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74AHCT123 Series

Dual Retriggerable Monostable Multivibrators

Manufacturer: Texas Instruments

Catalog(5 parts)

PartSchmitt Trigger Input▲▼Supplier Device PackagePackage / Case▲▼Package / CasePropagation Delay▲▼Current - Output High, Low▲▼Current - Output High, Low▲▼Operating Temperature▲▼Operating Temperature▲▼Logic TypeVoltage - Supply▲▼Voltage - Supply▲▼Independent Circuits▲▼Mounting TypePackage / Case▲▼Package / Case▲▼Package / Case▲▼Package / Case▲▼
Texas Instruments
SN74AHCT123AN
Monostable Multivibrator 5.3 ns 16-PDIP
16-PDIP
0.007619999814778566 m, 0.007619999814778566 m
16-DIP
5.2999999944347564e-9 s
0.00800000037997961 A
0.00800000037997961 A
-40 °C
85 °C
Monostable
5.5 V
4.5 V
2 ul
Through Hole
Texas Instruments
SN74AHCT123ADR
Monostable Multivibrator 5.3 ns 16-SOIC
16-SOIC
0.003911599982529879 m, 3.900000095367432 ul
16-SOIC
5.2999999944347564e-9 s
0.00800000037997961 A
0.00800000037997961 A
-40 °C
85 °C
Monostable
5.5 V
4.5 V
2 ul
Surface Mount
Texas Instruments
SN74AHCT123ADBR
Monostable Multivibrator 5.3 ns 16-SSOP
16-SSOP
16-SSOP
5.2999999944347564e-9 s
0.00800000037997961 A
0.00800000037997961 A
-40 °C
85 °C
Monostable
5.5 V
4.5 V
2 ul
Surface Mount
0.005308600142598152 m
0.0052999998442828655 m
Texas Instruments
SN74AHCT123AD
Monostable Multivibrator 5.3 ns 16-SOIC
16-SOIC
0.003911599982529879 m, 3.900000095367432 ul
16-SOIC
5.2999999944347564e-9 s
0.00800000037997961 A
0.00800000037997961 A
-40 °C
85 °C
Monostable
5.5 V
4.5 V
2 ul
Surface Mount
Texas Instruments
SN74AHCT123APWR
Monostable Multivibrator 5.3 ns 16-TSSOP
16-TSSOP
16-TSSOP
5.2999999944347564e-9 s
0.00800000037997961 A
0.00800000037997961 A
-40 °C
85 °C
Monostable
5.5 V
4.5 V
2 ul
Surface Mount
0.004394200164824724 m
0.004399999976158142 m

Key Features

• Inputs are TTL-voltage compatibleSchmitt-trigger circuitry on A , B, and CLR inputs for slow input transition ratesEdge triggered from active-high or active-low gated logic inputsRetriggerable for very long output pulsesOverriding clear terminates output pulseLatch-up performance exceeds 100mA per JESD 78, class IIInputs are TTL-voltage compatibleSchmitt-trigger circuitry on A , B, and CLR inputs for slow input transition ratesEdge triggered from active-high or active-low gated logic inputsRetriggerable for very long output pulsesOverriding clear terminates output pulseLatch-up performance exceeds 100mA per JESD 78, class II

Description

AI
These edge-triggered multivibrators feature output pulse-duration control by three methods. In the first method, the A input is low, and the B input goes high. In the second method, the B input is high, and the A input goes low. In the third method, the A input is low, the B input is high, and the clear (CLR) input goes high. The output pulse duration is programmed by selecting external resistance and capacitance values. The external timing capacitor must be connected between Cext and Rext/Cext (positive) and an external resistor connected between Rext/Cext and VCC. To obtain variable pulse durations, connect an external variable resistance between Rext/Cext and VCC. The output pulse duration also can be reduced by taking CLR low. These edge-triggered multivibrators feature output pulse-duration control by three methods. In the first method, the A input is low, and the B input goes high. In the second method, the B input is high, and the A input goes low. In the third method, the A input is low, the B input is high, and the clear (CLR) input goes high. The output pulse duration is programmed by selecting external resistance and capacitance values. The external timing capacitor must be connected between Cext and Rext/Cext (positive) and an external resistor connected between Rext/Cext and VCC. To obtain variable pulse durations, connect an external variable resistance between Rext/Cext and VCC. The output pulse duration also can be reduced by taking CLR low.