74HCT423DB-T NXP Semiconductors, 74HCT423DB-T Datasheet - Page 10

• Manufacturer Part Number: 74HCT423DB-T
• Manufacturer: NXP Semiconductors

Specifications of 74HCT423DB-T

• Logic Family: HCT
• High Level Output Current: -4mA
• Low Level Output Current: 4mA
• Quiescent Current: 8nA
• Number Of Elements: 2
• Operating Temperature Classification: Automotive
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (typ): 5V
• Operating Temperature (min): -40C
• Operating Temperature (max): 125C
• Technology: CMOS
• Abs. Propagation Delay Time: 77ns
• Operating Supply Voltage (min): 4.5V
• Lead Free Status / RoHS Status: Compliant

NXP Semiconductors
Table 7.
GND = 0 V; test circuit see
[1]
[2]
[3]
[4]
[5]
[6]
74HC_HCT423_3
Product data sheet
Symbol Parameter
C
PD
t
t
For other R
t
t
R
C
K = 0.55 for V
Inherent test jig and pin capacitance at pins 15 and 7 (nREXT/CEXT) is 7 pF.
The time to retrigger the monostable multivibrator depends on the values of R
extended when the time between the active-going edges of the trigger input pulses meets the minimum retrigger time.
If C
t
t
C
R
Inherent test jig and pin capacitance at pins 15 and 7 (nREXT/CEXT) is 7 pF.
When the device is powered-up, initiate the device via a reset pulse, when C
C
P
f
f
C
V
N = number of inputs switching;
pd
t
W
W
rtrig
rtrig
i
o
D
CC
EXT
EXT
EXT
EXT
PD
L
is the same as t
= input frequency in MHz;
= output frequency in MHz;
(C
= K
= output pulse width in ns;
is the same as t
= output load capacitance in pF;
= C
EXT
= retrigger time in ns;
= 30 + 0.19
is used to determine the dynamic power dissipation (P
= supply voltage in V;
L
= external resistor in k ;
= external capacitor in pF;
= external capacitor in pF;
= external resistor in k .
power
dissipation
capacitance
PD
> 10 pF, the next formula (at V
V
Dynamic characteristics
R
CC
EXT
EXT
V
2
CC
CC
and C
f
2
o
C
= 2.0 V and 0.45 for V
) = sum of outputs.
THL
EXT
R
PHL
f
EXT
i
EXT
and t
(typ.), where:
N +
and t
Conditions
per package; V
combinations see
Figure
C
TLH
EXT
PLH
(C
.
0.9
.
L
12.
+ 13
V
CC
CC
…continued
CC
2
R
= 5.0 V) for the set-up time of a retrigger pulse is valid:
I
= 5.0 V; see
EXT
f
o
= GND to V
Figure
); where:
1.05
(typ.); where:
8. If C
Rev. 03 — 24 July 2008
Figure
CC
EXT
D
> 10 pF, the next formula is valid:
in W):
9.
1.5 V
Dual retriggerable monostable multivibrator with reset
[6]
EXT
EXT
Min
< 50 pF.
74HC423; 74HCT423
-
and C
25 C
Typ
56
EXT
. The output pulse width will only be
Max Min Max Min Max
-
40 C to
+85 C
-
-
© NXP B.V. 2008. All rights reserved.
+125 C
40 C to
-
-
10 of 23
Unit
pF