Datasheet
www.ti.com
Timing Requirements
Timing Requirements
Switching Characteristics
SN74AHC123A-EP
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
SCLS703A – JULY 2006 – REVISED MARCH 2007
over recommended operating free-air temperature range, V
CC
= 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1 )
T
A
= 25 ° C
PARAMETER TEST CONDITIONS MIN MAX UNIT
MIN TYP MAX
CLR 5 5
t
w
Pulse duration ns
A or B trigger 5 5
R
ext
= 1 k Ω , C
ext
= 100 pF
(1)
76
(1)
ns
t
rr
Pulse retirgger time
R
ext
= 1 k Ω , C
ext
= 0.01 µ F
(1)
1.8
(1)
µ s
(1) See retriggering data in the application information section.
over recommended operating free-air temperature range, V
CC
= 5 V ± 0.5 V (unless otherwise noted) (see Figure 1 )
T
A
= 25 ° C
PARAMETER TEST CONDITIONS MIN MAX UNIT
MIN TYP MAX
CLR 5 5
t
w
Pulse duration ns
A or B trigger 5 5
R
ext
= 1 k Ω , C
ext
= 100 pF
(1)
59
(1)
ns
t
rr
Pulse retirgger time
R
ext
= 1 k Ω , C
ext
= 0.01 µ F
(1)
1.5
(1)
µ s
(1) See retriggering data in the application information section.
over recommended operating free-air temperature range, V
CC
= 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1 )
T
A
= 25 ° C
FROM TO
PARAMETER TEST CONDITIONS MIN MAX UNIT
(INPUT) (OUTPUT)
MIN TYP MAX
t
PLH
9.5
(1)
20.6
(1)
1
(1)
24
(1)
A or B Q or Q C
L
= 15 pF ns
t
PHL
10.2
(1)
20.6
(1)
1
(1)
24
(1)
t
PLH
7.5
(1)
15.8
(1)
1
(1)
18.5
(1)
CLR Q or Q C
L
= 15 pF ns
t
PHL
9.3
(1)
15.8
(1)
1
(1)
18.5
(1)
t
PLH
10
(1)
22.4
(1)
1
(1)
26
(1)
CLR trigger Q or Q C
L
= 15 pF ns
t
PHL
10.6
(1)
22.4
(1)
1
(1)
26
(1)
t
PLH
10.5 24.1 1 27.5
A or B Q or Q C
L
= 50 pF ns
t
PHL
11.8 24.1 1 27.5
t
PLH
8.9 19.3 1 22
CLR Q or Q C
L
= 50 pF ns
t
PHL
10.5 19.3 1 22
t
PLH
11 25.9 1 29.5
CLR trigger Q or Q C
L
= 50 pF ns
t
PHL
12.3 25.9 1 29.5
C
L
= 50 pF,
C
ext
= 28 µ F, 182 240 300 ns
R
ext
= 2 k Ω
C
L
= 50 pF,
t
w
(2)
Q or Q C
ext
= 0.01 µ F, 90 100 110 90 110 µ s
R
ext
= 10 k Ω
C
L
= 50 pF,
C
ext
= 0.1 µ F, 0.9 1 1.1 0.9 1.1 ms
R
ext
= 10 k Ω
∆ t
w
(3)
± 1%
(1) On products compliant to MIL-PRF-38535, this parameter is not production tested.
(2) t
w
= Pulse duration at Q and Q outputs
(3) ∆ t
w
= Output pulse-duration variation (Q and Q) between circuits in same package
5
Submit Documentation Feedback