M74HC595B1R datasheet by STMicroelectronics

M74HC595B1R Frequently Asked Questions (FAQs)

• What is the maximum clock frequency for the M74HC595B1R?
  The maximum clock frequency for the M74HC595B1R is 25 MHz.
• Can I use the M74HC595B1R with a 5V supply voltage?
  Yes, the M74HC595B1R can operate with a supply voltage (VCC) ranging from 2V to 6V, including 5V.
• How do I reset the shift register?
  The shift register can be reset by applying a low signal to the MR (Master Reset) pin.
• What is the purpose of the Q7S pin?
  The Q7S pin is an output that provides the serial output of the last stage (Q7) of the shift register, allowing for cascading of multiple devices.
• Can I use the M74HC595B1R as a latch?
  Yes, the M74HC595B1R can be used as a latch by applying a low signal to the RCLK (Register Clock) pin, which transfers the data from the shift register to the output latches.