Tutorial: 74LS168 / 74LS169
Combines, stores or sequences digital signals.
Logic & timing
Quick documentation & first test preparation
- Identify component 74LS168 and its package.
- Read the truth table or timing diagram.
- Check the logic family, power supply and states of unused inputs.
- Consult the application circuit in the linked documentation before testing.
74LS168
Synchronous 4-bit Up/Down Decimal counter
- Synchronous 4-bit Up/Down Decimal counter
- 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.
74LS169
Synchronous 4-bit Up/Down binary counter
- Synchronous 4-bit Up/Down binary counter
- 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.
Inputs and outputs must match the function described in the selected reference’s documentation.