Monostable multivibrators, also known as one-shot multivibrators, are a type of electronic circuit that can be used as a timer. They have one stable and one unstable state. The unstable state is caused by a trigger pulse. This state is transient, so the circuit always returns to stability after a fixed time has elapsed.
Generally, monostable multivibrator circuits are composed of two transistors, coupled with one resistor-capacitor network and one resistor network. These networks are what determines the length of time before the circuit returns to its stable state, after being triggered.
What are monostable multivibrators used for? Monostable multivibrators are used to produce a specific timed delay within a circuit. Therefore, they can broadly be used as timers or as pulse detectors in electronic equipment.
Types of monostable multivibrators There are two types of monostable multivibrators:
Retriggerable monostable multivibrators will remain in the unstable state with repeated application of the trigger pulse.
Non-retriggerable monostable multivibrators are unaffected by further trigger pulses, and will remain in the unstable state only for the predetermined period of time.
Description:
Texas Instruments range of standard Logic Gates from
the 74HCT Family of CMOS Logic ICs. Inputs of the 74HCT family are 74LSTTL compatible, and the products use silicon gate CMOS technology to achieve operating speeds similar to the LSTTL family but with the low power consumption of standard CMOS integrated ...
Description:
Dual retriggerable precision monostable multivibrator, The 74HC4538 is
a dual retriggerable-resettable monostable multivibrator. Each multivibrator has two trigger/retrigger inputs (nA and n B), a direct reset input (n CD), two complementary outputs (nQ and n Q), and two pins (n REXT/CEXT and n CEXT) for connecting the external timing components ...
Description:
Dual retriggerable monostable multivibrator with reset, The 74HC123-Q100,
74HCT123-Q100 are high-speed Si-gate CMOS devices and are pin compatible with Low-power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC123-Q100, 74HCT123-Q100 are dual retriggerable monostable multivibrators with output pulse width control by three methods, The ...
Description:
The LTC®6993 is a monostable multivibrator (also known
as a “one-shot” pulse generator) with a programmable pulse width of 1μs to 33.6 seconds. The LTC6993 is part of the Timer Blox® family of versatile silicon timing devices. A single resistor, RSET, programs an internal master oscillator frequency, setting the LTC6993’s ...
