74HC4094D datasheet by Philips Semiconductors

74HC4094D Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with the 74HC4094D?
  The maximum clock frequency for the 74HC4094D is 25 MHz, but it can vary depending on the operating voltage and temperature. It's recommended to check the timing diagrams and specifications in the datasheet to ensure proper operation.
• How do I ensure that the shift register is properly initialized after power-on?
  To ensure proper initialization, it's recommended to tie the MR (Master Reset) pin to VCC through a pull-up resistor. This will ensure that the shift register is reset to a known state after power-on. Additionally, you can also use an external reset signal to initialize the shift register.
• Can I use the 74HC4094D as a serial-to-parallel converter?
  Yes, the 74HC4094D can be used as a serial-to-parallel converter. By clocking in serial data through the DS (Data In) pin, you can shift the data into the internal shift register and then latch the data into the parallel output pins using the LE (Latch Enable) pin.
• What is the maximum output current that can be sourced or sunk by the 74HC4094D?
  The maximum output current that can be sourced or sunk by the 74HC4094D is 25 mA per pin. However, it's recommended to limit the output current to 10 mA per pin to ensure reliable operation and to prevent overheating.
• Can I use the 74HC4094D in a 5V system?
  Yes, the 74HC4094D is compatible with 5V systems. However, it's recommended to check the voltage tolerance of the device and ensure that the operating voltage is within the recommended range of 2V to 6V.