74HCT423D,118 NXP Semiconductors, 74HCT423D,118 Datasheet - Page 10

• Manufacturer Part Number: 74HCT423D,118
• Description: IC DUAL RETRIG MULTIVIB 16SOIC
• Manufacturer: NXP Semiconductors
• Series: 74HCTr

Specifications of 74HCT423D,118

• Logic Type: Monostable
• Independent Circuits: 2
• Schmitt Trigger Input: Yes
• Propagation Delay: 22ns
• Current - Output High, Low: 4mA, 4mA
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 74HCT423D-T; 74HCT423D-T; 933715350118

NXP Semiconductors
Table 7.
GND = 0 V; test circuit see
[1]
[2]
[3]
[4]
[5]
[6]
74HC_HCT423
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;
Σ(C
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;
= K × R
= output pulse width in ns;
is the same as t
= output load capacitance in pF;
= C
EXT
L
= retrigger time in ns;
= 30 + 0.19 × R
is used to determine the dynamic power dissipation (P
= supply voltage in V;
× V
= external resistor in kΩ;
= external capacitor in pF;
= external capacitor in pF;
= external resistor in kΩ.
power
dissipation
capacitance
PD
> 10 pF, the next formula (at V
Dynamic characteristics
CC
× V
EXT
2
EXT
× f
CC
CC
× C
o
and C
2
) = sum of outputs.
= 2.0 V and 0.45 for V
× f
THL
EXT
PHL
EXT
i
× N + Σ(C
and t
EXT
(typ.), where:
and t
× C
Conditions
per package; V
combinations see
Figure
TLH
EXT
PLH
.
0.9
L
.
× V
12.
+ 13 × R
CC
CC
2
…continued
CC
× f
= 5.0 V) for the set-up time of a retrigger pulse is valid:
I
= 5.0 V; see
EXT
o
All information provided in this document is subject to legal disclaimers.
); where:
= GND to V
Figure
1.05
(typ.); where:
8. If C
Rev. 4 — 18 March 2011
Figure
CC
EXT
D
− 1.5 V
in μW):
> 10 pF, the next formula is valid:
9.
Dual retriggerable monostable multivibrator with reset
[6]
EXT
EXT
Min
74HC423; 74HCT423
< 50 pF.
-
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. 2011. All rights reserved.
−40 °C to
+125 °C
-
-
10 of 24
Unit
pF