The maximum operating frequency of the SNJ54LS193FK is 30 MHz, but it can be affected by factors such as supply voltage, temperature, and load capacitance.
To ensure reliable operation in high-temperature environments, it is recommended to follow proper thermal management practices, such as providing adequate heat sinking and airflow, and derating the device's operating frequency and voltage as necessary.
The recommended power-on sequence for the SNJ54LS193FK is to apply the power supply voltage (VCC) before applying the clock signal (CLK). This helps to prevent unwanted latch-up or oscillation during power-up.
The SNJ54LS193FK is a 5V device, but it can be used in 3.3V or 2.5V systems with proper voltage translation and level shifting. However, the device's performance and functionality may be affected, and additional circuitry may be required to ensure reliable operation.
Asynchronous inputs to the SNJ54LS193FK should be synchronized to the clock signal (CLK) using a synchronizer circuit or a flip-flop to prevent metastability and ensure reliable operation.
SNJ54LS193FK datasheet
by Texas Instruments
