CD54HC123 Datasheet, PDF (6/16 Pages) Texas Instruments – High-Speed CMOS Logic Dual Retriggerable Monostable Multivibrators with Resets

CD54/74HC123, CD54/74HCT123, CD74HC423, CD74HCT423
Switching Specifications Input t_r, t_f = 6ns, R_X = 10KΩ, C_X = 0
PARAMETER
HC TYPES
Trigger Propagation Delay
A, B, R to Q
TEST
SYMBOL CONDITIONS V_CC (V) MIN
t_PLH
C_L = 50pF
2
-
25^oC
TYP MAX
- 300
-40^oC TO
85^oC
MIN MAX
-
375
4.5
-
-
60
-
75
A, B, R to Q
C_L = 15pF
5
-
25
-
-
-
C_L = 50pF
6
-
-
51
-
64
t_PHL
C_L = 50pF
2
-
-
320
-
400
4.5
-
-
64
-
80
Reset Propagation Delay
R to Q or Q
C_L = 15pF
5
-
26
-
-
-
C_L = 50pF
6
-
-
54
-
68
t_PHL, t_PLH C_L = 50pF
2
-
-
215
-
270
4.5
-
-
43
-
54
6
-
-
37
-
46
Output Transition Time
t_THL, t_TLH C_L = 50pF
2
-
-
75
-
95
4.5
-
-
15
-
19
6
-
-
13
-
16
Output Pulse Width
-
R_X = 10KΩ, C_X = 10nF
-
5
-
45
-
-
-
Pulse Width Match Between
-
Circuits In the Same Package
R_X = 10KΩ, C_X = 10pF
-
5
-
±2
-
-
-
Power Dissipation Capacitance C_PD
C_L = 15pF
5
-
-
-
-
-
(Note 4)
Input Capacitance
HCT TYPES
Trigger Propagation Delay
A, B, R to Q
C_IN
C_L = 50pF
-
10
-
10
-
10
t_PLH
C_L = 50pF
4.5
-
-
60
-
75
C_L = 15pF
5
-
25
-
-
-
-55^oC TO
125^oC
MIN MAX
-
450
-
90
-
-
-
76
-
480
-
96
-
-
-
82
-
325
-
65
-
55
-
110
-
22
-
19
-
-
-
-
-
-
-
10
-
90
-
-
UNIT
S
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
%
pF
pF
ns
ns
A, B, R to Q
t_PHL
C_L = 50pF
4.5
-
-
68
-
85
-
102 ns
Reset Propagation Delay
R to Q or Q
C_L =15pF
5
-
27
-
-
-
-
t_PHL, t_PLH C_L = 50pF
4.5
-
-
48
-
60
-
Output Transition Time
t_THL, t_TLH C_L = 50pF
4.5
-
-
15
-
19
-
Output Pulse Width
-
R_X = 10KΩ, C_X = 10nF
-
5
-
45
-
-
-
-
-
ns
72
ns
22
ns
-
µs
6