CD74HC123M datasheet by Texas Instruments

CD74HC123M Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the CD74HC123M?
  The maximum frequency of operation for the CD74HC123M is 10 MHz.
• Can I use the CD74HC123M in a 5V system?
  Yes, the CD74HC123M is compatible with 5V systems, but it's recommended to use a voltage regulator to ensure a stable 5V supply.
• How do I handle the reset pin (MR) in my design?
  The reset pin (MR) should be tied to VCC through a pull-up resistor (e.g., 1 kΩ) to ensure proper operation. A capacitor (e.g., 10 nF) can be added in parallel to filter out noise.
• What is the purpose of the enable input (EN) in the CD74HC123M?
  The enable input (EN) allows the oscillator to be enabled or disabled. When EN is low, the oscillator is enabled, and when EN is high, the oscillator is disabled.
• Can I use the CD74HC123M in a 3.3V system?
  Yes, the CD74HC123M is compatible with 3.3V systems, but the output frequency may be affected. Consult the datasheet for specific frequency vs. voltage characteristics.