參數(shù)資料
型號: MC74LVQ646SD
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: LOW-VOLTAGE CMOS OCTAL TRANSCEIVER/ REGISTERED TRANSCEIVER
中文描述: LVQ SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24
封裝: PLASTIC, SSOP-24
文件頁數(shù): 6/10頁
文件大?。?/td> 230K
代理商: MC74LVQ646SD
MC74LVQ646
MOTOROLA
LVQ DATA
BR1478
6
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
Condition
Typical
Unit
CPD
Power Dissipation Capacitance
10MHz, VCC = 3.3V, VI = 0V or VCC
50
pF
CIN
Input Capacitance
VCC = Open, VI = 0V or VCC
4.5
pF
CI/O
Input/Output Capacitance
VCC = 3.3V, VI = 0V or VCC
15
pF
WAVEFORM 2 – OE/DIR to An/Bn OUTPUT ENABLE AND DISABLE TIMES
tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns
VCC
0V
VOH – 0.3V
0V
OE
An, Bn
tPZH
3.0V
VOL + 0.3V
50% VCC
50% VCC
tPHZ
tPZL
tPLZ
An, Bn
50% VCC
50% VCC
Figure 1. AC Waveforms
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
VCC
0V
An, Bn,
SBA, SAB
Bn, An
50% VCC
VOH
VOL
tPLH, tPHL
50% VCC
DIR
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