRANSCEIVER/ REGISTERED TRANSCEIVER

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