The maximum clock frequency for the SN74HC595 is 100 MHz, but it can vary depending on the operating voltage and temperature. It's recommended to check the datasheet for specific frequency limits at different operating conditions.
To ensure that the output pins are in a high-impedance state during power-up or reset, you can use an external pull-up or pull-down resistor on the OE (output enable) pin. This will keep the outputs in a high-impedance state until the device is fully powered up and the OE pin is actively driven low.
Yes, the SN74HC595 can be used as a level shifter, but it's not recommended. The device is designed to operate within a specific voltage range (2V to 6V), and using it as a level shifter may exceed its recommended operating conditions. Instead, consider using a dedicated level shifter IC or a voltage translator.
The SN74HC595 has a latency of 10 ns to 30 ns between the clock signal and the output data, depending on the operating frequency and voltage. To handle this latency, you can add a delay element or a buffer stage between the clock signal and the output data, or adjust your system's timing accordingly.
Yes, the SN74HC595 is 5V tolerant on its inputs, so it can be used in a 3.3V system with 5V tolerant inputs. However, ensure that the output voltage does not exceed the maximum rating of 6V, and that the input voltage does not exceed the maximum rating of 7V.
SN74HC595DBRG4 datasheet
by Texas Instruments
