TYPE | DESCRIPTION |
---|
Mounting Style | Surface Mount |
Number of Pins | 16 Pin |
Supply Voltage (DC) | 2.00V (min) |
Case/Package | SOIC-16 |
Output Current | 5.2 mA |
Number of Positions | 16 Position |
Number of Gates | 2 Gate |
Rise Time | 400 ns |
Operating Temperature (Max) | 125 ℃ |
Operating Temperature (Min) | -40 ℃ |
Supply Voltage | 2V ~ 6V |
Supply Voltage (Max) | 6 V |
Supply Voltage (Min) | 2 V |
TYPE | DESCRIPTION |
---|
Product Lifecycle Status | Active |
Packaging | Tape & Reel (TR) |
Size-Height | 1.45 mm |
Operating Temperature | -40℃ ~ 125℃ |
The 74HC123D is a dual retriggerable Monostable Multivibrator with a reset. It is pin compatible with low-power Schottky TTL (LSTTL). It comes with an output pulse width control. The Schmitt-trigger action in the nA and nB inputs, makes the circuit highly tolerant to slower input rise and fall times. The output pulse is controlled by three methods, first - the basic pulse is programmed by selection of an external resistor (REXT) and capacitor (CEXT). Second - Once triggered, the basic output pulse width may be extended by retriggering the gated active low-going edge input (nA\\) or the active high-going edge input (nB). By repeating this process, the output pulse period (nQ = high, nQ\ = low) can be made as long as desired. Alternatively an output delay can be terminated at any time by a low-going edge on input nRD\, which also inhibits the triggering. Third - an internal connection from nRD to the input gates makes it possible to trigger.
● DC triggered from active high or active low inputs
● Retriggerable for very long pulses up to 100% duty factor
● Direct reset terminates output pulse
● Schmitt-trigger action on all inputs except for the reset input
● Complies with JEDEC standard No. 7A
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