DM74123 View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
Manufacturer
DM74123 Datasheet PDF : 5 Pages
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Absolute Maximum Ratings(Note 1)
Supply Voltage
Input Voltage
Operating Free Air Temperature Range
Storage Temperature
7V
5.5V
0°C to +70°C
−65°C to +150°C
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Recommended Operating Conditions
Symbol
Parameter
VCC
Supply Voltage
VIH
HIGH Level Input Voltage
VIL
LOW Level Input Voltage
IOH
HIGH Level Output Current
IOL
LOW Level Output Current
tW
Pulse Width
A or B HIGH
(Note 2)
A or B LOW
Clear LOW
TWQ
(Min)
Minimum Width of
Pulse at Q (Note 2)
A or B
REXT
External Timing Resistor
CEXT
External Timing Capacitance
CWIRE
Wiring Capacitance
at REXT/CEXT Terminal (Note 2)
TA
Free Air Operating Temperature
Note 2: TA = 25°C and VCC = 5V.
Min
4.75
2
40
40
40
5
0
Nom
5
No Restriction
Max
5.25
0.8
−0.8
16
65
50
50
70
Units
V
V
V
mA
mA
ns
ns
kΩ
µF
pF
°C
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Typ
Min
Max
(Note 3)
Units
VI
Input Clamp Voltage
VCC = Min, II = −12 mA
VOH
HIGH Level
VCC = Min, IOH = Max
Output Voltage
VIL = Max, VIH = Min
VOL
LOW Level
VCC = Min, IOL = Max
Output Voltage
VIH = Min, VIL = Max
II
Input Current @ Max Input Voltage VCC = Max, VI = 5.5V
IIH
HIGH Level
VCC = Max
Input Current
VI = 2.4V
IIL
Low Level
VCC = Max, VI = 0.4V
Input Current
−1.5
V
2.5
3.4
V
Data
Clear
Clear
Data
0.2
0.4
V
1
mA
40
µA
80
−3.2
mA
−1.6
IOS
Short Circuit Output Current
ICC
Supply Current
Note 3: All typicals are at VCC = 5V, TA = 25°C.
VCC = Max (Note 4)
VCC = Max (Note 5)(Note 6)
−10
−40
mA
46
66
mA
Note 4: Not more than one output should be shorted at a time.
Note 5: Quiescent ICC is measured (after clearing) with 2.4V applied to all clear and A inputs, B inputs grounded, all outputs OPEN, CEXT = 0.02 µF,
and REXT = 25 KΩ.
Note 6: ICC is measured in the triggered state with 2.4V applied to all clear and B inputs, A inputs grounded, all outputs OPEN, CEXT = 0.02 µF,
and REXT = 25 kΩ.
3
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