SN74LS123DRG4 datasheet by Texas Instruments

SN74LS123DRG4 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the SN74LS123DRG4?
  The recommended operating voltage range for the SN74LS123DRG4 is 4.75V to 5.25V, although it can operate from 4.5V to 5.5V with reduced performance.
• How do I handle the power-up and power-down sequences for the SN74LS123DRG4?
  It is recommended to power up the VCC pin before the input signals, and power down the VCC pin after the input signals. This helps prevent unwanted output transitions and ensures proper device operation.
• What is the maximum clock frequency that the SN74LS123DRG4 can handle?
  The maximum clock frequency that the SN74LS123DRG4 can handle is 10 MHz, although this can vary depending on the specific application and operating conditions.
• How do I ensure that the SN74LS123DRG4 is properly terminated to prevent signal reflections?
  It is recommended to use a termination resistor (e.g. 50 ohms) at the output of the device to prevent signal reflections and ensure proper signal integrity.
• What is the maximum output current that the SN74LS123DRG4 can sink or source?
  The maximum output current that the SN74LS123DRG4 can sink or source is 24 mA, although this can vary depending on the specific application and operating conditions.