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CD74HC123NSR

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Texas Instruments

HIGH SPEED CMOS LOGIC DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS WITH RESET

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SOP (NS)
Integrated Circuits (ICs)

CD74HC123NSR

Active
Texas Instruments

HIGH SPEED CMOS LOGIC DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS WITH RESET

Technical Specifications

Parameters and characteristics for this part

SpecificationCD74HC123NSR
Current - Output High, Low [custom]5.2 mA
Current - Output High, Low [custom]5.2 mA
Independent Circuits2
Logic TypeMonostable
Mounting TypeSurface Mount
Operating Temperature [Max]125 °C
Operating Temperature [Min]-55 °C
Package / Case0.209 "
Package / Case16-SOIC
Package / Case5.3 mm
Propagation Delay25 ns
Schmitt Trigger InputFalse
Supplier Device Package16-SO
Voltage - Supply [Max]6 V
Voltage - Supply [Min]2 V

CD74HC123 Series

High Speed CMOS Logic Dual Retriggerable Monostable Multivibrators with Reset

PartCurrent - Output High, Low [custom]Current - Output High, Low [custom]Schmitt Trigger InputOperating Temperature [Min]Operating Temperature [Max]Package / CasePackage / Case [x]Package / Case [y]Mounting TypeVoltage - Supply [Min]Voltage - Supply [Max]Supplier Device PackageLogic TypePropagation DelayIndependent CircuitsPackage / CasePackage / Case
16 SOIC
Texas Instruments
5.2 mA
5.2 mA
-55 °C
125 °C
16-SOIC
0.154 in
3.9 mm
Surface Mount
2 V
6 V
16-SOIC
Monostable
25 ns
2
16 SOIC
Texas Instruments
5.2 mA
5.2 mA
-55 °C
125 °C
16-SOIC
0.154 in
3.9 mm
Surface Mount
2 V
6 V
16-SOIC
Monostable
25 ns
2
16 SOIC
Texas Instruments
5.2 mA
5.2 mA
-55 °C
125 °C
16-SOIC
0.154 in
3.9 mm
Surface Mount
2 V
6 V
16-SOIC
Monostable
25 ns
2
16 SOIC
Texas Instruments
5.2 mA
5.2 mA
-55 °C
125 °C
16-SOIC
0.154 in
3.9 mm
Surface Mount
2 V
6 V
16-SOIC
Monostable
25 ns
2
TSSOP (PW)
Texas Instruments
5.2 mA
5.2 mA
-55 °C
125 °C
16-TSSOP
0.173 in
4.4 mm
Surface Mount
2 V
6 V
16-TSSOP
Monostable
25 ns
2
16-DIP SOT38-1
Texas Instruments
5.2 mA
5.2 mA
-55 °C
125 °C
16-DIP
Through Hole
2 V
6 V
16-PDIP
Monostable
25 ns
2
0.3 in
7.62 mm
CD4555BE
Texas Instruments
5.2 mA
5.2 mA
-55 °C
125 °C
16-SOIC
Surface Mount
2 V
6 V
16-SO
Monostable
25 ns
2
0.209 "
5.3 mm
SOP (NS)
Texas Instruments
5.2 mA
5.2 mA
-55 °C
125 °C
16-SOIC
Surface Mount
2 V
6 V
16-SO
Monostable
25 ns
2
0.209 "
5.3 mm
16 SOIC
Texas Instruments
5.2 mA
5.2 mA
-55 °C
125 °C
16-SOIC
0.154 in
3.9 mm
Surface Mount
2 V
6 V
16-SOIC
Monostable
25 ns
2
16-TSSOP
Texas Instruments
5.2 mA
5.2 mA
-55 °C
125 °C
16-TSSOP
0.173 in
4.4 mm
Surface Mount
2 V
6 V
16-TSSOP
Monostable
25 ns
2

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyCut Tape (CT) 1$ 1.20
10$ 0.75
25$ 0.63
100$ 0.50
250$ 0.43
500$ 0.39
1000$ 0.36
Digi-Reel® 1$ 1.20
10$ 0.75
25$ 0.63
100$ 0.50
250$ 0.43
500$ 0.39
1000$ 0.36
Tape & Reel (TR) 2000$ 0.33
4000$ 0.30
6000$ 0.29
10000$ 0.28
14000$ 0.27
20000$ 0.26
Texas InstrumentsLARGE T&R 1$ 0.56
100$ 0.38
250$ 0.29
1000$ 0.20

Description

General part information

CD74HC123 Series

The ’HC123, ’HCT123, CD74HC423 and CD74HCT423 are dual monostable multivibrators with resets. They are all retriggerable and differ only in that the 123 types can be triggered by a negative to positive reset pulse; whereas the 423 types do not have this feature. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of Rx and CXprovides a wide range of output pulse widths from the Q and Q\ terminals. Pulse triggering on the A\ and B inputs occur at a particular voltage level and is not related to the rise and fall times of the trigger pulses.

Once triggered, the output pulse width may be extended by retriggering inputs A\ and B. The output pulse can be terminated by a LOW level on the Reset (R) pin. Trailing edge triggering (A)\ and leading edge triggering (B) inputs are provided for triggering from either edge of the input pulse. If either Mono is not used each input on the unused device (A\, B, and R\) must be terminated high or low.

The minimum value of external resistance, Rx is typically 5k. The minimum value external capacitance, CX, is 0pF. The calculation for the pulse width is tW= 0.45 RXCXat VCC= 5V.