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MC74AC244 Datasheet(数据表) 5 Page - ON Semiconductor

部件型号  MC74AC244
说明  Octal Buffer/Line Driver with 3-State Outputs
下载  8 Pages
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制造商  ONSEMI [ON Semiconductor]
网页  http://www.onsemi.com
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MC74AC244, MC74ACT244
http://onsemi.com
5
AC CHARACTERISTICS (For Figures and Waveforms – See Section 3)
74ACT
74ACT
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85
°C
CL = 50 pF
Unit
Fig.
No.
Min
Typ
Max
Min
Max
tPLH
Propagation Delay
50
20
65
90
15
10 0
ns
3–5
tPLH
Pro agation Delay
Data to Output
5.0
2.0
6.5
9.0
1.5
10.0
ns
3–5
tPHL
Propagation Delay
50
20
70
90
15
10 0
ns
3–5
tPHL
Pro agation Delay
Data to Output
5.0
2.0
7.0
9.0
1.5
10.0
ns
3–5
tPZH
Output Enable Time
5.0
1.5
6.0
8.5
1.0
9.5
ns
3–7
tPZL
Output Enable Time
5.0
2.0
7.0
9.5
1.5
10.5
ns
3–8
tPHZ
Output Disable Time
5.0
2.0
7.0
9.5
1.5
10.5
ns
3–7
tPLZ
Output Disable Time
5.0
2.5
7.5
10.0
2.0
10.5
ns
3–8
*Voltage Range 5.0 V is 5.0 V
±0.5 V.
CAPACITANCE
Symbol
Parameter
Value
Typ
Unit
Test Conditions
CIN
Input Capacitance
4.5
pF
VCC = 5.0 V
CPD
Power Dissipation Capacitance
45
pF
VCC = 5.0 V
AC
244
ALYW
AC244
AWLYYWW
MC74AC244N
AWLYYWW
74AC244
AWLYWW
MARKING DIAGRAMS
PDIP–20
SO–20
TSSOP–20
EIAJ–20
ACT
244
ALYW
ACT244
AWLYYWW
MC74ACT244N
AWLYYWW
74ACT244
AWLYWW
A
= Assembly Location
WL, L
= Wafer Lot
YY, Y
= Year
WW, W = Work Week




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