74HC4538D-Q100,118

The 74HC4538-Q100; 74HCT4538-Q100 are high-speed Si-gate CMOS devices and are pin compatible with Low-power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC4538-Q100; 74HCT4538-Q100 are dual retriggerable-resettable monostable multivibrators. Each multivibrator has: an active LOW trigger/retrigger input (nA) an active HIGH trigger/retrigger input (nB) an overriding active LOW direct reset input (nCD) an output (nQ) and its complement (nQ) two pins (nREXT/CEXT and nCEXT) for connecting the external timing components CEXT and REXT Typical pulse width variation over the specified temperature range is ±0.2 %. The multivibrator may be triggered by either the positive or the negative edges of the input pulse. The duration and accuracy of the output pulse are determined by the external timing components CEXT and REXT. The output pulse width (tW) is equal to 0.7 x REXT x CEXT. The linear design techniques guarantee precise control of the output pulse width. A LOW level at nCD terminates the output pulse immediately. Schmitt trigger action on pins nA and nB makes the circuit highly tolerant of slower rise and fall times. This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

• Automotive product qualification in accordance with AEC-Q100 (Grade 1)
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C
• Tolerant of slow trigger rise and fall times
• Separate reset inputs
• Triggering from falling or rising edge
• ESD protection:
  • MIL-STD-883, method 3015 exceeds 2000 V
  • HBM JESD22-A114F exceeds 2000 V
  • MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 O)
• Multiple package options