The maximum frequency of operation for the 74HC157D is typically around 30-40 MHz, but this can vary depending on the specific application and operating conditions.
To ensure proper power sequencing, it's recommended to power up the VCC pin before applying any input signals, and to power down the VCC pin last when shutting down the device.
The recommended operating voltage range for the 74HC157D is 2.0 V to 6.0 V, with a typical operating voltage of 5.0 V.
Yes, the 74HC157D can be used in a 3.3V system, but the output voltage levels may not be as high as those in a 5.0V system, and the device may not be as fast.
To handle bus contention, it's recommended to use a pull-up or pull-down resistor on the output lines, and to ensure that only one device is driving the bus at a time.
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