The maximum operating frequency of the SN74HCT32NSR is typically around 30-40 MHz, but this can vary depending on the specific application, supply voltage, and output load.
To ensure proper operation, the SN74HCT32NSR should be powered from a stable 5V supply with a minimum of 10uF decoupling capacitor between VCC and GND, placed as close to the device as possible.
The input voltage threshold for the SN74HCT32NSR is typically around 2.0V for a logic high and 0.8V for a logic low, but this can vary depending on the specific application and operating conditions.
While the SN74HCT32NSR is specified for 5V operation, it can be used in a 3.3V system with some limitations. However, the output voltage levels may not be fully compatible with 3.3V logic, and the device may not meet its specified propagation delay and rise/fall times.
Unused inputs on the SN74HCT32NSR should be tied to a valid logic level (either VCC or GND) to prevent floating inputs and ensure proper device operation.