74LVC1G123 Series

Single retriggerable monostable multivibrator with Schmitt-trigger inputs

Catalog(8 parts)

Part	Supplier Device Package	Propagation Delay▲▼	Independent Circuits▲▼	Logic Type	Mounting Type	Voltage - Supply▲▼	Voltage - Supply▲▼	Current - Output High, Low▲▼	Current - Output High, Low▲▼	Operating Temperature▲▼	Operating Temperature▲▼	Package / Case	Package / Case▲▼	Package / Case▲▼
Texas Instruments 74LVC1G123DCTRG4 Monostable Multivibrator 18.5 ns SM8	SM8	1.8499999754340024e-8 s	1 ul	Monostable	Surface Mount	1.649999976158142 V	5.5 V	0.03200000151991844 A	0.03200000151991844 A	125 °C	-40 °C
Texas Instruments 74LVC1G123DCTTE4 Monostable Multivibrator 18.5 ns SM8	SM8	1.8499999754340024e-8 s	1 ul	Monostable	Surface Mount	1.649999976158142 V	5.5 V	0.03200000151991844 A	0.03200000151991844 A	125 °C	-40 °C
Texas Instruments SN74LVC1G123YZPR Monostable Multivibrator 18.5 ns 8-DSBGA	8-DSBGA	1.8499999754340024e-8 s	1 ul	Monostable	Surface Mount	1.649999976158142 V	5.5 V	0.03200000151991844 A	0.03200000151991844 A	85 °C	-40 °C	8-XFBGA, DSBGA
Texas Instruments 74LVC1G123DCURE4 Monostable Multivibrator 18.5 ns 8-VSSOP		1.8499999754340024e-8 s	1 ul	Monostable	Surface Mount	1.649999976158142 V	5.5 V	0.03200000151991844 A	0.03200000151991844 A	125 °C	-40 °C	8-VFSOP	0.002311399905011058 m	0.002300000051036477 m
Texas Instruments SN74LVC1G123DCTR Monostable Multivibrator 18.5 ns SM8	SM8	1.8499999754340024e-8 s	1 ul	Monostable	Surface Mount	1.649999976158142 V	5.5 V	0.03200000151991844 A	0.03200000151991844 A	125 °C	-40 °C
Texas Instruments 74LVC1G123DCUTG4 Monostable Multivibrator 18.5 ns 8-VSSOP		1.8499999754340024e-8 s	1 ul	Monostable	Surface Mount	1.649999976158142 V	5.5 V	0.03200000151991844 A	0.03200000151991844 A	125 °C	-40 °C	8-VFSOP	0.002311399905011058 m	0.002300000051036477 m
Texas Instruments SN74LVC1G123DCUT Monostable Multivibrator 18.5 ns 8-VSSOP		1.8499999754340024e-8 s	1 ul	Monostable	Surface Mount	1.649999976158142 V	5.5 V	0.03200000151991844 A	0.03200000151991844 A	125 °C	-40 °C	8-VFSOP	0.002311399905011058 m	0.002300000051036477 m
Texas Instruments SN74LVC1G123YEPR Monostable Multivibrator 18.5 ns 8-VSSOP		1.8499999754340024e-8 s	1 ul	Monostable	Surface Mount	1.649999976158142 V	5.5 V	0.03200000151991844 A	0.03200000151991844 A	85 °C	-40 °C	8-VFSOP	0.002311399905011058 m	0.002300000051036477 m

Key Features

• Available in the Texas Instruments NanoFree™ PackageSupports 5V VCC OperationInputs Accept Voltages to 5.5VMax tpd of 8ns at 3.3VSupports Mixed-Mode Voltage Operation on All PortsSupports Down Translation to VCCSchmitt-Trigger Circuitry on A and B Inputs for Slow Input Transition RatesEdge Triggered From Active-High or Active-Low Gated Logic InputsRetriggerable for Very Long Output Pulses, Up to 100% Duty CycleOverriding Clear Terminates Output PulseGlitch-Free Power-Up Reset on OutputsIoff Supports Live Insertion, Partial-Power-Down Mode, and Back-Drive ProtectionLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Protection Exceeds JESD 222000V Human-Body Model (A114-A)200V Machine Model (A115-A)1000V Charged-Device Model (C101)Available in the Texas Instruments NanoFree™ PackageSupports 5V VCC OperationInputs Accept Voltages to 5.5VMax tpd of 8ns at 3.3VSupports Mixed-Mode Voltage Operation on All PortsSupports Down Translation to VCCSchmitt-Trigger Circuitry on A and B Inputs for Slow Input Transition RatesEdge Triggered From Active-High or Active-Low Gated Logic InputsRetriggerable for Very Long Output Pulses, Up to 100% Duty CycleOverriding Clear Terminates Output PulseGlitch-Free Power-Up Reset on OutputsIoff Supports Live Insertion, Partial-Power-Down Mode, and Back-Drive ProtectionLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Protection Exceeds JESD 222000V Human-Body Model (A114-A)200V Machine Model (A115-A)1000V Charged-Device Model (C101)

Description

The SN74LVC1G123 device is a single retriggerable monostable multivibrator designed for 1.65V to 5.5V VCC operation. This monostable multivibrator features 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. Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input pulse. The A and B inputs have Schmitt triggers with sufficient hysteresis to handle slow input transition rates with jitter-free triggering at the outputs. The SN74LVC1G123 device is a single retriggerable monostable multivibrator designed for 1.65V to 5.5V VCC operation. This monostable multivibrator features 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. Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input pulse. The A and B inputs have Schmitt triggers with sufficient hysteresis to handle slow input transition rates with jitter-free triggering at the outputs.