MC74HC42D データシートの表示（PDF） - Motorola => Freescale
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MC74HC42D 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, Input A to Output Y
(Figures 1 and 2)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTLH,
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTHL
Maximum Output Transition Time, Any Output
(Figures 1 and 2)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Cin
Maximum Input Capacitance
MC74HC42
VCC
V
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
150
190
225
ns
30
38
45
26
33
38
75
95
110
ns
15
19
22
13
16
19
10
10
10
pF
NOTES:
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 can 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)*
65
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).
INPUT A
OUTPUT Y
tTHL
tr
90%
50%
10%
tPHL
90%
50%
10%
tf
VCC
GND
tPLH
tTLH
Figure 1. Switching Waveforms
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
* Includes all probe and jig capacitance
Figure 2. Test Circuit
FUNCTION TABLE
Inputs
Outputs
A3 A2 A1 A0 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9
L L L L LHHHHHHHHH
L L LHHLHHHHHHHH
L LHLHHLHHHHHHH
L LHHHHHLHHHHHH
LHL LHHHHLHHHHH
L H L HHHHHH L HHHH
L HH L HHHHHH L HHH
L HHHHHHHHHH L HH
HL L LHHHHHHHHLH
HL LHHHHHHHHHHL
H L H L HHHHHHHHHH
H L HHHHHHHHHHHH
HHL LHHHHHHHHHH
HH L HHHHHHHHHHH
HHH L HHHHHHHHHH
HHHHHHHHHHHHHH
High–Speed CMOS Logic Data
3
DL129 — Rev 6
MOTOROLA
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