MC74HC4078D 데이터 시트보기 (PDF) - Motorola => Freescale
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MC74HC4078D Datasheet PDF : 5 Pages
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ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Symbol
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPLH,
tPHL
Parameter
Maximum Propagation Delay, Any Input to Output Y
(Figures 1 and 3)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPLH,
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPHL
Maximum Propagation Delay, Any Input to Output X
(Figures 2 and 3)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTLH,
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTHL
Maximum Output Transition Time, Any Output
(Figures 1, 2, and 3)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Cin
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ NOTES:
Maximum Input Capacitance
MC74HC4078
VCC
V
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
—
Guaranteed Limit
v v – 55 to
25_C
85_C
125_C Unit
130
165
195
ns
26
33
39
22
28
33
140
175
210
ns
28
35
42
24
30
36
75
95
110
ns
15
19
22
13
16
19
10
10
10
pF
1. For propagation delays with loads other than 50 pF, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).
2. Information on typical parametric values ran be found in Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).
Typical @ 25°C, VCC = 5.0 V
CPD
Power Dissipation Capacitance (Per {Package)*
29
pF
* Used to determine the no–load dynamic power consumption: PD = CPD VCC2f + ICC VCC. For load considerations, see Chapter 2 of the
Motorola High–Speed CMOS Data Book (DL129/D).
tr
ANY INPUT
tPHL
OUTPUT Y
90%
50%
10%
90%
50%
10%
tTHL
Figure 1.
SWITCHING WAVEFORMS
tf
VCC
GND
tPLH
tTLH
tr
ANY INPUT
tPLH
OUTPUT X
90%
50%
10%
90%
50%
10%
tTLH
Figure 2.
tf
VCC
GND
tPHL
tTHL
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
* Includes all probe and jig capacitance
Figure 1. Test Circuit
High–Speed CMOS Logic Data
3
DL129 — Rev 6
MOTOROLA
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