General-Purpose Logic ICs Frequently Asked Questions
The following are frequently asked questions on General-Purpose Logic ICs.
Click an item to view its answer.
- What are the differences between the series?
- What are the differences between "absolute maximum ratings" and "recommended operating conditions"?
- How should I turn on/off the power and inputs?
- What kinds of faults are expected when overvoltage or overcurrent is applied to the input or output of the IC? What measures can be used?
- If overvoltage or overcurrent has likely been applied to a product and the product does not show any abnormality after that, can I use it?
- If static charge is applied to a general-purpose CMOS logic, what kinds of faults are expected? What measures can be used?
- Is a decoupling capacitor required for the power supply?
- Can I leave unused inputs of general-purpose CMOS logic open?
- Can I leave unused outputs of general-purpose CMOS logic open?
- Can I leave inputs and outputs of bidirectional bus buffer open when they are floating?
- Can I short circuit the outputs of general-purpose CMOS logic to use them?
- If outputs of general-purpose CMOS logic conflict, is the IC affected?
- Are there any rules on input with slow rising edge and/or trailing edge?
- How much (mA) is accepted as output current?
- How can I calculate fan-out?
- I want to put a capacitor to output. Is this OK?
- How can I calculate the consumption current and consumption power?
- Tell me about thermal design.
- Tell me about the input tolerant function.
- Tell me about the output tolerant function.
- In order to perform level shift from 5V to 3.3V and vice versa.
- In order to perform level shift from 1.8V to 2.5V and vice versa.
- In order to perform level shift bidirectional 245 type.
- Are the output statuses of the flip-flops, registers, counters, and one-shot multi-vibrators determined?
- Tell me the functions of the bus-hold product.
- Tell me about the input process of bus switches and analog switches.
- Tell me about the process of the polar zone on the back side of the compact package CST8, VQON16 / 20 / 24.
