HC253 데이터 시트보기 (PDF) - System Logic Semiconductor
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HC253 Datasheet PDF : 5 Pages
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SL74HC253
AC ELECTRICAL CHARACTERISTICS(CL=50pF,Input tr=tf=6.0 ns)
Symbol
Parameter
tPLH, tPHL Maximum Propagation Delay, Data to
Output Y (Figures 1 and 3)
tPLH, tPHL Maximum Propagation Delay , Address to
Output Y (Figures 1 and 3)
tPLZ, tPHZ Maximum Propagation Delay ,Output Enable to
Output Y (Figures 2 and 4)
tPZL, tPZH Maximum Propagation Delay ,Output Enable to
Output Y (Figures 2 and 4)
tTLH, tTHL Maximum Output Transition Time, Any Output
(Figures 1 and 3)
CIN
Maximum Input Capacitance
COUT Maximum Three-State Output Capacitance
(Output in High-Impedance State)
VCC
Guaranteed Limit
V 25 °C to ≤85°C ≤125°C Unit
-55°C
2.0 140
175
210
ns
4.5 28
35
42
6.0 24
30
36
2.0 175
220
265
ns
4.5 35
44
53
6.0 30
37
45
2.0 150
190
225
ns
4.5 30
38
45
6.0 26
33
38
2.0 100
125
150
ns
4.5 20
25
30
6.0 17
21
26
2.0 75
95
110
ns
4.5 15
19
22
6.0 13
16
19
-
10
10
10
pF
-
15
15
15
pF
Power Dissipation Capacitance (Per Muliplexer)
CPD Used to determine the no-load dynamic power
consumption:
PD=CPDVCC2f+ICCVCC
Typical @25°C,VCC=5.0 V
31
pF
Figure 1. Switching Waveforms
SLS
System Logic
Semiconductor
Figure 2. Switching Waveforms
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