MC74HC4049D Datasheet, PDF (3/6 Pages) Motorola, Inc – Hex Buffers/Logic-Level Down Converters

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
MC54/74HC4049 MC54/74HC4050
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
85
105
130
ns
17
21
26
14
18
22
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 Buffer)*
27
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
INPUT A
tPHL
OUTPUT Y
90%
50%
10%
90%
50%
10%
tTHL
tf
VCC
GND
tPLH
tTLH
Figure 1a. Switching Waveforms (HC4049)
tr
INPUT A
tPLH
OUTPUT Y
90%
50%
10%
90%
50%
10%
tTLH
tf
VCC
GND
tPHL
tTHL
Figure 1b. Switching Waveforms (HC4050)
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
* Includes all probe and jig capacitance
Figure 2. Test Circuit
High–Speed CMOS Logic Data
3
DL129 — Rev 6
MOTOROLA