CD54HC221_07 Datasheet, PDF (6/22 Pages) Texas Instruments – High-Speed CMOS Logic Dual Monostable Multivibrator with Reset

CD54HC221, CD74HC221, CD74HCT221
Prerequisite For Switching Function (Continued)
25^oC
-40^oC TO 85^oC -55^oC TO 125^oC
PARAMETER
Input Pulse Width
Reset
SYMBOL V_CC (V) MIN
TYP
MAX
MIN
MAX
MIN
MAX UNITS
t_WL
2
70
-
-
90
-
105
-
ns
4.5
14
-
-
18
-
21
-
ns
6
12
-
-
15
-
18
-
ns
Recovery Time
R to A or B
t_SU
2
0
-
-
0
-
0
-
ns
4.5
0
-
-
0
-
0
-
ns
6
0
-
-
0
-
0
-
ns
Output Pulse Width Q or Q
C_X = 0.1µF R_X = 10kΩ
Output Pulse Width Q or Q
C_X = 28pF, R_X = 2kΩ
C_X = 1000pF, R_X = 2kΩ
C_X = 1000pF, R_X = 10kΩ
HCT TYPES
Input Pulse Width
A
t_W
5
630
-
770
602
798
595
805
µs
t_W
4.5
-
140
-
-
-
-
-
ns
t_W
4.5
-
1.5
-
-
-
-
-
µs
t_W
4.5
-
7
-
-
-
-
-
µs
t_WL
4.5
14
-
-
18
-
21
-
ns
Input Pulse Width
B
t_WH
4.5
14
-
-
18
-
21
-
ns
Input Pulse Width
Reset
t_WL
4.5
18
-
-
23
-
27
-
ns
Recovery Time
R to A or B
t_SU
4.5
0
-
-
0
-
0
-
ns
Output Pulse Width Q or Q
C_X = 0.1µF R_X = 10kΩ
Output Pulse Width Q or Q
C_X = 28pF, R_X = 2kΩ
C_X = 1000pF, R_X = 2kΩ
C_X = 1000pF, R_X = 10kΩ
t_W
5
630
-
770
602
798
595
805
µs
t_W
4.5
-
140
-
-
-
-
-
ns
t_W
4.5
-
1.5
-
-
-
-
-
µs
t_W
4.5
-
7
-
-
-
-
-
µs
Switching Specifications Input t_r, t_f = 6ns
PARAMETER
TEST
25^oC
SYMBOL CONDITIONS V_CC (V) MIN TYP MAX
-40^oC TO
85^oC
MIN MAX
-55^oC TO
125^oC
MIN MAX UNITS
HC TYPES
Propagation Delay,
Trigger A, B, R to Q
t_PLH
C_L = 50pF
2
-
-
210
-
265
-
315 ns
C_L = 50pF
4.5
-
-
42
-
53
-
63
ns
C_L = 50pF
6
-
-
36
-
45
-
54
ns
C_L = 15pF
5
-
18
-
-
-
-
-
ns
Propagation Delay,
Trigger A, B, R to Q
t_PHL
C_L = 50pF
2
-
-
170
-
215
-
255 ns
C_L = 50pF
4.5
-
-
34
-
43
-
51
ns
C_L = 50pF
6
-
-
29
-
37
-
43
ns
C_L = 15pF
5
-
14
-
-
-
-
-
ns
6