The maximum clock frequency for the 74LVC595APW,112 is 100 MHz, but it depends on the operating conditions and the quality of the clock signal. It's recommended to check the clock signal integrity and ensure it meets the setup and hold time requirements.
To prevent damage to the output pins during power-up or power-down, it's recommended to add a pull-down resistor (e.g., 1 kΩ) to each output pin to ensure they are in a defined state. Additionally, consider using a power sequencing circuit to ensure that the VCC supply is stable before enabling the clock signal.
While the 74LVC595APW,112 can sink or source up to 24 mA per output pin, it's not recommended to drive LEDs directly without additional circuitry. The output pins may not be able to handle the high current required by LEDs, and the voltage drop across the internal output transistors may not be sufficient to drive the LEDs efficiently. Consider using an external driver or buffer circuit to drive the LEDs.
The propagation delay through the 74LVC595APW,112 is typically around 10-20 ns, depending on the operating conditions. To minimize the impact of latency, consider using a clock signal with a sufficient frequency to allow for the propagation delay, and ensure that the data is clocked in and out of the shift register during the appropriate clock cycles.
The 74LVC595APW,112 is a 1.65V to 3.6V device, making it suitable for use in 3.3V systems. However, it's not recommended for use in 5V systems, as the maximum rating for the VCC supply is 3.6V. If you need to interface with a 5V system, consider using a level translator or voltage regulator to ensure the supply voltage is within the recommended range.
74LVC595APW,112 datasheet
by NXP Semiconductors
