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FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ
CMOS Inputs
All CMOS inputs must be terminated at either Vcc or Ground.
The inputs of a CMOS device are high-impedance. These terminations can be through a resistor (for example…
FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ
Here are the voltage level translation device recommendations for various industry standard interfaces:
Interface
Recommended Device
3.6V Maximum
5.5V Maximum…
FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ
Flip-flops, latches, and registers do not have a default state on power up. The output is in an 'unknown' state until data is clocked through. Because of this, SPICE simulation models…
FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ
There are two primary issues associated with slow and floating inputs.
Not sure what a 'floating input' is? Please see our FAQ: What is a floating input or floating node?
(1) Shoot…
FAQ: Logic and Voltage Translation > Voltage Translators >> Current FAQ
Yes, the internal pull-up resistors are disconnected once OE is asserted(to enable High impedance on the IO ports)
Additionally, if the device supports Vcc isolation feature …
FAQ: Logic and Voltage Translation > Input Parameters >> Current FAQ
This question is really about the input structure of a logic device.
There are primarily two types of CMOS input structures - one with a positive clamping diode, and one without…
FAQ: Logic and Voltage Translation > Power and Thermals >> Current FAQ
Some datasheets do not specify what should be done with the thermal pad, such as in the image below:
The thermal pad is recommended to be soldered to the PCB and electrically…
Other Parts Discussed in Thread: SN74LVC2G34 FAQ: Logic and Voltage Translation > Output Parameters >> Current FAQ
There are a few issues with trying to determine a maximum capacitive load for a standard CMOS logic device.
First is propagation delay…
FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ
In short, there will be no difference between a device labelled SN74xxG4 and SN74xx.
Historically, G4 and E4 suffixes meant that the devices were rated to be "Green" or…
