The recommended operating voltage range for M74HCT02B1R is 4.5V to 5.5V, as specified in the datasheet. However, it's essential to note that the device can tolerate a voltage range of 3.0V to 7.0V, but the performance may vary.
To ensure signal integrity when using M74HCT02B1R in high-speed applications, it's crucial to follow proper PCB design practices, such as using controlled impedance traces, minimizing signal routing, and adding termination resistors as needed. Additionally, consider using a low-skew clock distribution network and ensuring that the device is properly decoupled.
While the M74HCT02B1R is specified for 5V operation, it can be used in a 3.3V system with some limitations. The device will still function, but the output voltage levels may not meet the required specifications, and the noise margin may be reduced. It's essential to carefully evaluate the system requirements and ensure that the device can meet the necessary performance criteria.
The maximum clock frequency supported by M74HCT02B1R is not explicitly stated in the datasheet. However, based on the device's propagation delay and rise/fall times, it's generally recommended to limit the clock frequency to around 100 MHz to ensure reliable operation.
When using M74HCT02B1R in a complex system, it's essential to ensure proper power sequencing to prevent damage or malfunction. The device should be powered up after the power supply has stabilized, and the input signals should be applied only after the device has reached a stable operating state. A power-on reset circuit can be used to ensure a clean startup sequence.
M74HCT02B1R datasheet
by STMicroelectronics
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