Part 74HC4538
Description Dual retriggerable precision monostable multivibrator
Manufacturer NXP Semiconductors
Size 208.27 KB
NXP Semiconductors
74HC4538

Overview

The 74HC4538; 74HCT4538 is a dual retriggerable-resettable monostable multivibrator. Each multivibrator has two trigger/retrigger inputs (nA and nB), a direct reset input (nCD), two complementary outputs (nQ and nQ), and two pins (nREXT/CEXT and nCEXT) for connecting the external timing components CEXT and REXT.

  • Tolerant of slow trigger rise and fall times
  • Separate reset inputs
  • Triggering from falling or rising edge
  • Complies 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
  • Multiple package options
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C NXP Semiconductors 74HC4538; 74HCT4538 Dual retriggerable precision monostable multivibrator