74HC4538 Description
The 74HC4538 is a dual retriggerable-resettable monostable multivibrator. Each multivibrator has two trigger/retrigger inputs (nA and nB), a direct reset input (nCD), two plementary outputs (nQ and nQ), and two pins (nREXT/CEXT and nCEXT) for connecting the external timing ponents CEXT and REXT. Typical pulse width variation over temperature range is ± 0.2.
74HC4538 Key Features
- Wide supply voltage range from 2.0 to 6.0 V
- CMOS low power dissipation
- CMOS input levels
- High noise immunity
- Tolerant of slow trigger rise and fall times
- Separate reset inputs
- Triggering from falling or rising edge
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
- plies with JEDEC standards
- JESD8C (2.7 V to 3.6 V)