74HC4538 Overview
74HCT4538 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
- Tolerant of slow trigger rise and fall times
- Separate reset inputs
- Triggering from falling or rising edge
- plies with JEDEC standard no. 7A
- Input levels
- For 74HC4538: CMOS level
- For 74HCT4538: TTL level
- ESD protection
- HBM JESD22-A114F exceeds 2000 V
- MM JESD22-A115-A exceeds 200 V
