Tutorial: 74LS123 / 74HC123

Combines, stores or sequences digital signals.

74LS123 / 74HC123

Tutorial / documentation

Logic & timing

Quick documentation & first test preparation

  1. Identify component 74LS123 and its package.
  2. Read the truth table or timing diagram.
  3. Check the logic family, power supply and states of unused inputs.
  4. Consult the application circuit in the linked documentation before testing.

74LS123

Dual retriggerable Monostable

  • Dual retriggerable Monostable
  • Read the truth table or timing diagram.
  • Check the logic family, power supply and states of unused inputs.
  • The manufacturer’s pinout and absolute limits take precedence over this page.
Technical documentation

74HC123

Dual retriggerable monostable multivibrator

  • Dual retriggerable monostable multivibrator
  • Read the truth table or timing diagram.
  • Check the logic family, power supply and states of unused inputs.
  • The manufacturer’s pinout and absolute limits take precedence over this page.
Technical documentation

Inputs and outputs must match the function described in the selected reference’s documentation.