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CD54HC221_07 Datasheet, PDF (7/22 Pages) Texas Instruments – High-Speed CMOS Logic Dual Monostable Multivibrator with Reset
◁
CD54HC221, CD74HC221, CD74HCT221
Switching Specifications Input tr, tf = 6ns (Continued)
PARAMETER
Propagation Delay,
R to Q
TEST
25oC
SYMBOL CONDITIONS VCC (V) MIN TYP MAX
tPLH
CL = 50pF
2
-
- 160
4.5
-
-
32
-40oC TO
85oC
MIN MAX
-
200
-
40
-55oC TO
125oC
MIN MAX UNITS
-
240 ns
-
48
ns
6
-
-
27
-
34
-
41
ns
Propagation Delay,
R to Q
tPHL
CL = 50pF
2
-
-
180
-
225
-
270 ns
4.5
-
-
36
-
45
-
54
ns
6
-
-
31
-
38
-
46
ns
Output Transition Time
tTLH, tTHL CL = 50pF
2
-
-
75
-
95
-
110 ns
4.5
-
-
15
-
19
-
22
ns
6
-
-
13
-
16
-
19
ns
Input Capacitance
Pulse Width Match Between
Circuits in the Same Package
CX = 1000pF, RX = 10kΩ
Power Dissipation Capacitance
(Notes 4, 5)
CIN
CPD
-
-
-
-
10
-
10
-
10
pF
-
4.5 to
-
±2
-
-
-
-
-
%
5.5
-
5
- 166 -
-
-
-
-
pF
HCT TYPES
Propagation Delay,
Trigger A, B, R to Q
Propagation Delay,
Trigger A, B, R to Q
Propagation Delay,
R to Q
tPLH
CL = 50pF
4.5
CL = 15pF
5
tPHL
CL = 50pF
4.5
CL = 15pF
5
tPLH
CL = 50pF
4.5
-
-
42
-
-
-
-
18
-
-
-
-
-
-
34
-
43
-
-
14
-
-
-
-
-
-
38
-
-
-
63
ns
-
ns
51
ns
-
ns
57
ns
Propagation Delay,
R to Q
tPHL
CL = 50pF
4.5
-
-
37
-
-
-
56
ns
Output Transition Time
tTLH, tTHL CL = 50pF
2
-
-
75
-
95
-
110 ns
4.5
-
-
15
-
19
-
22
ns
6
-
-
13
-
16
-
19
ns
Input Capacitance
Pulse Width Match Between
Circuits in the Same Package
CX = 1000pF, RX = 10kΩ
Power Dissipation Capacitance
(Notes 4, 5)
CIN
CPD
-
-
-
-
10
-
10
-
10
pF
-
4.5 to
-
±2
-
-
-
-
-
%
5.5
-
5
- 166 -
-
-
-
-
pF
NOTES:
4. CPD is used to determine the dynamic power consumption, per multivibrator.
5. PD = (CPD + CL) VCC2 fi + Σ where fi = input frequency, fo = output frequency, CL = output load capacitance, VCC = supply voltage.
7
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