The recommended operating voltage range for the CD74HCT123M is 4.5V to 5.5V, although it can operate down to 4V with reduced performance.
Unused inputs on the CD74HCT123M should be tied to VCC or GND to prevent floating inputs, which can cause unpredictable behavior.
The maximum clock frequency that the CD74HCT123M can handle is 30MHz, although this can vary depending on the specific application and operating conditions.
While the CD74HCT123M 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 compatible with 3.3V logic, and the device may not meet its specified timing parameters.
To ensure proper power-up and initialization, the CD74HCT123M should be powered up slowly (dv/dt < 10V/μs) and the clock input should be low during power-up. Additionally, the device should be reset after power-up to ensure that it is in a known state.
