Questions tagged [tri-state]
A signalling standard typically used in buses that either drives the wire low, drives the wire high or disconnects from the wire (Hi-impedance, Hi-Z or tri-stated) such that there will not be a driver conflict when the wire is driven by another unit/driver. Two low impedance drivers driving to different levels (High Vs. Low) can potentially damage each other but certainly will corrupt the data on the wire. Allows for shared wires (with coordination).
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Might this tri-state level shifter work?
I just thought of this idea for a one-directional tri-state level shifter that does not need an output-enable pin:
The idea is that if the input A driven hard (high or low) then it just behaves as a ...
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Tri-state input [closed]
I'm familiar with tri-state outputs. They can be high, low or high-impedance.
Now I read somewhere that tri-state inputs can detect wether they are connected or not.
Aren't digital inputs always high-...
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What is the difference between an N-MOS FET and a tri-state buffer? [closed]
Is an N-MOS FET an equivalent of a tri-state buffer, where the source is the input, the gate is the enable, and the drain is the output?
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Tri-state input to three logic states
I'm looking for an IC or small circuit that implements the following truth table:
Input
Output 1
Output 2
H
H
L
L
L
H
Z
H
H
Is this possible?
The purpose is to keep an SPI SS signal pulled high ...
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Why do we use a MUX rather than tristate buffers to implement a bus?
Consider a small digital system consisting of registers connected to a bus interconnection network. It is well-known that the output to the bus can (functionally) be implemented either with tristate ...
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What is the difference between a tristate buffer and a transmission gate?
Functionally, these two "blocks" seem to do the same thing: send input to output if enabled and present high impedance Z on the output if not. However, this answer seems to suggest a ...
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Isolate unpowered MCU UART
I'm an EE student working on my first hobby project involving ECAD and currently I have an ESP32-C3 connected to a BM83 Bluetooth audio module via UART.
There will be moments when only one MCU is ...
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Is there any such thing as a tristable, quadristable, etc. multivibrator?
The title says it all.
Is there a discrete circuit that can produce 4 different outputs based on a single tactile switch click?
I'd like to do this with either a discrete design or a 74373 since ...
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Tri-State gates in CMOS [duplicate]
How do you build tri-state gates on transistor level? I've tried to come up with some designs -like connecting the output of the gate to the source port of a PMOS transistor with the enabled signal as ...
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Looking for a Quad 3−State Noninverting Buffers in DIP package [closed]
My application is a half-duplex serial communication (2 buffers) and a switch for a 35 to 60mA load (1 buffer). I found On Semi MC74HC126AN (https://rocelec.widen.net/view/pdf/h52tembhav/ONSMS12940-1....
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How can I differentiate between high and high-Z state?
I'm using this MCP73831 device.
I want to know how what to expect as a voltage level on the STAT pin when the below chart on page 13 says, STAT = HIGH & STAT = HIGH-Z.
When the charging is ...
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Treating a high-Z input as both high and low at the same time
Setup (not strictly necessary to answering the problem; supplied for the curious): I have a single logic output pin from a device, logic 0 = 0 V, logic 1 = pulled high to Vcc through a 10 kΩ resistor. ...
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How is this capacitance affecting other parts of the circuit?
I'm attempting to drive a matrix of LEDs. Columns. Rows. It flickers too much for my liking, so I tried smoothing the LEDs with capacitors, but I'm getting very odd behaviour.
Here is a minimal ...
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Implementing three-state logic
Can we build a three-state logic gate using only transistors (or basic logic gates)? If so, how is it built?
I'm trying to build a model for an 8-bit computer in LogiSim, and I'm trying to find out if ...
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Converting 2-line gate driver PWM to 1-line 3-state
I'm a software engineer, not really experienced in the hardware design, looking to confirm if I correctly designing the following piece:
I have a FOC motor controller chip (TMC4671) that is only able ...
