The recommended operating voltage range for the HCF4021BM1 is 5V to 15V, with a typical voltage of 10V.
To ensure proper power-on and power-off, it is recommended to use a slow rise time (typically 1-10 ms) and a slow fall time (typically 1-10 ms) for the power supply voltage. This helps prevent latch-up and ensures reliable operation.
The maximum frequency of operation for the HCF4021BM1 is typically 10 MHz, but this can vary depending on the specific application and operating conditions.
To handle thermal considerations, ensure that the device is mounted on a suitable heat sink, and that the ambient temperature is within the recommended operating range (typically -40°C to 85°C). Also, ensure that the device is not exposed to excessive thermal stress or overheating.
To ensure reliable operation, follow good PCB layout and routing practices, such as keeping signal traces short and direct, avoiding noise-sensitive areas, and using proper decoupling and bypassing techniques.
HCF4021BM1 datasheet
by STMicroelectronics
