HD74LS123P
Dual Retriggerable Monostable Multivibrators (with Clear)
This d-c triggered multivibrator features output pulse width control by three method. The basic pulse time is
programmed by selection of external resistance and capacitance values. Once triggered, the basic pulse width may be
extended by retriggering the gated low-level -active (A) or high-level active (B) inputs, or be reduced by use of the
overriding clear. Figure 1 illustrates pulse control by retriggering and early clear. This device is provided enough
Schmitt hysteresis to ensure jitter-free triggering from the B input with transition rates as slow as 0.1 mV/ns.
HD74LS123P is a voltage-rising delay device, commonly used in digital circuits. It can delay a rising voltage and output a delayed voltage. It is typically found in products such as computer motherboards, data collection systems, test and measurement equipment, communication equipment, industrial automation equipment, automotive electronic systems, household appliances, and so on. Note that this is an old model chip and it may no longer be in production now.
